Tag Archives: Cotton

Cotton Jassid Concern for Cotton Production in 2026

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We may have a new insect pest to manage in cotton fields next year (2026). The Cotton Jassid, Amrasca biguttula Ishida (also known as the two-spot cotton leafhopper) was found in hibiscus plants in big box store nurseries across the state in the past month. There has also been a probable detection in a cotton field in Wharton County, but this is awaiting confirmation. Hopefully this insect will not become established in Texas, but it is best to be aware and prepared for the possibility. Adult cotton jassids… Read More →

Bollworms in Cotton 6-30-25

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Today we are finding cotton bollworms in some cotton fields of Calhoun County.  The cotton fields with the worms are planted with 2-gene Bt cotton varieties. We have a Bt overspray test containing 4 Bt varieties and a non-Bt variety. We plan to count worms and worm feeding damage in this test tomorrow and will update this post when the data is analyzed. When scouting cotton for worms it is important to check plant terminals, squares, blooms and bolls for worm feeding. The published Economic Threshold for worms… Read More →

Cotton IPM Update 5-30-25

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Cotton Maturity ranges from squaring to bloom.  We are still finding fleahoppers in some fields. In fact our insecticide test had mostly of adult cotton fleahoppers and some Verde Plant bugs this morning before the rain.  The treated plots had very few nymphs but the untreated cotton had adults and nymphs at a 1:1 ratio. We are seeing control with all of the products at 7 days after treatment, but the nymph counts for Bidrin was was not different from the untreated nymph counts. Once you find 1… Read More →

Cotton IPM Update 5/25/25

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Cotton maturity ranges from early bloom to pinhead square. Squaring cotton should still be monitored for cotton fleahoppers.  Once cotton begins to bloom, we tend to consider the field safe from cotton fleahopper.  The field can be considered safe if fruit retention is sufficiently high to meet its expected yield potential.  The reason I think the field is safe is cotton fleahoppers cause fruit shed to small squares, pinhead sized or smaller and the plants should have enough fruit matchhead square or older. When the crop begins to… Read More →

Field Meetings and Crop Tours

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Cotton Scouting Clinic – June 19 Time: 9 am. Location: Cotton field east of Port Lavaca on FM 1979, just SW of Sanders Rd. (Look for the Texas A&M AgriLife Truck) At this clinic we will discuss the current cotton growing conditions and the insect pests we expect to find and how to scout for them.   Crop Tours will be held in June.  The schedule will be as follows: June 11 Austwell Crop Tour, Morning tour beginning at the Austwell Community Center Bonnieview Crop Tour, Afternoon tour… Read More →