Canola and Mustard XVI-9
Blister Beetles
Sue Blodgett & Greg Johnson
Blister beetle adult.
Identification (Life Cycle/Seasonal History)
Two species of blister beetle Lytta nuttalli and L. cyanipennis have been observed feed on reproductive portions of the canola plant. L. nuttalli is often found feeding on caragana hedges and fields bordering caragana may be more prone to blister beetle problems.
Management
Treatment may be justified when there are 10 blister beetles per plant, feeding on flowers or pods.
Pesticide |
Product/Acre |
Preharvest Interval, Remarks |
|
Pyrethrins1 |
2 – 16 oz (Evergreen EC 60-6) 4.5 – 18 oz (Pyganic EC 5.0) |
0 Day, 12 hr REI . No less than 2 GPA by air or 10 GPA by ground. Buffer spray to pH 5.5 – 7.0. |
|
1 Label
allows chemigation, |
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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. |
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Categories: Canola, Mustard, Insects, Blister beetles, Caragana
Date: 06/06/2006