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Insect Thresholds of Mint
| Pest | Threshold | Reference | |
 |
mint aphid | 15 to 20 per sweep | UI CIS 773 (1993) |
 |
two-spotted spider mite | 5 mites per leaf in several areas of a field | UI CIS 773 (1993) |
 |
mint root borer | 1 larva in a new field (1-2 years old) | UI CIS 773 (1993) |
 |
cutworm
early season mid to late season |
1 per square foot in a new field, 5 per square foot in an established field 3 per sweep |
UI CIS 773 (1993) |
 |
loopers | 5 or more per sweep (at least 1/2 inch long) | UI CIS 773 (1993) |
Thresholds are not available for these pests: mint stem borer; false celery leaftier.
References: UI CIS 773 Insect control recommendations for mint production in Idaho.
Revised: August 12, 2008
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of Agriculture and Life Sciences, University of Idaho.
All rights reserved.