Areawide Insect Trapping Network (January 9, 2019)
Our area-wide trapping network is up and running. The project is designed to measure the activity and movement of adult populations of a number of
key pests. The project is being funded by the Arizona Iceberg Lettuce Research Council, and will hopefully provide an indication of when pest activity
(e.g., corn earworm moth flights) is increasing based on pheromone/sticky trap captures. The data is not intended to indicate field infestations, as
trap data is largely a reflection of adult movement. If nothing else, the data may make PCAs aware of increased pest activity in some areas and
encourage intensified scouting in susceptible produce fields. The pests being monitored include: corn earworm, tobacco budworm, beet armyworm, cabbage
looper using pheromone traps; aphids, thrips and whiteflies using yellow sticky traps. A total of 15 trapping locations have been established. Traps
will be checked weekly and data will be made available in the bi-weekly Vegetable IPM updates. If a PCA or grower is interested in weekly counts,
those can be made available by contacting us.
Results of pheromone and sticky trap catches can be viewed here .
Corn earworm: Moth activity remains seasonably low throughout all Yuma growing regions.
Beet armyworm: Moth activity remains moderate, and counts are typical for this time of the year.
Cabbage looper: Similarly, cabbage looper moths remain active, and slightly above normal for early January.
Whitefly: Adult movement are season lows and overall movement is relatively absent typical for this time of the season.
Thrips: To date, thrips activity has been seasonably low at most trap locations, tending lower than normally expected.
Aphids: Aphid flights remain relatively steady, albeit lower than prior weeks.
Leafminers: Adult activity remains seasonably low in all locations.
Diamondback moth: Diamondback moth (DBM) counts in pheromone traps increased to peak levels in all trap locations during the last few weeks in December. Numbers remain higher than trap counts recorded this time last year. over the past two weeks (See DBM Trap Network). However, to date this fall counts are much lower than what we experienced in spring 2017.
To contact John Palumbo go to: email@example.com
For questions or comments on any of the topics please contact Marco Pena at the Yuma Agricultural Center.
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