Tag Archives: armyworms

Texas A&M research seeks better understanding of fall armyworms

fall armyworm

A Texas A&M University graduate student received a research grant to better identify, understand and ultimately mitigate fall armyworm populations in Texas and the central United States. Ashley Tessnow, a doctoral candidate in the Texas A&M College of Agriculture and Life Sciences Department of Horticultural Sciences, said armyworms have long been a pest that agriculture producers throughout the central United ... Read More »

Don’t sweat the small stuff

fall armyworms on rice

Research finds rice can take more armyworm defoliation than previously thought without yield loss. • By Vicky Boyd, Editor • After two years of field and greenhouse studies, University of Arkansas entomologists say they feel confident about recommending against treating most fall armyworm infestations in rice. But they say they want one more year of data before they update the ... Read More »

U Ark entomologists work on new armyworm defoliation thresholds

fall armyworm

Severe defoliation in rice from a large flight of fall armyworms in 2016 led researchers with the University of Arkansas System Division of Agriculture to develop a new defoliation threshold, said Nick Bateman, assistant professor and crop entomologist. It is common to see fall armyworms, a defoliating caterpillar pest, in pastures and fields, he said. Defoliation is the removal of ... Read More »

Monitoring armyworms in rice helps reduce damage

california armyworms

Armyworms can be a serious pest in rice as the larvae can eat the rice leaves or panicles and cause yield reductions. In 2015, a severe outbreak of armyworms caught California rice growers by surprise, resulting in yield losses. In a 2018 survey conducted by University of California Cooperative Extension, rice growers reported average yield losses in 2015 ranging from ... Read More »

Delay nitrogen, delay yield

aerial fertilizer applicatioin

The hot, dry conditions of 2018 were the poster child for difficulty establishing a timely flood to incorporate nitrogen (N) fertilizer. To achieve consistently high yields, timely application and incorporation of preflood N is the most critical input in rice. Luck always helps, of course. The DD50 Rice Management Program (http://DD50.uaex.edu) is critical for timing preflood N. Originally developed to ... Read More »

Arkansas entomologists work to refine armyworm treatment thresholds

fall armyworms

Fall armyworms, a common pest of soybeans, pastures and lawns, have developed a taste for rice, and Extension entomologists are working on management methods to help producers. Gus Lorenz and Nick Bateman, Extension entomologists with the University of Arkansas, say answers to grower questions aren’t as simple as they’d like. “We’re starting to get a lot of phone calls about ... Read More »

Intrepid receives section 18 for California armyworms

armyworm sweep net

The California Department of Pesticide Regulation has granted a section 18 emergency use exemption for Intrepid 2F insecticide from DowDuPont to control armyworms in Butte, Colusa, Glenn, Merced, Sacramento, San Joaquin, Sutter, Yolo and Yuba counties. The registration comes just in time as armyworm numbers are beginning to pick up in Northern California rice fields. University of California Cooperative Extension ... Read More »