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How to Manage Pests
UC Pest Management Guidelines
Grape
Pheromone Traps
(Reviewed 6/06,
updated 10/08)
In this Guideline:
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Set out pheromone
traps in vineyards to monitor the flights of omnivorous leafroller
or orange tortrix (coastal areas).
- Place traps in each vineyard for which
you need to make pest management decisions, using at least 2 traps per block.
- Distribute traps uniformly through the
vineyard. Use the same trap locations each year. Place additional traps in hot
spots.
- Hang traps in the shade inside the vines
and at least 15 vines from the end of the rows.
- Check
traps twice a week until the biofix is established; thereafter, check traps
weekly.
- Remove
trapped insects from the trap bottom after you count and record the trap catch
on the pheromone trap and degree-days monitoring form (example
form—.
- Replace trap bottoms monthly or when they
become covered with debris.
- Follow the manufacturer's recommendations
for replacing pheromone lures. Store lures in a refrigerator or freezer.
| Pest |
Where and when to set traps |
Biofix |
| omnivorous
leafroller |
Central Valley
and other warm inland valley vineyards—just before budbreak |
first night moths are caught consistently in traps |
| orange tortrix |
Coastal regions—late December |
when low catches are observed between late January through early February and again in early June |
IMPORTANT LINKS
![[UC Peer Reviewed]](/IMAGES/logo-ucpeerreviewed.jpg)
UC IPM Pest Management Guidelines: Grape
UC ANR Publication 3448
General Information
L. G. Varela (Crop Team Leader), UC IPM Program, Sonoma County
W. J. Bentley, UC IPM Program, Kearney Agricultural Research Center, Parlier
D. R. Haviland, UC IPM Program, Kern County
P. A. Phillips, UC IPM Program, Ventura County
R. J. Smith, UC Cooperative Extension Sonoma County
A. Shrestha, UC IPM Program, Kearney Agricultural Center, Parlier
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