Authors: Dawn H. Gouge, Shujuan Li, Kathleen Walker, Chris Sumner, Shaku Nair and Carl Olson
Mosquitoes are the most important insect pests that affect
the health and wellbeing of humans and domestic animals
worldwide. They can cause a variety of health problems
due to their ability to transfer (vector) viruses and other
disease-causing pathogens, even in the arid Southwest U.S.
Pest Abundance on Desert Produce and Melon Crops in 2015
This document contains a number of charts and graphs detailing information relating to the abundance of Whitefly, Bagrada bugs, Beet Armyworm, Cabbage Looper, and Corn Earworm. There are also a few figures relaying temperature information.
Impact of Planting Date on Aphid Infestations and Contamination in Head Lettuce
A five year study was conducted with the goal of identifying planting windows during the season when lettuce is at risk from aphid infestations. The studies indicate that planting date and temperature likely have a strong influence on seasonal abundance of aphids.
This documents contains an in depth guide to identifying Aphids most commonly found in Arizona produce. There are many images present to aid in identification. Aphid types include: Lettuce Aphid, Foxglove Aphid, Green peach Aphid, and Potato Aphid.
Recent outbreaks of cowpea aphid in alfalfa are more than a local phenomena. Large populations of cowpea aphids have been reported throughout Arizona. The reason behind these outbreaks are unknown. This article hopes to bring some insight by discussing the cowpea aphid, the damage it causes, and suggestions on controlling it.
Head Lice: Identification, Biology, and Integrated Pest Management
Authors: Shujuan (Lucy) Li, Dawn H. Gouge, Shaku Nair, Al Fournier and Mike Wierda
The head louse is a tiny insect that can crawl rapidly across the scalp, but cannot fly or jump. Tips are given for identification. Then management and removal of head lice is discussed in great detail. Suggestions for policies and control measures in schools are given.
Lepidopterous Larvae Management in Desert Produce Crops, Oct 2015
A chart detailing various insecticides and the efficacy against Lepidopterous Larvae. Each insecticide is rated at Good, Fair, and Poor, and is shown for Beet armyworm, Cabbage looper, and Corn earworm respectively. There is also a brief note for each of the insecticides.
Court Opinion on Sulfoxaflor with relation to Bees
This is a document from the United States Court of Appeals. This case is a challenge to the EPA’s approval of insecticides containing sulfoxaflor, which initial studies showed were highly toxic to honey bees
There are many insects that can be found on Desert Produce and Melons. This Article covers the description, damage, and Management/Control of the following insects:
Flea Beetles, Darkling Beetles, Field crickets, Saltmarsh Caterpillar, Ground Beetles, and Rove Beetles.
Insect Management on Desert Vegetables and Melons: Whiteflies 2015
This article describes the sweetpotato whitefly (SWF) in great depth and their relation to Desert Vegetables and Melons. It includes it's history of development and damages it has caused. The article also describes the management of SWF, including sampling/monitoring, natural/biological control, cultural practices, and insecticidal control.
Evaluation of Clothianidin Seed Treatments for Bagrada Bug Control in Broccoli
With the outbreak of the Bagrada bug, it was estimated that they infested more than 80% of the acreage in Arizona between 2010-2014. This article outlines an expirement on the use of Clothianidin seed treatments as a way to manage the Bagrada Bug pest. The results indicated that this treatment was effective.
2015 Guidelines For Whitefly / CYSDV Management on Melons
CYSDV has caused significant reductions in fruit yields in the past, mainly due to the whitefly. This article gives some management guidelines for the whitefly including cultural management and chemical management.
A total of 19 surveys were completed in the 2015 workshop, representing an estimated
total of 25,905 fall acres and 26,255 spring lettuce acres from Yuma and neighboring Imperial County. This article concludes that the local produce industry has made great strides in minimizing environmental impacts in lettuce production. There have not been any major reports of field failures.
Predicting and Mitigating Resistance Development in Whiteflies
Authors: Naomi Pier, Lydia Brown, Peter Ellsworth, John Palumbo, Yves Carriere, Al Fournier (University of Arizona); Steve Castle (USDA), Nilima Prabhaker (UC-R)
Insecticidal resistance in whiteflies is a real problem, threatening economic and effective pest control. Research is being done on whitefly resistances to currently used chemical controls and the potential of usage patterns to contribute to the development of these resistances. Effective resistance mitigation begins with the application of the first principles of resistance management.
Authors: Shujuan (Lucy) Li, Dawn Gouge, Shaku Nair, Al Fournier
In 25 states head lice have become highly resistant to the most commonly used lice shampoo treatments, including pyrethrins and the pyrethroid insecticide permethrin. In fact, most states (104 out of 109 samples) tested so far have lice that are resistant to these over-the-counter lice treatment options.
EPA’s Proposal to Mitigate Exposure to Bees from Acutely Toxic Pesticide Products
This document discusses the EPA's proposed mandatory pesticide label restrictions to protect managed bees. The proposed requirements would not supersede existing, more restrictive product use specifications.
Impact of Bagrada Bug Infestations on Fall Cole Crops, 2010-2014
The bagrada bug became a major pest of cole crops since 2010. This report consists of information gathered through surveys over four years and shows what some of the trends are regarding the bagrada bug over that time period.
Whitefly Management in in Desert Melon Crops, 2015
A chart detailing various insecticides and the efficacy against Whiteflies. Each insecticide is rated at Good, Fair, and Poor, and is shown for both the Adult and Nymph stage. There is also a brief note for each of the insecticides.
Lepidopterous Larvae Control in Desert Melon Crops, Apr 2015
A chart detailing various insecticides and the efficacy against Lepidopterous Larvae. Each insecticide is rated at Good, Fair, and Poor, and is shown for Beet armyworm and Cabbage looper. There is also a brief note for each of the insecticides.