CW Podcast: Late-Maturing Crops and Insects
September 13, 2019
In this month’s CropWatch Podcast Extension Educator Michael Sindelar is joined by entomologist Robert Wright to discuss insect issues in late maturing corn and soybeans.
Western Corn Rootworm Beetles Emerging, Time to Scout
July 9, 2019
Western corn rootworm beetles began emerging in southeast and south central Nebraska and will feed on corn leaves until silks, their favored food, emerge. Beetles will emerge somewhat later in northeast and western Nebraska.
Using Degree-Day Models to Predict Western Bean Cutworm Flights
June 21, 2019
With late planting, slow emergence, and cooler summer temperatures affecting corn development, will corn be spared from western bean cutworm damage in 2019. Unfortunately, models indicate WBC growth is also delayed. See a table of predicted dates for 2019 WBC flights in Nebraska and surrounding states.
First ECB Resistance to Bt Corn Reported in Canada
May 22, 2019
The first case of field-evolved resistance of European corn borer (ECB) to Bt transgenic corn has been reported in Canada. What does this mean for Nebraska corn farmers and how can they help maintain resistance here?
Avoiding Injury from Seed Corn Maggot
April 26, 2019
A new pest management resource for the seed corn maggot predicts fly development based on accumulated growing degree days. A new map, updated daily, shows degree days at multiple sites.
Experiments Underscore Overlooked Aspect of Defending Corn from Pest
March 4, 2019
Spraying a corn plant with one of its own compounds — 12-oxo-phytodienoic acid, or OPDA — can help deter the virus-carrying, pollination-disrupting insect known as the corn-leaf aphid.
The Biology and Management of Ear-Feeding Lepidopteran Pests of Corn in Nebraska
January 9, 2019
A guide to Identification and management of European corn borer (Ostrinia nubilalis), western bean cutworm (Striacosta albicosta), corn earworm (Helicoverpa zea), and fall armyworm (Spodoptera frugiperda).
Western Corn Rootworm Beetles Emerging, Time to Scout
June 27, 2018
Corn rootworm beetles started emerging in southeast and south central Nebraska and scouting is recommended. An average of 5-10 beetles per ear usually can seriously affect pollination.