The short answer to this question is yes for the vast majority of fields! Terminating insecticide application is always a tough call and even harder this year because so many fields are late Continue reading
Soybean insect pressure continues to be pretty mild, with insecticide application mostly being applied for stink bugs. Below are some comments on what to expect during the next several weeks. As corn harvest begins, don’t forget that this is the same window where insect infestations are most likely. Continue reading
I’ve had a request to do a running total of DD60 accumulations beginning August 15th. As much of our crop did not reach cutout (NAWF=5) by August 15th, this becomes our default last effective bloom date Continue reading
Cotton: There are now a few mentions of bollworms being found in some cotton fields, although there have been no reports of high infestation levels. The suggested treatment threshold is 4 “surviving” larvae per 100 plants on Bt cotton fields. Typically, we do not Continue reading
Crop Maturity Based Insecticide Termination Rules. For a normally maturing crop, the standard suggestion is to terminate insecticide applications for plant bugs, stink bugs and bollworm at NAWF5 + 350 DD60s. The reality is Continue reading
I’m harping on the same subject, but virtually the only question I am receiving is “what should I spray next for plant bugs in cotton”? Granted, there are stink bugs in the system also, but these are more easily controlled and Continue reading
We’ve done a lot of insecticide evaluation in the last two weeks, and the common theme is that our traditionally best treatments are still providing good control. Treatments of Bidrin (6-8 oz), Acephate/Orthene (0.75 lb), Transform (1.5 oz) are top performers (providing closer to 75-80% control). Other top performers are Continue reading
I’m expecting our corn earworm (bollworm) flight to start kicking off this week. Given the fair amount of late planted soybean in the state, we need to be alert for infestations in soybean during August. Normally, our worst infestations Continue reading