Crop & Pest Report

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Northeast ND (07/13/17)

Information from the Northeast region of North Dakota.

Stripe rust is observed in selected barley and spring wheat fields.  Confirmed reports are from Pembina and Ramsey Counties.  Many small grains fields have received fungicide applications in the last week which are also effective against stripe rust infection.  Those with a late seeded wheat should continue to scout.  Looking at NDSU scab forecast models, many northeast locations have been estimating low risk for the past week with exception of moderate to high risk around the 4th of July in Cavalier, Pembina, Walsh, Nelson and Grand Forks locations for varieties with susceptibility.  For head damage in small grains, I’ve observed a minute amount of wheat stem maggot, root rot and loose smut.  Wheat midge DD’s have reached 50% emergence this week along the northern tier counties; which means wheat growth has outpaced damage window in most cases.

The NDSU sclerotinia risk map is estimating moderate to high risk for the entire northeast.  Many fields of canola received fungicide treatment in the last 10 days. Dry beans are gearing up for flowering.  I am commonly asked if I have seen apothecia.  At the LREC, we have not.  It’s been fairly dry here until yesterday (Wednesday) for the past four weeks; however, we have had some heavy morning dews.   

Lesley Lubenow

Area Extension Specialist/Agronomy

NDSU Langdon Research Extension Center

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