Crop & Pest Report
Halo Blight and Common Bacterial Blight both are both being frequently reported throughout the growing region this year. In most years, Common Blight is common, but Halo Blight is relatively rare. Halo Blight caused its greatest damage to edible beans when temperatures are in the high 60’s to low 70’s. Common Bacterial Blight causes more damage when temperatures are in the 80’s.
The cause of the Irish potato famine, late blight (Phytophthora infestans) is rearing its ugly self again this year. Late blight is a serious disease, because it can devastate potato and tomato fields in a matter of days. Many potato growing states and provinces have identified late blight this year, however it has not been found in North Dakota.
Some of the common diseases that affect sugarbeet include Cercospora leaf spot, Fusarium, Rhizomania, and Rhizoctonia crown and root rot.
Winter wheat can be a viable crop in today’s cropping systems. It is usually planted and harvested during periods that do not compete with other farm activities, has high yield potential and can be an excellent option for land that was not planted this spring if properly managed.
The annual sunflower survey training will take place on Thursday September 5, 2013, starting at 12:30 and ending at 3:45 p.m. The event will be at the NDSU Carrington Research Extension Center, 663 Hwy 281 N, Carrington, ND.
WASHINGTON – In an ongoing effort to protect bees and other pollinators, the U.S. Environmental Protection Agency (EPA) has developed new pesticide labels that prohibit use of some neonicotinoid pesticide products where bees are present.
The new generation of adult flea beetles is emerging and feeding on developing pods of canola. This is the overwintering generation that will emerge next spring.
Sap beetles (or picnic beetles) have been observed feeding and damaging corn ears. One of the most common sap beetles is Glischrochilus quadrisignatus, which is ¼ inch long, black with four orange-red spots on the wing covers and has “knobbed” antennae. Adult sap beetles feed on decaying, ripening plant material.
This time of year, adult grasshoppers start to move around and feed on late-season row crops, such as sunflowers, corn, dry beans, soybeans or flax.
Continue scouting for soybean aphids and spider mites in soybeans.
Black blister beetles (Epicauta pensylvanica) were observed damaging blossoms and clipping stems of alfalfa regrowth (after cuttings) in McIntosh County. As long as the blister beetles are not feeding directly on the crowns and destroying >50% of crowns, the alfalfa should be able to compensate next spring for loss growth.
Maps detailing corn accumulated daily growing days, percent normal rainfall, departure from normal average air temperature, and accumulated wheat growing degree days.
Information from the Southwest region of North Dakota.
Information from the South-Central region of North Dakota.
BASF currently has an approved label for Sharpen herbicide as a harvest-aid application to dry beans, however, the MRL's (Maximum Residue Levels) have not been cleared for all countries.
Weather in the state has generally been conducive to rust infection and spread, and I have received a good number of questions about rusts on several crops. Below is general information about rusts, followed by specific information to several rust diseases that you may be thinking about. I am not discussing cereal rusts because much of those crops are mature.
Wet field conditions in April delayed sugarbeet planting by about two weeks. Typically, all things being equal, later plantings result in lower yields than earlier plantings.
The recent period of cooler than normal weather has heightened concerns that this year’s corn crop may not mature before the first killing frost.
Every year, in the fall, NDSU helps to coordinate the National Sunflower Association Sunflower Field Survey. Over the last years it became clear that uneven sunflower plant distribution in the field was a major yield limiting factor.
Seed potato plants exposed to low levels of glyphosate can cause significant damage to the seed the following year.