Cotton Insect Report

Cotton plant maturity ranges from 9-14 true leaves. We began seeing blooms in a few fields. The fields with blooms had 6-7 nodes above white flower, which shows the effect of drought stress. The water demand of a crop increases significantly as bloom nears and fruit production begins. If we do not get rainfall soon, expect to see wilting cotton fields in the afternoons. Fortunately, we have not seen insect pressure requiring insecticide applications. Cotton fleahoppers have been difficult to find in most fields. Few fields have more… Read More →

Scouting Clinic Monday, 5/23, 8:30 am

A cotton scouting clinic will be held Monday, May 23, at 8:30 am on FM 1679 and Sanders Rd. 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.

Bean Thrips in Soybeans

We have not been finding many insect pests in Soybean fields so far this season but there are a few things to keep an eye on. Wednesday I found Bean Thrips (Caliothrips phaseoli) in low numbers of less than 1 per leaflet on the leaves of soybean plants. The top 2 pictures show minimal feeding injury along the leaf veins. Bean Thrips can be found on the lower half of the plant first, and will move up the plant as populations increase. They tend to be found on… Read More →

Sorghum Midge and Sugarcane Aphids

Grain sorghum across Refugio, Calhoun and Victoria Counties ranges from 4-5 leaf to bloom.  The two primary insects of concern this week for grain sorghum in the Mid-Coast of Texas are Sorghum Midge and Sugarcane Aphids. The Sugarcane Aphid can be found in Johnsongrass adjacent to sorghum fields, so the aphids may jump into the sorghum soon. Begin inspecting field margins and areas of the field with Johnsongrass present. Fields beginning to bloom should be inspected for Sorghum Midge. Begin scouting for midge soon after head emergence when… Read More →

Squaring Cotton and Drought

Most cotton fields are squaring so the cotton fleahopper is the primary pest of interest in these fields. I use an economic threshold of 15 cotton fleahoppers per 100 plants. Adults and nymphs count the same. The cotton fleahopper will feed on the soft plant parts in the terminal of the plant. They cause injury when they feed on small squares causing the square to be “blasted” and then abscise, or fall off the plant. Once a square is larger than a pin head, it is considered safe… Read More →