FROM AROUND THE STATE
ISSUE 2 May 11, 2000
CRUCIFER FLEA BEETLE ACTIVITY DECREASED WITH COOL TEMPERATURES AND RAINY WEATHER.
Flea beetles have been attacking both dormant and spring planted
canola. A small number of
fields (<10%) have been sprayed for flea beetles in the NC Region. With the cool forecast, flea
beetle pressures should continue to be low, and the canola plants will have favorable growing conditions!
SOIL INSECTS CONTINUE TO BE ACTIVE WIREWORMS AND CUTWORMS!
No specific crop is being targeted - canola, flax, small grains
what ever is planted. In most cases,
fields being attacked have had high densities of pests and have required a treatment to prevent crop
ORANGE WHEAT BLOSSOM MIDGE THE HIGH RISK PLANTING WINDOW (200 -600 DEGREE DAYS) CONTINUES FOR THE NORTH CENTRAL REGION.
Growers from the "hot" spot (>1,000 midge cocoons per
square meter) in Divide County
have indicated that they are delaying the planting of wheat/durum, until the 600 degree day mark
has passed. The following insect degree days (DD), using 40"F Base, have been accumulated as
of May 9, 2000: Rollette Co., Rolla = 318, Burke Co., Columbus = 334, Bottineau Co.,
Bottineau =343, McHenry Co., Towner = 356; Renville Co., Mohall = 359, McLean Co.,
Turtle Lake = 389, Ward Co., Minot = 405, and Williams Co., Williston = 432 (Source: NDAWN).
NO DISEASES WERE OBSERVED ON ANY WINTER WHEAT OR SPRING PLANTED SMALL GRAINS.
Janet J. Knodel
Area Extension Specialist Crop Protection
North central Research and Extension Center
Total rainfall as recorded at NDAWN sites in south-central ND during
May 3-10 ranged from
0.09 inches at McHenry to 1.10 inches at Oakes. Soil conditions generally are satisfactory, although
eastern Eddy County currently is dry and portions of Dickey, Ransom, and Sargent counties are wet.
Excellent planting progress was made during the past week. Most
small grain, cool-season legume
and oilseed acres have been planted. Corn planting is near completion in the south-east and substantial
acres planted in the balance of this region. Soybean planting is up to 50% complete in the south-east.
In other areas of this region, soybean and sunflower planting is beginning and will be a general field
practice next week. Dry bean planting also will begin next week throughout the region.
The regions alfalfa and winter cereal crops generally look
excellent. Leafspot disease is expected
in winter and spring wheat grown on stubble due to the recent rains. Dormant-seeded canola stands
are variable and generally very poor. Emerged spring-seeded crops generally are at optimum condition
and plant densities. Wild oat control is a common field activity in established crops. The most common
insect problem of economic importance is flea beetle in canola.
Area Extension Specialist/Cropping Systems
NDSU Carrington Research Extension Center
Rainfall last week varied from .1" in northern
Nelson and parts of Walsh counties to 1.5" in two streaks
in Benson , Towner and Ramsey counties. Most areas received enough moisture to rewet seedbeds.
Crops are beginning to emerge with few problems. Flea beetles continue to infest fields in Benson county.
Seeding progress has been good and expect that most of the Canola,
Flax, and small grains will be
seeded buy May 13. Preparations for seeding Sunflower, Drybeans, and Soybeans is underway with
some Sunflower plantings occurring this week.
Most of our common weeds have started emerging with wild oat the
major concern The warm season
grass weeds like green and yellow foxtail have also begin to emerge.
Winter wheat looks good with most stands starting to joint around
May 10. Dormant seeded
Canola plantings have erratic survival and many will be reseeded.
Area Extension Specialist/Cropping