Webworms are slender, greenish-black, spotted caterpillars with three dark spots on the side of each segment and a light stripe running down the middle of the back. Control is rarely needed, but webworms may be destructive in last cuttings during drought conditions. When this pest is present, early harvest will often eliminate the problem. However, if the crop is more than 2 weeks from cutting and 25 to 30 percent of the terminals are webbed, treatment is suggested. Use sufficient gallonage and pressure to thoroughly cover and penetrate the foliage.
You are viewing records 1 - 5 of 5.| Insecticide and formulation | Rate of active ingredient per acre | Rate of formulation per acre | Time lmits: Days before harvest | Remarks |
|---|---|---|---|---|
| lambdacyhalothrin (Lambda-Cy 1EC) |
0.015-0.025 lb | 1.92-3.2 oz | 1 for forage, 7 for hay | Restricted Use: |
| lambdacyhalothrin (Warrior II) |
0.015-0.025 lb | 0.96-1.60 oz | 1 for forage, 7 for hay | Restricted Use: |
| beta-cyfluthrin (Baythroid XL) |
0.0125-0.022 lb | 1.6-2.8 pt | 7 | Restricted Use: |
| zeta-cypermethrin (Mustang MAX 0.8EC) |
0.014-0.025 lb | 2.24-4.0 oz | 3 days for cutting or grazing | Restricted Use: |
| gamma-cyhalothrin (Proaxis) |
0.0075-0.0125 lb | 1.92-3.20 oz | 1 for forage, 7 for hay | Restricted Use: |
