– David Owens, Extension Entomologist; owensd@udel.edu
Insecticide Update
The following insecticides and seed treatments have been voluntarily removed by the registrants: Meridian 0.20G, Meridian 0.14G, Avicta Complete Corn 500, THX MXM FDL TBZ FS, Adage Deluxe, Adage Premier, Emesto Quantum, V-10170, Inovate Seed Protectant, Inovate Neutral Seed Protectant, Aloft GC, and Flower, Rose&Shrub Care III. More information can be found here: https://www.federalregister.gov/documents/2019/05/20/2019-10447/product-cancellation-order-for-certain-pesticide-registrations.
Early Season Moth Activity
| Trap Location | True Armyworm per night | Black Cutworm per night |
| Willards, MD | 0.1 | 0.1 |
| Salisbury, MD | 0 | 0.4 |
| Laurel, DE | 0 | 3.3 |
| Seaford, DE | 0.4 | 0.4 |
| Bridgeville, DE | 0 | — |
| Harrington, DE | 0.1 | 0.7 |
| Smyrna, DE | 0.3 | 2.3 |
| Kenton, DE | 0 | 0.3 |
| Pearson’s Corner, DE | 0.1 | 0 |
| Sudlersville, MD | — | 0.7 |
We have had lower armyworm activity in our blacklights this year compared to last, however you should still look to make sure that you don’t have a population that is clipping heads. If you have significant head clipping, worms are active, and smaller than an inch, you may want to consider an insecticide. Pay attention to pre harvest intervals, as most pyrethroids have a 30 day PHI. Mustang has a 14 day PHI, and Prevathon has a 1 day PHI.