Crop & Pest Report

Accessibility


| Share

Pulse Crop Disease Scouting Summary (08/30/18)

NDSU pulse crop scouts (WREC: Shawn Postovit, NCREC: Graysyn Kitts) surveyed field pea, lentil and chickpea fields in northwest and north central North Dakota for diseases from late May until early August. Regular rainfall during the growing season led to environmental conditions suitable for disease development in all three crops.

Pulse Crop Disease Scouting Summary

NDSU pulse crop scouts (WREC: Shawn Postovit, NCREC: Graysyn Kitts) surveyed field pea, lentil and chickpea fields in northwest and north central North Dakota for diseases from late May until early August. Regular rainfall during the growing season led to environmental conditions suitable for disease development in all three crops.

Anthracnose and white mold were the primary foliar diseases observed in lentils this growing season. Anthracnose onset was in mid-July when the fields scouted were at the early pod growth stage. Incidence of diseased plants reached up to 18% in some fields (Figure 1). White mold was present in 60% of fields scouted from mid-July to early August with incidence ranging from 1-26% (Figure 1).

kalil.1

Bacterial blight symptoms were observed in field pea beginning in early June when the crop was at late vegetative to early reproductive growth stages. Incidence reached 40-50% in some fields (Figure 2) with 2-18% of the crop canopy exhibiting symptoms. White mold was not observed in pea fields.

kalil.2

Onset of Ascochyta blight in chickpea was in mid-June, when the crop was at mid to late vegetative growth stages. Fields varied greatly in incidence and severity of Ascochyta symptoms (Figure 3). In some fields, the percent of plants showing symptoms stayed below 4% throughout the survey, while in others incidence reached 100% by mid-July. The differences observed among fields were most likely due to the amount of the fungal pathogen present in fields (inoculum), rainfall and fungicide application timing.

kalil.3

Thank You to all the producers who participated in the pulse crop scouting effort!

 

The Northern Pulse Growers Association funded this work.

 

Audrey Kalil

Plant Pathologist

NDSU Williston Research Extension Center

This site is supported in part by the Crop Protection and Pest Management Program [grant no. 2017-70006-27144/accession 1013592] from the USDA National Institute of Food and Agriculture. Any opinions, findings, conclusions, or recommendations expressed are those of the website author(s) and do not necessarily reflect the view of the U.S. Department of Agriculture.

USDA logo

Creative Commons License
Feel free to use and share this content, but please do so under the conditions of our Creative Commons license and our Rules for Use. Thanks.