| Disease | Chemical and Formulation | Rate per Acre | Remarks |
| Black
rot Phomopsis cane and leaf spot Downy mildew |
captan 50WP or equivalent OR mancozeb 80WP or DF OR Ziram |
2 lb 2 lb 2.0-4.0 lb |
Important to apply 2 applications starting at 1/2 inch to 1 inch shoot length where black rot or Phomopsis has been a problem. Add a surfactant to improve wetting of pubescent young growth. |
| Powdery mildew | wettable sulfur (81.25% or 92%) OR Rubigan EC |
2 lb 2-3 oz |
Where powdery mildew has been a severe problem. Do not make sulfur applications within two weeks of an oil spray. Do not use sulfur prior to or during periods of excessively high temperatures. Do not apply sulfur to Concord, red-fruited French-American hybrids, and other sulfur sensitive varieties. |
| Anthracnose | copper fungicides with lime | see label | Apply at 4-10 inch shoot length. Repeat at 10-14 day intervals. Only necessary where anthracnose has been a problem. |
GRAPE NEW SHOOT SPRAY
| Insects/Mites | Chemical and Formulation | Rate per Acre | Remarks |
| Grape cane girdler | Imidan 70WP OR Danitol 2.4EC OR Baythroid 2EC |
2 lb 10 fl oz 2.4-3.2 fl oz |
When shoots are 4-6 inches long, where infesting more than 10% of shoots. Mainly a problem when training young vines. The REI for Imidan may render it impractical for most growers. See Table for REI and PHI information. |
| Redbanded leafroller (RBLR) | SpinTor 2SC OR Entrust 80WP OR Intrepid 2F OR Imidan 70WP OR Sevin XLR OR Bacillus thuringiensis (Bt) |
4.0-8.0 fl oz 1.25-2.5 oz 12.0-16.0 fl oz 2 lb 2 qt rates very |
Where pest has been a problem in the past. The REI for Imidan may render it impractical for most growers. See Table for REI and PHI information. |
| Climbing cutworms | Bacillus thuringiensis (Bt) OR Sevin XLR OR Danitol 2.4EC OR Baythroid 2EC OR Brigade 2EC OR Intrepid 2F OR SpinTor 2SC OR Entrust 80WP OR Altacor 35WDG OR Belt 4SC OR Sniper 2 |
Rates vary 2.0 qt 15 fl oz 2.4-3.2 fl oz 3.2-6.4 fl oz 12.0-16.0 fl oz 8.0 fl oz 2.5 oz 3.0-4.5 oz 3.0-4.0 fl oz 3.2-6.4 fl oz |
Spray in evening if possible. Various preparations of Bt available. Check label for rates. |
| Periodical
cicada |
Danitol 2.4EC OR Lannate SP |
10 fl oz 0.5-1 lb |
| Virginia Apple Page | Virginia Pear Page | Virginia Peach Page | Virginia Vineyard Page | Virginia Fruit Homepage | Mid-Atlantic Regional Fruit Loop |
|---|
Web Site Author: Douglas G. Pfeiffer