HPIPM:Downy Mildew
Author: Howard F. Schwartz
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(Plasmopara nivea): yellow spots on upper surface and white mycelia on lower surface of leaves. Spots turn brown and leaves can be killed. Favored by cool, moist conditions. Other controls include crop rotation and old crop removal.
Product list for Downy Mildew:
| Pesticide
Common/Trade Name |
Product per acre | Application Frequency(days) | Remarks |
|---|---|---|---|
| Badge | 16-28 oz | 7-14 | |
| Basic copper sulfate | |||
| Tri-Basic Copper | 2-4 pt | 7-10 days | |
| Cuproxat | 2.6 pt | 7-14 days | |
| Copper sulfate | |||
| Top Cop + S | 2-4 pt | 7-10 days | (1 day to harvest.) |
| Copper oxide | |||
| Nordox | 2-4 lb | 7-14 days | |
| RRestricted use pesticide. 1Labeled for chemigation | |||
The information herein is supplied with the understanding that no discrimination is intended and that listing of commercial products, necessary to this guide, implies no endorsement by the authors or the Extension Services of Nebraska, Colorado, Wyoming or Montana. Criticism of products or equipment not listed is neither implied nor intended. Due to constantly changing labels, laws and regulations, the Extension Services can assume no liability for the suggested use of chemicals contained herein. Pesticides must be applied legally complying with all label directions and precautions on the pesticide container and any supplemental labeling and rules of state and federal pesticide regulatory agencies. State rules and regulations and special pesticide use allowances may vary from state to state: contact your State Department of Agriculture for the rules, regulations and allowances applicable in your state and locality.
