The bagrada bug, Bagrada hilaris, became a major pest of cole crops in the fall of 2010 where widespread out breaks of the invasive stinkbug pest were reported throughout the desert SW. The resulting yield losses in broccoli, cauliflower, cabbage, and other Brassica crops were economically significant.
Local weather patterns can have a significant impact on the abundance of insect pests in vegetable crops, particularly in the southwestern U.S. where weather extremes are the norm. Components of weather, mainly temperature, moisture, and wind can either promote insect population growth or cause populations to decline. As we approach the normal cool, dry weather of winter, growers can expect insect activity to decrease. Why is that?
2019 Guidelines for Diamondback Moth Management in Desert Cole Crops
List of Guidelines prepared in response to the diamondback moth (DBM) outbreaks that occurred in 2016-17 in Arizona. Following these guidelines can help keep the moths from spreading. There is also a list of insecticides and their respective efficacy against DBM.
In 2016 there was a outbreak of Diamondback Moths. This article covers a bit of the history of that outbreak and how the were handled in the next two years. The event was partially documented by some surveys found in this article.
Insect Management on Desert Produce and Melons: Pests at Stand Establishment 2019
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.
2019 Guidelines for Whitefly / CYSDV Management on Fall 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.
Cultural Practices for Whitefly Management in Desert Melons 2019
This article outlines some ways to manage the Whitefly (SWF) population. Even though there are naturally occurring factors that lie outside the realm of control, there is still many things one can do to help reduce the population and risk of the Whitefly.
A total of 28 surveys were completed of insecticide usage on desert lettuce, representing an estimated total of 33,275 fall acres and 35,156 spring lettuce acres from Yuma and neighboring Imperial Counties (Holtville/Brawley/BardWinterhaven).
Insect Losses and Management on Desert Lettuce: A 15-Year Summary
Authors: Shimat V. Joseph, Kris Braman, Will Hudson, and Shakunthala Nair
Thrips are tiny, cigar-shaped insects belonging to the order Thysanoptera, whose name refers to the fringed wings of insects in this order. About 5000 species of thrips are known, and many cause damage to cultivated plants by feeding or vectoring plant diseases. Some thrips are predatory. This document relays information about thrips.
The bagrada bug, became a major pest of cole crops in the fall of 2010. The following contains the summaries surveys performed on an annual basis since 2010, aiming to estimate the severity of bagrada bug on direct-seeded and transplanted cole crops, and the intensity of chemical management required to control it.
Weed Interference with Insect Management in Desert Crops
Effective weed management is critical for the profitable production of vegetable crops in the desert southwest for all the obvious reasons. However, weed management is also essential for another important, but often overlooked, reason.
Authors: W. Eugene Hall, Lydia M. Brown, Naomi Pier, and Peter C. Ellsworth
Blister beetles produce a toxic compound called cantharidin, which can be lethal to horses and unpleasant to humans and other animals. This publication provides guidelines to help growers avoid blister beetle contamination.
This article describes the sweetpotato whitefly (SWF) in great depth and their relation to Desert 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.
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.
This article describes the Lettuce Aphid. It covers it's physical description, economic damage, insecticidal control, and methods for identifying this insect. Very little has been reported about Lettuce Aphids under desert conditions.
A chart detailing various insecticides and the efficacy against different species of Aphids. Each insecticide is rated at Good, Fair, and Poor, and is shown for each listed Aphid species. There is also a brief note for each of the insecticides.