http://hdl.handle.net/10150/212849 2026-06-10T15:31:49Z 2026-06-10T15:31:49Z Kerns, David L. Tellez, Tony Nigh, Jeff http://hdl.handle.net/10150/221681 2020-04-02T08:30:14Z 1999-02-01T00:00:00Z

Mating Disruption of Beet Armyworm in Vegetables by Synthetic Pheromone Kerns, David L.; Tellez, Tony; Nigh, Jeff Oebker, Norman F. The beet armyworm pheromone dispenser, Yotoh-con-S, was evaluated for its ability to inhibit mate location and subsequent population growth of beet armyworm in head lettuce. Pheromone dispensers were ineffective at reducing beet armyworm populations the under high population pressure. Under low beet armyworm pressure, pheromone dispenser did significantly reduce beet armyworm populations, but not to the point where insecticide applications could be eliminated.

1999-02-01T00:00:00Z Kerns, D. L. Palumbo, J. C. Byrne, D. N. http://hdl.handle.net/10150/221680 2020-04-02T08:18:50Z 1999-02-01T00:00:00Z

Relative Susceptibility of Red and Green Color Forms of Green Peach Aphid to Insecticides Kerns, D. L.; Palumbo, J. C.; Byrne, D. N. Oebker, Norman F. Field populations of green peach aphid, Myzus persicae (Sulzer), were collected from five produce fields near Yuma, Arizona. Three of the fields sampled contained both red and green-colored forms, while the remaining two fields contained only green-colored green peach aphids. Red-colored aphids were consistently more resistant to dimethoate and lambda-cyhalothrin, and usually more resistant to endosulfan than green-colored aphids collected from the same field. Slight differences in susceptibility to imidacloprid suggest that development of resistance is a possibility and justifies close resistance monitoring. Susceptibility to imidacloprid was not influenced by color form. We detected little or no differences in susceptibility to acephate, mevinphos or bifenthrin.

1999-02-01T00:00:00Z Kerns, David L. Tellez, Tony http://hdl.handle.net/10150/221662 2020-04-02T12:14:19Z 1999-02-01T00:00:00Z

Efficacy of Pyrethroid Insecticides for Cabbage Looper Control in Head Lettuce, 1997 Kerns, David L.; Tellez, Tony Oebker, Norman F. Mustang 1.5EW, Ammo 2.5EC, Pounce 3,2EC, Scout X-TRA, and three formulations of Karate were compared for efficacy to cabbage loopers infesting head lettuce in Yuma, AZ Karate and Pounce provided the most consistent cabbage looper control followed by Mustang and Scout X-TRA. Ammo appeared slightly inferior to the other pyrethroids tested. There did not appear to be any obvious differences in the efficacy of the three Karate formulations.

1999-02-01T00:00:00Z Kerns, David L. Tellez, Tony http://hdl.handle.net/10150/221679 2020-04-02T08:18:50Z 1999-02-01T00:00:00Z

Tank Mixing New Insecticide Chemistries with a Pyrethroid Insecticide for Control of Lepidopterous Pests in Head Lettuce, 1997 Kerns, David L.; Tellez, Tony Oebker, Norman F. Confirm, Success and Proclaim were evaluated for lepidopterous insect control in lettuce with and without the addition of Mustang 1.5EW. Success and Proclaim used alone were highly efficacious toward cabbage looper and Heliothinae and did not appear to benefit greatly from the addition of Mustang. However, Confirm's activity towards Heliothinae was significantly improved by the addition of Mustang. Additionally, on large framed plants where coverage is difficult, Confirm benefitted from the addition of a pyrethroid for control of loopers.

1999-02-01T00:00:00Z