All posts by Scott Stewart, West TN Research & Education Center

Bean Leaf Beetles in Soybean … And More

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I’ve had several calls from the Mississippi River Bottoms and the southern counties of West Tennessee about high numbers of bean leaf beetles, sometimes as many as 200-400 per 100 sweeps.  Bean leaf beetle feed primarily on foliage in the upper part of the canopy. They occasionally will feed on pods, although this occurs rarely and is hard to predict. Continue reading


Cotton – fall armyworm, bollworm, and plant bugs

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Many fields are now well at or past cutout (< NAWF5), and some folks have made or are planning on their last insecticide spray. I wrote last week on the topic of terminating insecticide applications, for plant bugs in particular. Below are a few other points for consideration. Continue reading


Some Soybean Insect Pests – Identification and Management

Although insect pests don’t require treatment on all soybean acres, there are some common pests we need to scout and manage for on a routine basis. The most serious pests typically infest soybean after pods have begun to develop, and in many cases, the threat of insect infestations are worse in later maturing fields. However, soybeans should be scouted weekly for the presence of insect pests until full seed (R6) plus another 10 days. Continue reading


Plant Bugs and Cutout – When to Relax

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Reports are variable but many are seeing a large increase in the numbers of tarnished plant bugs in cotton, especially nymphs. It is disheartening when populations actually increase 5-7 days after an application was made, but this doesn’t generally indicate a insecticide failure. For example, we rated a test Continue reading


Spider Mites and Plant Bugs in Cotton

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It’s shaping up to be a busy year managing plant bugs, but I’m also seeing and hearing about spider mites in some fields. I’ve previously discussed insecticide selection for plant bugs (see linked articles below). Now that almost all of the cotton is blooming, you should begin focusing on immature plant bugs when you sample. I prefer using Continue reading