North Dakota State University * Dickinson Research Extension Center
1089 State Avenue, Dickinson, ND 58601-4642 Voice: (701) 483-2348 FAX: (701) 483-2005


FIELD EVALUATION OF WOODY PLANT MATERIAL FOR CONSERVATION USE IN THE NORTHERN GREAT PLAINS

Russel J. Haas, Plant Materials Specialist
Dwight A. Tober, Plant Materials Center Manager
Michael K. Knudson, Forester
USDA, SCS, Plant materials Center, Bismarck, North Dakota

Introduction

There is a need to evaluate the performance of shrub and tree species/cultivars for windbreaks, wildlife, and recreational plantings under diverse soil and climatic conditions. To meet this need, field evaluation planting sites representative of the major land resource areas were located in the three states served by the PMC. These sites provide planting locations under long-term land tenure, for assemblies of trees and shrubs to be evaluated under uniform culture and management. New material can be added on an annual basis. Comparisons are then made with previously released cultivars and area of adaptation determined.

Objective

The objective is to assemble and evaluate woody plant materials for conservation use. Superior cultivars will be selected and released for increase by commercial nurseries.

Cooperators

The Soil Conservation Service, Plant Materials Center, Bismarck, North Dakota, in cooperation with the North Dakota State University, Dickinson Branch Experiment Station, Dickinson, North Dakota.

Location

This project is located one mile west of Dickinson, North Dakota, on the NDSU Dickinson Branch Experiment Station. Legal description: NE 1/4 sec. 5, T. 139 N., R. 96 W., Stark County, North Dakota.

Major Land Resource Area

The site is located in Major Land Resource Area 054, Rolling Soft Shale Plain. This moderately dissected rolling plain is underlain by calcareous shales and sandstones. Strongly dissected areas of sharp local relief or badland topography border major streams and valleys in some areas. Elevation is 1,800 to 3,100 feet. Sixty percent of the area is rangeland.

Soils

The soil type is a Parshall fine sandy loam. The Parshall series consists of deep, well drained soils formed in fine, sandy loam alluvium on terraces and outwash plains and in upland shales. The surface layer and subsoil is dark grayish-brown fine sandy loam. The underlying material is dark grayish-brown fine sandy loam and loamy fine sand. Permeability is moderately rapid. The available water capacity is moderate. Organic matter is high and fertility is medium.

This soil is in North Dakota windbreak suitability group 5. Included in this group are nearly level to hilly soils of the Flaxton, Lihen, Livonia, Parshall, and Vebar series, among others. These are well-drained, loamy and sandy soils. They are suited to windbreak and other plantings, but selection of species is limited. Erosion hazard is serious. The moderate available water capacity is the main limitation.

Climate

For MLRA 054 the average annual precipitation is 13 to 19 inches; increasing from west to east for this semiarid area. Rainfall is highest from late spring to midsummer and very low during the rest of the year. Winter precipitation is snow. Average annual temperature is 40 to 45 degrees F. Average freeze-free period is 110 to 135 days. The plant hardiness zone is 4a, with an average annual minimum temperature of -30 to -20 degrees F. Climatic data for 1992-1993 recorded at Dickinson Branch Experiment Station, Dickinson, North Dakota, is shown in Table DI-1.

METHODS AND MATERIALS

Assembly

Refer to Table DI-2 for a list of woody species planted from 1978 to 1993.

Planting Plan

Plots are not randomized or replicated but systematically arranged for ease of evaluation and demonstration purposes. The planting site is approximately 500 feet long and 200 feet wide. The area is divided into five blocks. Each block consists of single row, non-replicated plots. Each plot contains a minimum of 5 plants. Row length is 100 feet and spacing between rows is 20 feet. Block 1A contains primarily poplar accessions. Block 1B contains conifers. Block 2 contains shrubs and small trees. Block 3 contains medium sized trees. Block 4 contains tall trees. All trees are spaced ten feet within row and shrubs are spaced five feet within row. All rows run from west to east. Like species and standards of comparison are established in adjacent plots whenever possible.

Plot Preparation

A clean, firm planting site is prepared annually by disking and harrowing.

Planting Method

All trees and shrubs were hand planted using approved forestry methods.

Planting Date

Refer to Table DI-2 for a list of woody species planted from 1978 through 1993. Replacement stock is planted after establishment year if available.

Fertilization

No fertilizer has been applied to planting area.

Weed Control

No herbicide has been applied to any plot during year of establishment or in succeeding years. Weeds were controlled by clean cultivating between rows, within row, and in fallow areas. Four to six tillage operations were performed each year in the months of May through August. A minimum of hand hoeing was done to control weeds in rows.

Pest Control

Previous years: No animal repellent or insecticide was applied in 1978. In the fall 1979, an animal repellent, Arasan 50, was sprayed on fruit trees to discourage rodent damage.

1980-1981: On November 6, 1980 and October 29, 1981, Arasan 50 was applied to the trunks and lower limbs of fruit trees to deter rodents from damaging bark and cambium. Conifers also received this spray treatment to discourage animal browse. No insecticides were applied.

1982-1993: No animal repellents or insecticides have been applied.

Irrigation

Each year, newly planted materials were watered with a portable tank. No water was added following year of establishment. During the drought years of 1988-1991 the trees were watered in the summer.

Crop Residue Management

During 1990 and 1991 a cover crop was maintained to prevent soil erosion.

Silvicultural Practices

Extensive pruning was done in 1979-1980 to reshape trees damaged by animals. Dead trees and broken branches were cut and removed each year for sanitation. In 1988, some Russian olive accessions were treated with Tordon, using a hypo-hatchet, with unsuccessful results. In 1989, those treated accessions were cut down. In 1994, many diseased and/or poor performing selections were removed with the assistance of the Research Center's equipment and personnel.

Evaluations and Measurements

Previous years: Records of planting date, survival, vigor, canopy width, height, cold hardiness, animal damage, insect damage, disease symptoms, and unusual or outstanding features have been maintained since 1978 and are listed in Table DI-2.

RESULTS

Plant Performance

Plant performance data was recorded in September 1994 and 1995. Not all data appears in this report.

Currently, 84 accessions of 51 species are under evaluation. This site is fairly well maintained by the Dickinson Experiment Station. Very little weed competition has occurred within row. A favorable microclimate is provided by surrounding shelter belts. This undoubtedly reduces exposure to extreme temperatures and winds and desiccation and winter injury. Annual rainfall amounts are similar to Bismarck. The drought years of 1988 and 1989 have severely hampered establishment and performance. With the continued dry weather in 1990 and 1991, the original windbreak of spruce planted on the border are dying. A number of planted accessions are also dying. The following accessions exhibit potential for further evaluation and use:

Accession Number Genus/Species Origin/Source Plot Location
ND-1765 9005980 Siberian larch, Laris sibirica USDA, FS, Shelterbelt Lab., Bottineau, ND 1/03/1-10
ND-628 9005887 Silverberry, Elaeagnus cummutata Wells Co., ND 2/02/1-10
'Red Splendor' 9006004 Flowering crabapple, Malux X Lee Nursery, Fertile MN 3/01/6-10
ND-1336 9006088 Chokecherry, Prunus virginiana Mercer Co., Stanton ND 3/06/6-10
ND-629 9005645 PI-477992 Amur Maple, Acer ginnala Res. Sta., Morden, MB, Canada 3/08/6-10
ND-1873 9005648 Amur Maple, Acer ginnala Lincoln-Oakes Nursery, Bismarck ND 3/09/1-5
SD-156 9005890 Green ash, Fraxinus pennsylvanica Deuel Co., Clear Lake, SD 4/01/1-5
ND-1759 9005893 Green ash, Fraxinus pennsylvanica SD-156 x MDN-12002 USDA, SCS, PMC, Bismarck ND 4/02/6-10
ND-21 9034900 nannyberry, Viburnum lentago USDA, ARS, Mandan, ND 1B/09/6-10
ND-1879 9011850 PI-503531 Honey locust, Gleditsia triacanthos ARS Field Station, Woodward OK 4/04/1-5
ND-283 9006079 PI-540442 Russian Almond, Prunus tenella ND Game and Fish Dept. 2/04/11-20
'Bighorn' PI-483445 Skunkbush sumac, Rhus trilobata Bighorn Co., WY 2/02/11-20

2/04/1-10

ND-11 PI-477998 Amur honeysuckle, Lonicera maackii Res. Sta., Morden, Manitoba, Canada 2/05/1-10
9008041 False Indigo, Amorpha fruticosa USDA, SCS, PMC, Aberdeen, ID 3/3/11-15
SD-75 9005713 Hackberry, Celtis Occidentalis Potter Co., SD 4/9/1-10
ND-170 9005728 cotoneaster, Cotoneaster integerrima   2/03/16-20

Summary

This field evaluation planting was established in 1978.  Data from this planting has been used to document the cooperative release of the eight varieties listed below.  These are currently in large scale production and use in conservation and wildlife plantings in the northern Great Plains.  The data has alos assisted nurserymen and plant researchers from several agencies determine the range of adaptation and perforamnce of their new varieties or experimental selections.

'Cardan' green ash 'Scarlet' Mongolian cherry
'Oahe' hackberry 'Sakakawea' silver buffaloberry
'Midwest' crabapple 'McDermand' ussurian pear
'Centennial' cotoneaster 'Homestead' hawthorn
'Regal' Russian almond is the next variety scheduled for cooperative release in the near future.

 

USDA, SCS, PMC, Bismarck, North Dakota

Project No.: 381316K

Project Title: Filed Evaluation of Woody Plant materials (FEP)

Locations: North Dakota State University, Dickinson Branch Experiment Station, Dickinson, North Dakota

Major Land Resource Area: 054

Soil Series Texture: Parshall fine sandy loam

year of Record: 1992-1993

 

PLOT LOCATION  
ACCESSION NUMBER  
PLANT SYMBOL  
COMMON NAME  
GENUS/SPECIES  
ORIGIN/SOURCE  
TRANS DATE TRANSPLANT DATE
YR PLT YEAR PLANTED
YR REC YEAR OF RECORD
MTL PLTD MATERIAL PLANTED
AGE AGE OF STOCK
NO PLTS NUMBER OF PLANTS
NO SRV NUMBER OF PLANTS SURVIVING
PCT SRV PERCENT SURVIVAL
VI VIGOR
CAN COV CANOPY COVER, CM
PLT HT PLANT HEIGHT, CM
REMARKS  
 
EVALUATION RATING SYSTEM
VIGOR
1 = EXCELLENT
3 = GOOD
5 = FAIR
7 = POOR
9 = VERY POOR

 

Table DI-2.
Project NO.: 381316K Field Evaluation of Woody Plant Materials, Dickinson, North Dakota
Year of Record: 1994-1995

PLOT LOCATION ACCESSION NUMBER PLANT SYMBOL GENUS/ SPECIES ORGIN/ SOURCE TRANS DATE YR PLT YR REC MTL PLTD AGE NO PLTS NO SRV PCT SRV VI CAN COV PLT
HT
REMARK
IA/1/1-5 9058870 PODE X poplar 05/09 90 90 PLBR   5 5 100 1 47 102  
  14272 PONI Populus deltoides x P. nigra     91       5 100 3 69 124  
      USDA, ARS, Mandan, ND     92       5 100 5 110 153  
      Lincoln-Oakes Nursery, Bismarck, ND                        
 
IA/1/6-10 9058869 PODE X poplar 05/09 90 90 PLBR   5 5 100 3 35 95  
  14271 PONI Populus deltoides x P. nigra     91       1 20 6 10 55  
      USDA, ARS, Mandan, ND     92       5 20 4 51 106  
      Lincoln-Oakes Nursery, Bismarck, ND                        
 
IA/2/1-5 9058872 PODE X poplar 05/09 90 90 PLBR   5 5 100 2 50 99  
  14274 PONI Populus deltoides x P. nigra     91       4 80 3 59 129  
      USDA, ARS, Mandan, ND     92       5 100 4 54 119  
      Lincoln-Oakes Nursery, Bismarck, ND                        
 
IA/2/6-10 9058871 PODE X poplar 05/09 90 90 PLBR   5 5 100 4 27 99  
  14273 PONI Populus deltoides x P. nigra     91       1 20   75 115  
  Manitou   USDA, ARS, Mandan, ND     92       5 100 3 147 189 Leaf rust
      Lincoln-Oakes Nursery, Bismarck, ND                        
 
IA/3/1-5 9058874 POPUL poplar 05/09 90 90 PLBR   5 5 100 2 53 92  
  14392   Populus     91       5 100 4 76 126  
      USDA, ARS, Mandan, ND     92       5 100 4 49 98  
      Lincoln-Oakes Nursery, Bismarck, ND                        
 
IA/3/6-10 9058873 POPUL poplar 05/09 90 90 PLBR   5 5 100 3 37 113  
  14390   Populus     91       1 20 5 30 60  
      USDA, ARS, Mandan, ND     92       5 100 4 49 98  
      Lincoln-Oakes Nursery, Bismarck, ND                        
 
IA/4/1-5 9030611 POAL white poplar 05/15 92 92 CONT (P)   5 4 80 4 48 50  
  ND-3796   Populus alba     93       5 100 2 116 113  
      Turner Co., SD                        
      USDA, SCS, PMC, Bismarck, ND                        
 
IA/4/6-10 9058896   super tree 05/09 90 90 PLBR   5 3 60 6 40 110  
      Salix matsudana X alba     91       2 40 4 48 120  
      Austree, Inc., Pescadero, CA     92       2 40 4 78 152  
            93       0 0   Removed not adapted
 
IA/4/6-10 Raverdeau POPUL hybrid poplar 05/10 93 93 PLBR   5 5 100 3 36 69  
  9069085   Poplulus                        
      Lee Nursery, Fertile, MN                        
 
IA/5/1-5 Theves POPUL hybrid poplar 05/10 93 93 PLBR   5 5 100 4 39 82  
  9069086   Populus                        
      Lee Nursery, Fertile, MN                        
 
IA/5/6-10 9069090 POTR quaking aspen 05/15 93 93 PLBR   5 4 80 5 24 51  
      Populus tremuloideas                        
      Lee Nursery, Fertile, MN                        
 
IA/6/1-5 9063146 POPUL hybrid poplar 05/10 93 93 PLBR   5 5 100 6 7 33  
      Populus                        
      PFRA, Indianhead, Saskatchewan                        
 
IA/6/6-10 Assiniboine POPUL hybrid poplar 05/10 93 93 PLBR   5 5 100 4 15 54  
  9063147   populus                        
      PFRA, Indianhead, Saskatchewan                        
 
IA/7/1-10 9063103 ULPU Siberian elm 05/08 91 91 CONT   10 1 10 5 20 45 small stock, unable to get established in drought
      Ulmus pumila     92       0 0        
      Dickey Co., ND

USDA, ARS, Mandan, ND

                       
 
IA/7/1-5 9063141 PODE eastern cottonwood 05/10 93 93 PLBR   5 5 100 3 49 104  
      Populus deltoides                        
      Lincoln-Oakes Nursery, Bismarck, ND                        
 
IA/7/6-10 9069102 ULPU Siberian elm 06/10 93 93 CONT   5 5 100 2 45 107  
  clone 009   Ulmus pumila                        
      USDA, ARS, Mandan, ND                        
 
IA/8/1-10 9063104 ULPU Siberian elm 5/08 91 91 CONT   10 2 20 5 15 53  
  clone 039   Ulmus pumila     92       2 20 4 82 105  
      Sargent Co., ND     93       2 20 6 172 152  
      USDA, ARS, Mandan, ND                        
 
IA/9/1-5 9069103 ULPU Siberian elm 06/10 93 93 CONT (P)   5 4 80 4 38 69 weed fabric squares on each tree
  clone 012   Ulmus pumila                        
      USDA, NRCS, PMC, Bridger, MT                        
 
IA/9/1-5 9054820 ULPU Siberian elm 05/04 95 95 PLBR   5 5 100 3 101 123  
      Ulmus pumila                        
      USDA, ARS, PMC, Bridger, MT                        
 
IA/9/6-10 9069104 ULPU Siberian elm 06/10 93 93 CONT (P)   5 5 100 4 33 70  
  clone 027   Ulmus pumila                        
      USDA, ARS, Mandan, ND                        
 
IA/10/1-5 9058899   supertree 05/08 91 91 CONT   5 5 100 5 35 123  
      Salix matsudana X alba     92       2 40 6 55 123  
      Austree, Inc., Pescadero, CA     93       2 40 5 85 152  
 
IA/10/6-10 'Homestead' ULPU Siberian elm 06/10 93 93 CONT (P)   5 4 100 4 31 85  
  9069108   Ulmus pumila                        
  14444   USDA, ARS, mandan, ND                        
 
IB/01/1-10 ND-1729 LASI* Siberian larch 5/16 78 78 PLBR 1-0 10 9 90 3 21 62  
  9005979   Larix sibirica     79       10 100   22 44  
      NDFS State Nursery, Towner, ND     80       10 100 4 33 55  
            82       8 80 8 29 46  
            83       6 60 7 33 74 1 mowed off, moderate rodent damage
            84       6 60 4 39 91  
            87       6 60 6 90 197  
            92       5 50 4 234 348  
 
IB/02/1-10 SL-383-T LASI* Siberian larch 5/17 78 78 PLBR 1-0 10 10 100 3 17 68  
  Pallet No.   Larix sibirica     79       10 100   24 49  
  2392   Denbigh Exp. Forest     80       10 100 4 43 62  
  9005976   USDA, FS, Shelterbelt Lab.,     82       9 90 6 47 69  
      Bottineau, ND     83       9 90 6 61 119 1 mowed off, moderate rodent damage
            84       8 80 2 78 170  
            87       8 80 2 181 306  
            92       8 80 8 301 499  
 
IB/03/1-10 ND-1765 LASI* Siberian larch 05/17 78 78 PLBR 2-0 10 10 100 3 17 44  
  9005980   Larix sibirica     79       10 100   33 48  
      USDA, FS, Shelterbelt Lab.,     80       10 100 4 55 81  
      Bottineau, ND     82       10 100 5 63 122  
            83       10 100 5 79 148 moderate rodent damage, best
            84       10 100 4 110 187 accession of larch
            87       9 90 2 214 334  
            92       9 90 2 316 534  
 
IB/04/1-5 ND-1763 PIPO* ponderosa pine 05/16 78 78 CONT 1-1 5 5 100 1 14 53  
  9006043   Pinus ponderosa     79       4 80   14 34  
      757-5 Todd Co., SD     80       5 100 4 46 61  
      USDA, FS, Shelterbelt Lab.,     82       4 80 7 74 134  
      Bottineau, ND     83       4 80 5 88 111 animal damage
            84       4 80 3 116 149  
            87       3 60 3 158 228  
            92       3 60 3 277 427  
 
IB/04/6-10 ND-1565 PIAR bristle cone pine 05/16 78 78 CONT 1-1 5 5 100 3 14 17  
  9006036   Pinus aristata     79       5 100   20 19  
      USDA, FS, Shelterbelt, Lab     80       5 100 5 32 23  
      Bottineau, ND     82       1 20 5 65 90  
            83       4 80 8 29 24 mower damage on plt 3
            84       2 40 3 58 55  
            87       2 40 6 70 62  
            92       1 20 5 165 120  
 
IB/05/1-5 9057413 PIPO ponderosa pine 05/11 88 88 CONT   5 2 40 4 10 33  
      Pinus ponderosa     89       2 40 4 20 42  
      Gelndive, MT     90       4 80 4 24 45  
      NDFS     92       4 80 4 38 66  
 
IB/05/6-10 9063127 FRAM white ash 05/15 92 92 PLBR   5 5 100 3 21 56  
      Fraxinus americana     93       5 100 4 33 73  
      Wisconsin                        
      Lincoln-Oakes Nursery, Bismarck, ND                        
 
IB/06/1-5 9069105 ULPU Siberian elm 06/10 93 93 CONT(P)   5 5 100 3 56 110  
  427   Ulmus pumila                        
      USDA, ARS, NGPRL, Mandan, ND                        
 
IB/06/6-10 9069106 ULPU Siberian elm 06/10 93 93 CONT (P)   5 5 100 4 30 56  
  11737   Ulmus pumila                        
      Harbin, China                        
      USDA, ARS, NGPRL, Mandan, ND                        
 
IB/07/1-5 9057412 QUMA bur oak 05/11 88 88 CONT   5 2 40 4 10 33  
      Quercus macrocarpa     89       3 60 7 7 35  
      Foster Co., ND NDFS     90       3 60 4 15 30  
            92       0 0       drought, did not establish
 
IB/07/1-5 9069107 ULPU Siberian elm 06/10 93 93 CONT(P)   5 4 80 4 35 55  
  408   Ulmus pumila                        
      USDA, ARS, NGPRL, Mandan, ND                        
 
IB/07/6-10 9063098 JUNI black wlanut 05/08 91 91 PLBR   5 4 80 5 8 36  
      Juglans nigra     92       2 40 5 20 48  
      Big Sioux Nursery, Watertwon, SD     93       2 40 4 45 75  
                               
 
IB/08/1-5 ND-3825 ACSA2 silver maple 05/01 83 83 PLBR   5            
  9034904   Acer saccharinum     84       5 100 5 8 39  
      Bismarck, ND     85       0          
            86       5 100 3      
            87       5 100 4 75 121  
            89       5 100 4 163 193  
            92       5 100 6 147 134  
                               
 
IB/08/6-10 ND-3886 ACSA2 silver maple 06/01 83 83 CONT   5            
  9003519   Acer saccharinum     84       4 80 4 43 101  
      Bismarck, ND     85       3 60 6 43 82  
            87       3 60 3 200 222  
            89       3 60 3 268 353  
            92       2 40 7 138 145  
 
IB/09/1-5 ND-3925 PRPE3 hardy peach 05/07 86 86 PLBR 2-0 5 2 40 3 70 68  
  9039998   Prunus persica     87       2 40   180 118  
      Meade Co., SD     88       2 40 5 140 145  
      USDA, SCS, PMC, Bismarck, ND     90       2 40   170 165 new sprouts
            92       2 40 7 152 160  
 
IB/09/6-10 ND-21 VILE nannyberry 05/07 86 86 PLBR 2-0 5 5 100 3 15 46  
  9034900   Viburnum lentago     87       5 100 3 21 58  
      USDA, ARS, Mandan, ND     88       5 100 3 45 82  
      USDA, SCS, PMC, Bismarck ,ND     90       5 100 3 82 115  
            92       5 100 3 129 144  
 
IB/10/1-5 9069081 TICO littleleaf linden 05/10 93 93 CONT (P)   5 5 100 5 21 39 WEEDY
      Tilia cordata                        
      Lee Nursery, Fertile, Mn                        
 
IB/10/6-10 Elsmo ULPA Chinese elm 05/09 90 90 CONT   5 5 100 5 21 39 weedy
  9004438   Ulmus parvifolia     91                  
      USDA, SCS, PMC,  Elsberry, MO     92                  
 
IB/10/6-10 9063123 ULJA80 Japanese elm 05/15 92 92 CONT(P)   5 3 60 4 53 52  
      Ulmus japonica                        
      Manchuria                        
      PFRA, Indianhead, Saskatchewan                        
 
II/01/1-10 ND-313 LOTAS* red tatarian honeysuckle 05/17 78 78 PLBR 2-0 10 9 90 1 47 48  
  9005996   Lonicera tatarica sibirica     79       9 90   62 72  
  PI-477999   USDA, ARS, Cheyenne, WY     80       10 100 3 98 73  
      USDA, SCS, PMC, Bismarck, ND     82       10 100 4 162 136  
            83       10 100 3 181 166 good fruit
            84       10 100 4 225 167 moderate-severe insect
            87       10 100 3 172 204 defoliation, honeysuckle aphid
            92       10 100 5 206 224  
 
II/01/11-20 ND-1730 LOTAS* red tatarian honeysuckle 05/17 78 78 PLBR 2-0 10 10 100 1 48 51  
  9005994   Lonicera tatarica sibirica     79       10 100   66 84  
      Lincoln-Oakes Nursery, Bismarck, ND     80       10 100 1 104 90  
            82       10 100 4 181 160  
            83       10 100 3 204 197 good vigor
            84       10 100 5 234 200 slight insect defoliation
            87       10 100 3 198 218 good fruit production,
            92       9 90 6 194 216 snow damage, aphid damage
 
II/02/1-10 ND-628 ELCO* silverberry 05/17 78 78 PLBR 2-0 10 10 100 1 29 52  
  9005877   Elaeagnus commutata     79       10 100   83 94  
      Wells Co., ND     80       10 100 1 124 97  
            82       10 100 5 151 145  
            83       10 100 5 192 170 suckering
            84       10 100 4 217 159 snow damage
            87       10 100 4 177 182  
            92       7 70 6 134 180  
 
II/02/11-20 'Bighorn' RHTR skunkbush sumac 05/17 78 78 PBLR 2-0 10 7 70 2 52 43  
  WY-843   Rhus trilobata     79       10 100   107 78  
  9004646   Bighorn Co., WY     80       10 100 3 152 82  
  PI-483445   USDA, SCS, PMC, Bismarck, ND     82       10 100 3 232 153  
            83       10 100 3 272 193 leaf spot, snow damage on 1,2,3
            84       10 100 3 350 185  
            87       10 100 2 360 224  
            92       10 100   260 240  
 
II/03/1-10 ND-26 LONIC honeysuckle 05/02 79 79 PLBR 2-0 10 10 100   35 42  
  9011852   Lonicera     80       10 100 5 60 51  
      USDA, ARS, Mandan, ND     81       10 100   79 87  
            83       10 100 4 136 145 leaf spot
            84       10 100 4 149 164 witches broom on pits 3,5,8
            88       10 100 4 230 213 moderate insect defoliation,
            93       10 100 5 320 274 grasshoppers, aphid damage
 
II/03/11-15 ND-452 LOXYM* honeysuckle 05/02 79 79 PLBR 2-0 5 5 100   37 39  
  9019978   Lonicera xylosteum mollis     80       5 100 3 71 47  
      USDA, ARS, Cheyenne, WY     81       5 100   99 88  
      USDA, SCS, PMC, Bismarck, ND     83       5 100 4 169 168 witches broom on 1,2,3
            84       5 100 3 198 168 slight leaf spot, leaf
            88       5 100 5 230 203 blight, aphid damage
            93       5 100 6 282 232  
 
II/03/16-20 ND-170 COIN cotoneaster 05/09 90 90 CONT   5            
  9005728   Cotoneaster integerrima     91       4 80 6 24 46  
      USDA, SCS, PMC, Bismarck, ND     92       4 80 6 46 42  
 
II/04/1-10 'Bighorn' RHTR skunkbush sumac 05/02 79 79 PLBR 2-0 10 10 100   30 34  
  WY-843   Rhus trilobata     80       10 100 5 73 43  
  9004646   Bighorn Co., WY     81       10 100   78 64  
  PI-483445   USDA, SCS, PMC, Bismarck, ND     83       10 100 3 181 137 few pests
            84       10 100 3 215 140  
            88       10 100 4 330 191  
            93       10 100 4 420 254  
 
II/04/11-20 PM-ND-283 PRTE80 Russian almond 05/08 80 80 PLBR 2-0 10 10 100 5 23 68  
  9006079   Prunus tenella     81       7 70   28 44  
  PI-540442   ND Game & Fish Dept.     82       10 100 4 54 69  
      USDA, SCS, PMC, Bismarck, ND     83       8 80 4 119 108 few pests
            84       10 100 4 115 112  
            86       9 90 4 159 136  
            88       9 90 3 182 142  
            89       9 90 4 127 146  
 
II/05/1-10 ND-11 LOMA6 amur honeysuckle 05/07 81 81 CONT 0-1 10 10 100   20 19  
  9005993   Lonicera maackii     82       10 100 4 42 44  
  PI-477998   Res. Sta., Morden, MB, Canada     83       6 60 6 50 54 slight insect
            84       10 100 4 64 56 defoliation (grasshoppers)
            86       10 100 4 127 139  
            87       10 100 3 260 170  
            88       10 100 4 225 172  
            90       10 100 4 173 174  
 
II/05/11-20 'Centennial 'COIN cotoneaster 05/08 85 85 PLBR 2-0 10           no data
  ND-177   Cotoneaster integerrima     86       8 80 4 69 68  
  9005729   Lincoln-Oakes Nursery, Bismarck, ND     87       7 70 3 121 100  
  PI-113095         88       10 100 4 99 90  
            89       8 80 4 137 106  
            91       7 70 5 161 130  
 
II/06/1-5 ND-995 SAHU prairie willow 05/12 82 82 PLBR 1-2 5 4 80 4 58 66  
  PI-303584   Salix humilis     83 CONT     4 80 4 155 125 moderate grasshopper damage
      P.I. Station, Ames, IA     84       5 100 4 192 124  
            86       5 100 3 315 245  
            88       5 100 4 390 285  
            91       3 60 8 187 183  
 
II/06/6-10 PI-370126 SAFR crack willow 05/12 82 82 PLBR- 0-1 5 5 100 4 33 48  
      Salix fragilis     83 CONT     4 80 3 106 133 good growth, few pests
      P.I. Station, Glenn Dale, MD     84       5 100 3 184 170  
            86       5 100   410 319  
            88       5 100 3 416 357  
            91       4 80 8 171 224  
 
II/07/1-10 ND-624 PTTR common hoptree 05/12 82 82 PLBR 2-0 10 9 90 5 24 33  
  9006094   Ptelea trifoliata Ramsey Co., ND     83       9 90 3 37 64 good growth
      USDA, SCS, PMC, Bismarck, ND     84       10 100 3 50 79  
            86       10 100 4 174 148  
            88       10 100 5 234 175  
            91       10 100 5 188 189  
 
II/08/1-5 'Indigo' COAM2 silky dogwood 06/01 83 83 PLBR   5            
  Mich-765   Cornus amomum     84       4 80 2 55 56  
  PI-468117   USDA, SCS, PMC, Rose Lake, MI     85       3 60 8 65 52  
            87       3 60 3 177 117  
            89       3 60 3 173 143  
            92       1 20 7 85 100  
            93       0 0     removed winter injury
 
II/08/1-5 9063142 PRUNU Japanese cherry 05/10 93 93 PLBR   5 5 100 4 37 62  
      Prunus                        
      Bottineau FEP, ND                        
      Lincoln-Oakes Nursery, Bismarck, ND                        
 
II/08/6-10 'Roselow' MASA* sargent crabapple 06/01 83 83 PLBR   5            
  Mich-1339   Malus sargentii     84       5 100 4 27 40  
  9005026   USDA, SCS, PMC, Rose Lake, MI     85       4 80 7 31 36  
            87       4 80 4 88 104  
            89       4 80 4 116 134  
            92       0 0       winter injury
 
II/09/1-10 'Homestead' CRAR Arnold hawthorn 05/09 84 84 CONT 0-2 10 10 100 4 20 10  
  ND-20   Crataegus arnoldiana     86       10 100 4 52 82  
  9005731   USDA, SCS, PMC, Bismarck, ND     88       10 100 3 117 146  
  PI-503530         90       10 100 4 122 182  
            93       9 90 3 190 270  
 
II/10/1-10 SD-131 PRPA5 mayday 05/08 85 85 PLBR 2-0 10           no data
  9006073   Prunus padus     86       10 100 3 46 85  
  PI-536048   Brookings Co., SD     87       10 100 3 70 142  
      USDA, SCS, PMC, Bismarck, ND     89       10 100 4 184 233  
            91       3 30 5 170 265  
 
III/01/1-5 'Midwest' MABAM8 Manchurian crabapple 05/17 78 78 PLBR 2-0 5 3 60 2 16 60  
  9006003   Malus baccata mandshurica     79       5 100   27 64  
  PI-478000   Echo Manchuria/Res. Sta.     80       5 100 3 58 85  
      Morden, MB, Canada     82       5 100 3 144 169  
      USDA, SCS, PMC, Bismarck, ND     83       5 100 2 183 211 fall webworm on 1, few
            84       5 100 4 236 260 pests, good vigor,
            87       5 100 3 288 347 snow damage on 1,2,3
            92       2 40 8 182 222  
 
III/01/6-10 'Red MABA* flowering crabapple 05/17 78 78 PLBR 2-0 5 5 100 2 48 66  
  Splendor'   Malus X     79       5 100   76 117  
  9006004   Lee Nursery, Fertile, MN     80       5 100 2 108 143  
            82       5 100 3 181 256  
            83       5 100 3 214 278 good growth, good

fruit production, few

pests, snow damage on 1,2;

fall webworm on 3,5

            84       5 100 3 262 333
            87       5 100 2 314 373
            92       5 100 6 283 341
 
III/02/1-5 ND-1731 MABA* Siberian crabapple 05/17 78 78 PLBR 2-0 5 4 80 2 58 68  
  9006001   Malus baccata     79       5 100   84 95  
      Lincoln-Oakes Nursery, Bismarck, ND     80       5 100 3 125 125  
            82       5 100 3 178 249  
            83       5 100 2 228 321 good growth & vigor, few pests, fall webworm on 1,4,5
            84       5 100 2 309 329
            87       5 100 3 323 424
            92       5 100 6 281 417
 
III/02/6-10 'McDermand' PYUS* Ussurian pear 05/17 78 78 PLBR 2-0 5 5 100 6 27 76  
  ND-14   Pyrus ussuriensis     79       5 100   56 111  
  9006095   Harbin, Manchuria/Res. Sta. Morden, MB, Canada     80       5 100 1 91 139  
  PI-478004       82       5 100 3 195 272  
      USDA, SCS, PMC, Bismarck, ND     83       5 100 1 243 335  
            84       5 100 2 282 377 good growth & vigor
            87       5 100   377 482  
            92       5 100 6 331 402 snow damage on 4
 
III/03/1-5 'Freedom' LOKO honeysuckle 05/09 90 90 PLBR   5 5 100 5 32 34  
  9057424   Lonicera korolkowii     91       5 100 4 44 50  
      Univ. of MN     92       5 100 3 101 94  
 
III/03/11-15 9008041 AMFR false indigo 05/06 87 87 PLBR   5 4 80   41 51  
      Amorpha fruticosa     88       5 100 5 84 64  
      USDA, SCS, PMC Aberdeen, ID     89       5 100 5 94 81  
            91       5 100 4 161 102  
            93       5 100 3 212 132  
 
III/03/16-20 9047236 AMFR false indigo 05/06 87 87 PLBR   5 4 80   35 54  
      Amorpha fruticosa     88       5 100 4 87 84  
      Lincoln-Oakes Nursery, Bismarck, ND     89       5 100 4 113 103  
            91       5 100 6 163 129  
            93       0 0       removed to make room for honeysuckle
 
93III/03/16-20 9069080 LOTA red tatarian honeysuckle 05/10 93 93 PLBR   5 5 100 4 26 35  
  Arnolds Red   Lonicera tatarica                        
      Lee Nursery, Fertile, MN                        
 
III/04/1-5 'Konza' RHAR aromatic sumac 05/06 87 87 PLBR   5 4 80   51 77  
  PI-477981   Rhus aromatica     88       4 80 3 105 95  
      USDA, SCS, PMC, Manhattan, KS     89       4 80 4 116 114  
            91       4 80 3 175 134  
            93       4 80 2 292 192  
 
III/04/6-15 'Scarlet' PRFR Mongolian cherry 05/09 90 90 PLBR   10 9 90 3 19 49  
  PI-478003   Prunus fruticosa     91       9 90 5 25 41  
      USDA, SCS, PMC, Bismarck, ND     92       9 90 4 40 52  
 
III/04/16-20 ND-83 SYVI late lilac 05/11 88 88 PLBR 2-0 5 2 40 6 30 53  
  9006228   Syringa villosa     89       2 40 6 13 33  
  PI-540443   USDA, SCS, PMC, Bismarck, ND     90       5 100 5 21 34  
      Lincoln-oakes Nursery, Bismarck, ND     92       3 60 4 57 58  
 
III/05/1-10 'Sakakawea' SHAR silver buffalberry 05/09 90 90 PLBR   10 3 30 3 22 68  
  ND-10   Shepherdia argentea     91       4 40 4 16 59  
  PI-478005   USDA, SCS, PMC, Bismarck, ND     92       8 80 4 28 53  
 
III/05/11-15 'Magenta' MALUS crabapple 05/15 92 92 PLBR   5 5 100 5 16 34  
  PI-514275   Malus     93       4 80 3 50 92  
      USDA, SCS, PMC, E. Langsing, MI                        
 
III/06/6-10 ND-1336 PRVI chokecherry 05/17 78 78 PLBR 2-0 5 5 100 2 28 74  
  9006088   Prunus virginiana     79       5 100   98 154  
      Mercer Co., ND     80       5 100 2 181 196  
            82       5 100 3 259 313  
            83       5 100 2 327 349  
            84       5 100 2 252 368 slight powdery mildew, good vigor
            87       5 100 2 401 441 webworm 1,2,4,5
            92       5 100 3 500 532  
 
III/07/1-5 ND-1732 PRVI chokecherry 05/17 78 78 PLBR 2-0 5 5 100 2 18 67  
  9006090   Prunus virginiana     79       5 100   77 141  
      Lincoln-Oakes Nursery, Bismarck, ND     80       5 100 3 112 169  
            82       5 100 4 247 293  
            83       5 100 4 317 331 fall webworm
            84       5 100 3 344 352 slight aphid damage
            87       5 100 4 514 405 shothole, leaf blight
            92       4 80 4 322 480  
 
III/07/6-10 'Schubert' PRVI chokecherry 05/17 78 78 PLBR 2-0 3 2 66 5 22 39  
  9012608   Prunus virginiana     79       2 66   20 30  
      USDA, ARS, Mandan, ND     80       2 66 7 53 75  
      Lincoln-Oakes Nursery, Bismarck, ND     82     5 5 100 6 116 169  
            83       5 100 5 145 198 slight fall webworm, webworm on 6,9,10
            84       5 100 4 171 275
            87       5 100 4 237 358  
            92       5 100 5 264 378  
 
III/08/1-5 ND-1134 PRAM plum 05/08 85 85 PLBR 2-0 5           no data
  9047203   Prunus americana     86       5 100 8 14 40  
      miller, SD     87       3 60 4 57 90  
      USDA, SCS, PMC, Bismarck, ND     89       3 60 5 107 125  
            91       2 40 4 200 173  
 
III/08/6-10 ND-629 ACGI amur maple 05/02 79 79 PLBR 2-0 5 5 100   31 47  
  9005645   Acer ginnala     80       0          
  PI-477992   Res. Sta., Morden, MB, Canada     81       4 80   39 58  
            83       4 80 3 184 183  
            84       4 80 4 301 229  
            88       4 80 4 395 328  
            93       3 60 5 400 367  
 
III/09/1-5 ND-1873 ACGI amur maple 05/02 79 79 PLBR 2-0 5 5 100   49 66  
  9005648   Acer ginnala     80       5 100 3 86 91  
      Lincoln-oakes Nursery, Bismarck, ND     81       5 100   128 132  
            83       5 100 2 220 227 good seed production
            84       5 100 3 305 267  
            88       5 100 4 402 358  
            93       5 100 4 306 302  
 
III/09/6-10 ND-686 SYAMJ* perkin lilac 05/02 79 79 PLBR 2-0 5 5 100   22 71  
  9006225   Syringa pekinensis     80       2 40 7 45 81  
  PI-478008   ND Game & Fish Dept.     81       2 40   47 85  
            83       3 60 5 102 117  
            84       5 100 5 93 87  
            88       3 60 4 252 253  
            93       3 60 4 307 303  
 
IV/01/1-5 SD-156 FRPE green ash 05/17 78 78 PLBR 2-0 5 5 100 1 16 79  
  9005890   Fraxinus pennsylvanica     79       5 100   39 111  
      Deuel Co., SD     80       5 100 2 68 134  
            82       5 100 3 171 232  
            83       5 100 3 221 296 slight leaf scorch
            84       5 100 3 245 328  
            87       5 100 3 262 432 snow damage on 1
            92       5 100 4 270 482  
 
IV/01/6-10 ND-1734 FRPE green ash 05/17 78 78 PLBR 2-0 5 5 100 2 11 63  
  9005891   Fraxinus pennsylvanica     79       5 100   31 95  
      Lincoln-Oakes Nursery, Bismarck, ND     80       5 100 4 57 113  
            82       5 100 4 143 222  
            83       5 100 4 173 268 competition from shelterbelt at north end
            84       5 100 4 195 313
            87       5 100 4 217 421  
            92       5 100 5 252 427  
 
IV/02/1-5 'Cardan' FRPE green ash 05/17 78 78 PLBR 2-0 5 5 100 2 9 71  
  MDN-12002   Fraxinus pennsylvanica     79       5 100   52 105  
  9005895   Wibaux Co., MT     80       5 100 3 91 154  
  PI-469226   USDA, ARS, Mandan, ND     82       5 100 3 228 308  
            83       5 100 2 255 348 good vigor
            84       5 100 3 298 420  
            87       5 100 3 289 552  
            92       5 100 3 332 685  
 
IV/02/6-10 ND-1759 FRPE green ash 05/17 78 78 PLBR 2-0 5 5 100 1 12 77  
  9005893   Fraxinus pennsylvanica     79       5 100   48 124  
      SD-156 X MDN-12002     80       5 100 3 93 158  
      USDA, SCS, PMC, Bismarck, ND     82       5 100 4 176 246  
            83       5 100 3 242 326 competition from shelterbelt at north end
            84       5 100 3 271 408
            87       5 100 3 275 481  
            92       5 100 3 312 580  
 
IV/03/1-5 ND-647 FRNI black ash 05/17 78 78 PLBR 2-0 5 5 100 1 4 28  
  9005887   Fraxinus nigra     79       5 100   13 58  
      Res. Sta., Morden, MB, Canada     80       5 100 6 37 83  
            82       5 100 4 126 243  
            83       5 100 4 147 319 heat stress
            84       5 100 4 127 347 leaf scorch
            87       5 100 3 171 562 sun scald
            92       5 100 7 170 463  
 
IV/03/6-10 ND-1432 AEGL Ohio buckeye 05/17 78 78 PLBR 2-0   5 3 60 8 1 7  
  9005658   Aesculus glabra     79       3 60   4 14  
      Res. Sta., Morden, MB, Canada     80       3 60 9 14 12  
            82       1 20 6 45 65  
            83       1 20 6 50 70  
            84       1 20 6 100 100  
            87       1 20 6 190 165  
            92       1 20 5 240 220  
 
IV/04/1-5 ND-1879 GLSI honeylocust 05/08 80 80 PLBR- 2-1 5 1 20 9 10 15  
  9011850   Glenditsia triacanthos     81 CONT     2 40   40 25  
  PI-503531   Woodward, OK     82       5 100 4 43 68  
      USDA, ARS, Mandan, ND     83       5 100 2 75 118 good vigor
            84       5 100 3 98 174  
            86       5 100 3 229 276  
            89       4 80 4 248 391  
 
IV/07/1-5 ND-541 ELAN Russian olive 05/17 78 78 PLBR 2-0 5 5 100 1 88 80  
  9005868   Elaeagnus angustifolia     79       5 100   185 166  
      Haakon Co., SD     80       5 100 4 251 236  
            82       5 100 3 390 360  
            83       5 100 3 479 476 good vigor and growth
            84       5 100 3 522 522  
            87       5 100 3 395 575  
 
IV/07/6-10 ND-1843 ELAN Russian olive 05/08 80 80 PLBR 2-0 5 5 100 5 45 47  
  9011840   Elaeagnus angustifolia     81       5 100   45 68  
      Res. Sta., Morden, MB, Canada     82       5 100 4 144 153  
            83       5 100 4 230 214 shelterbelt competition on south end
            84       5 100 4 317 254
            86       5 100 3 374 334  
 
IV/08/1-10 'Oahe' CEOC hackberry 05/08 80 80 PLBR 2-0 10 10 100   15 61  
  MDN-12003   Celtis occidentalis     81       9 90   2 14  
  9005725   USDA, ARS, Mandan, ND     82       8 80 6 40 48  
  PI-476982         83       8 80 6 57 92  
            84       7 70 4 89 139  
            86       4 40 3 279 313  
            89       5 50 4 264 357  
 
IV/09/1-10 SD-75 CEOC hackberry 05/07 81 81 PLBR 2-0 10 10 100   2 37  
  9005713   Celtis occidentalis     82       7 70 6 28 44  
      Potter Co., SD     83       6 60 3 87 92  
            84       7 70 5 106 124  
            85       6 60 4 204 181  
            87       7 70 4 247 317  
            90       7 70 4 280 374  
 
IV/10/1-5 ND-3890 ELAN Russian olive 06/01 83 83 PLBR   5            
  9035200   Elaeagnus angustifolia     84       5 100 4 73 91  
      Lawyer Nursery, Plains, MT     85       4 80 3 130 145  
            87       4 80 4 276 300  
 
IV/10/6-10 9057410 CEOC hackberry 05/11 88 88 CONT   5 2 40 8 5 5  
      Celtis occidentalis     89       1 20 8 5 15  
      Bottineau Co., ND     90       3 60 8 5 20  
      NDFS     92       4 80 7 14 15  

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