Thrips and TSWV in 2020 Peanut Notes No. 58 2020

— Written By

Update on Thrips Control and Tomato Spotted Wilt Virus in Peanuts

Rick Brandenburg, Extension Entomology Specialist

Department of Entomology and Plant Pathology, NCSU

What a dramatic difference a year makes. Last May was HOT! We saw Admire Pro and Velum Total outperformed by phorate and AgLogic under these hot conditions. This year it is cool and now wet. What is that going to mean for product performance? It’s too early to say. But I do know two things: 1.) the slow growing conditions can limit product uptake by the peanut plant and reduce the performance of all products, and 2.) the very mild winter may have increased thrips overwintering and the level of the tomato spotted wilt virus that was transmitted early among weed hosts. Once again time will tell and we do know that last year we saw an increase in plants that did not show symptoms (gosh, it sounds like COVID-19). The virus does appears to be creeping up a bit in recent years. This year may be an especially good year for that 3 weeks post application of acephate. I would not skip it this year.