This large worm (or larva) about 2 inches long was found tunneling into the heartwood of an old ash tree near Minot, ND.
Cutworms are still being reported causing damage in winter wheat, spring wheat, and field peas in NW and SW North Dakota, and NE Montana.
Our first cereal aphids, English grain aphids and bird cherry oat aphids were detected in wheat last week in Cass and Richland counties in southeast North Dakota.
The early start to field preparation this spring likely resulted in some sugarbeet seed being planted into cool soils.
A few questions have come into the office on what these large mosquito-like insects are!
These revised crop insect pest publications summarize the Integrated Pest Management practices for that insect, including identification, life cycle, crop damage, pest monitoring, cultural control, host plant resistance, biological control and chemical control.
This table summarizes the transgenic traits that are available in corn for insects and weed management.
Army cutworm and pale western cutworm have been reported feeding on winter wheat and weedy cultivated fields in NW and SW North Dakota.
With some of last year's grain crop still in storage and a bumper crop expected this year, the demand for grain storage is high.
Soybean aphids are decreasing or stagnant in most soybean fields. You can see this in the final soybean aphid map (below) from the IPM scouting program.
This article is worth repeating - the importance of getting bins ready for grain storage to minimize insect pest problems in bins (2013 Crop & Pest Report).
This week’s Good Bug Corner features several good bugs and fungal pathogens.
Banded sunflower moth traps continue to have high trap counts, >100 moth per trap per week, in most sunflower producing areas.
This week’s Good Bug Corner featured insects are the Tachinid flies in the insect family Tachinidae. The adult fly feeds on nectar of flowers and honeydew from aphids or scale insects.
Several emails and calls about lodged wheat from Hessian fly infestations have been reported in primarily Pembina and Williams counties.
Soybean aphids increased with the favorable temperatures in the low 80s F last week. However, the recent hot weather (>90 F), will slow population growth.
I’ve received many calls and emails about all of the white butterflies flying around ditches, canola, alfalfa and other areas and whether they are an insect pest.
Northern and western corn rootworm adults were observed in field corn near Page, northern Cass County. The adult northern corn rootworm is green beetle and about ¼ inch long.
Banded sunflower moth peaked last week with our highest trap numbers recorded yet for the season. Sunflower moth also increased, but numbers are still below the economic threshold for traps.
This week’s Good Bug Corner featured insects are the Rove Beetles in the insect family Staphylinidae.