California Rice: Tadpole Shrimp – Getting a Handle on Pyrethroid Resistance Jan 7, 2020

🕔Jan 7, 2020
Want to help make sure your freshly planted rice fields don’t look like the muddied mess on the left below (vs. clear on right) following a pyrethroid application? Wondering if […]

Texas Plains Cotton: Plenty of Pests, PGR Decisions, Irrigation Needs Jul 17, 2018

🕔Jul 17, 2018
General Status Some beneficial rains did cross the area late last week and weekend with some minimal damage reported. These rains were welcome but far from filling our dry soil […]

Kentucky Wheat: Limit Pyrethroids to Avoid Aphid Resistance, Barley Yellow Dwarf Virus Outbreaks Apr 4, 2018

🕔Apr 4, 2018
In western Kentucky, wheat aphid monitoring has not detected the presence of this bug so far. This doesn’t mean that aphids are not in fields. They are out there at […]

Minnesota Soybeans: Pyrethroid Resistant Aphids – What Are Your Control Options? Jul 31, 2017

🕔Jul 31, 2017
We are receiving an increasing number of reports of pyrethroid insecticide failures for soybean aphid management from northwest and central Minnesota, and northeastern North Dakota this year. However, many areas […]

Minnesota Soybeans: Pyrethroids Failing to Control Soybean Aphids Jul 21, 2017

🕔Jul 21, 2017
By now you should be scouting your soybean fields for soybean aphid on a regular basis. Soybean aphid can be found in most fields throughout the state and populations have […]

South Dakota Soybeans: New Insecticide Labeled for Soybean Aphid Management Jul 18, 2017

🕔Jul 18, 2017
This year, soybean aphids have the potential to reach population densities that exceed the economic threshold of 250 aphids per plant. It is likely that insecticides will be applied to […]

Virginia: High Numbers of Brown Marmorated Stink Bugs; Corn Earworm Resistance at 46% Sep 9, 2016

🕔Sep 9, 2016
White sugarcane aphid, Melanaphis sacchari, in sorghum:  I did not receive any reports of this aphid being found in any new Virginia counties this week. Brown marmorated stink bug in […]

Virginia Soybeans: Corn Earworm Pyrethroid Resistance at 53% Sep 2, 2016

🕔Sep 2, 2016
This week the Virginia Tech Tidewater AREC entomology program evaluated 298 Helicoverpa zea (=corn earworm/bollworm) moths in the cypermethrin vial tests, with 53.1% surviving the 24-hour exposure to the 5 […]

North Carolina:: Bollworms/Earworms Showing Higher Pyrethroid Resistance Aug 8, 2016

🕔Aug 8, 2016
Reports have come in on spray failures in some limited spots of pyrethroids over soybeans and cotton for bollworm/earworm.  In addition, moths in both Georgia and Virginia have tested more […]

Minnesota Soybeans: Assessing, Reporting Potential Pyrethroid Resistance in Soybean Aphids Aug 2, 2016

🕔Aug 2, 2016
History has shown us many times that over-reliance on pesticides often results in development of pesticide resistance in pests. Last summer in parts of southern Minnesota, some pyrethroid insecticides (bifenthrin […]

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