Like A Bug!
Daviess County Vegetable Growers
Benefit From Using Pheromone Traps and Scouting
These were just a few of the benefits mentioned by vegetable growers who
participated in the Daviess County "Pheromone Trapping for Horticultural
Pests" field demonstration.
- Reduced insecticide input by one-fourth.
- Improved quality of fresh market yellow summer squash.
- Less sweet corn loss after displaying for sale.
Under the supervision of Dr. Annette Meyer, Daviess County Extension
Agent for Horticulture, and Dr. Ric Bessin, Extension Entomologist,
vegetable growers were given the opportunity to participate in a field
demonstration using pheromone traps and field scouting. Pheromone traps
for squash vine borer, diamondback moth, beet armyworm, and corn earworm
were used. Six growers participated in the program and a total of 15.6
acres was scouted including sweet corn, cabbage, broccoli, pumpkins
Monitoring for beet armyworm and diamondback moth in cabbage and broccoli
helped growers learn when
to apply an insecticide for the best control of the larvae. The diamondback
moth pheromone wing traps helped to alert growers to carefully scout
the fields. One grower reduced his insecticide usage on cabbage and
broccoli by 25%.
One producer found that he was able to improve the quality of his fresh
market squash, which resulted in an 18% increase in production. This
year, the price of a bushel of squash was $28. The grower's yield this
year was 400 bushels. Eighteen percent of the total production of his
squash this year would have had a value of $2,016.
Growers not only improved crop quality in the field, but surprisingly,
at the market as well. How? one grower reduced the number of ears that
were lost after displaying them for sale from 15% to 1% of the total
crop. At the farm market, the grower explained that customers open the
on the ears of corn to check for larvae. The opened ears dry out faster
and soon become unmarketable. As a result of participating in the Kentucky
IPM program and using pheromone traps in sweet corn to monitor for corn
earworm, the grower said he was able to target when an insecticide was
needed to manage the corn earworms more effectively. The grower said
that when larvae were present in the ears, some consumers would go ahead
and purchase the ears, but the product moved slowly. When the customer
saw that the corn did not have larvae in the ears, then he or she did
not check every ear, the product sold faster and the loss of the product
on the refrigerated shelf was reduced to only one percent of the crop.
Original document: 23 February 2000
Last updated: 23 February 2000
Scoutcat logo courtesy of C. Ware, copyright 2000