UCR Veterinary Entomology

Researchers Develop Improved Lab-Testing System for Mosquito Repellents

Pesticide Information

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Researchers Develop Improved Lab-Testing System for Mosquito Repellents

Tuesday, June 6th, 2017

Among the processes by which researchers gauge the effectiveness of a mosquito repellent is one that depends on convincing a volunteer to shove an arm treated with the compound into a box and let the little bloodsuckers have a go at it. The system works well enough but, like all such assays, has limitations, not […]

Mosquito Repellents: DEET and PMD Sprays Most Effective, While Wearable Devices Disappoint, Study Finds

Friday, February 17th, 2017

A search for “mosquito repellent” on Amazon.com delivers more than 28,000 product results. For a regular consumer, it can be difficult to find the ones that truly work among a sea of products that make bold claims. Researchers at the Molecular Vector Physiology Laboratory at New Mexico State University are working to make the search […]

Bayer & Monsanto to merge

Thursday, September 15th, 2016

Bayer and Monsanto today announced that they signed a definitive merger agreement under which Bayer will acquire Monsanto for $128 per share in an all-cash transaction. Monsanto’s Board of Directors, Bayer’s Board of Management and Bayer’s Supervisory Board have unanimously approved the agreement. Based on Monsanto’s closing share price on May 9, the day before […]

VetPestX – a searchable database of pesticides to control animal ectoparasites

Tuesday, May 10th, 2016

Interested in managing insect pests of animals?  While management should focus first on breaking the life cycle of insect pests, in some cases management options may include use of insecticides. The VetPestX searchable database of pesticides registered by state for use to manage ectoparasites of animals has been expanded over the last few months to […]

It’s Mosquito Awareness Week in California

Tuesday, April 19th, 2016

This week (April 17-23, 2016) is Mosquito Awareness Week in California, and mosquito-control districts are doing their best to educate the public about how to control mosquito populations. As we move into spring and the weather gets warmer, the number of mosquitoes will increase as people begin spending more time outdoors. Mosquito Awareness Week is […]

Landmark 20-Year Study Finds Pesticides Linked to Depression In Farmers

Tuesday, November 10th, 2015

Earlier this fall, researchers from the National Institute of Health finished up a landmark 20-year study, a study that hasn’t received the amount of coverage it deserves. About 84,000 farmers and spouses of farmers were interviewed since the mid-1990s to investigate the connection between pesticides and depression, a connection that had been suggested through anecdotal […]

UC offers spray application training

Monday, August 24th, 2015

Farmers, pest control advisers, pesticide applicators and others who use agricultural spray equipment are invited to attend an agricultural spray application workshop on Sept. 22 and 23. The two-day workshop, hosted by UC Agriculture and Natural Resources, will be held at the Western Center for Agricultural Equipment at 154 Hills Drive in Davis. The intensive, […]

VetPestX: Finally! An Online, Searchable, Pesticide Label Database Just for Pests of Animals

Monday, June 29th, 2015

Almost all online pesticide databases contain crop-specific product labels; very few include products labeled for animal use. A single online location for veterinary pesticide labels was needed. Led by Alec Gerry of the University of California at Riverside (UCR), veterinary entomologists from California, Washington, New Mexico, and Oklahoma contributed information on animal pesticide products registered […]

Brown Dog Ticks are Resistant to Permethrin, Study Finds

Tuesday, May 26th, 2015

Dogs and their owners who battle the brown dog tick (Rhipicephalus sanguineus) sometimes go to desperate measures to control them. Brown dog ticks can complete their life cycle inside people’s homes — unlike most ticks, which spend most of their lives outside. One female brown dog tick can lay up to 5,000 eggs in its […]

Lowe’s to eliminate pesticides that hurt crop pollinating honeybees

Monday, April 13th, 2015

         Home improvement chain Lowe’s Cos Inc will stop selling a type of pesticide suspected of causing a decline in honeybee populations needed to pollinate key American crops, following a few U.S. retailers who have taken similar steps last year. The class of pesticides known as neonicotinoids, or neonics, are sold by […]

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About Insect Pests of Animals

Alec C. Gerry, Ph.D

Assoc. Professor and Extension Specialist


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E-mail: michael.lewis@ucr.edu