Influence of Thimet® 20G On Thrips Management and Cotton Yield

Early season insect control, particularly thrips, is a key component to establishing an adequate plant stand and initiating healthy cotton plants.  Seed treatments and at planting, in-furrow insecticides, such as Thimet^® 20G (phorate) and Temik 15G (aldicarb), are utilized as the first step in managing thrips in cotton. With the loss of Temik and moderate efficacy of seed treatment insecticides, farmers, crop advisors, and Extension entomologists have inquired about the performance of Thimet against early-season thrips.

In 2011, a regional study was initiated to examine the effects of Thimet on early-season thrips management.  Field trials were conducted by a University or Extension scientists located in AL, GA, SC, and VA.  Measurements focused on plant stand, adult and immature thrips counts, plant damage ratings, and yield.  Findings are reported.