Western Integrated Pest Management Center

In California and throughout the West, land managers face huge challenges on huge acreage. Threats include invasive annual grasses, climate change and changing fire regimes. And those threats combine – the invasive grasses outcompete native perennial grasses and become flash fuels that exacerbate wildfires in landscapes already vulnerable because of climate change. 

To combat the combined threat, UC Davis researchers are testing a burn-and-replant method as a combined solution.

“If it’s so complex that it’s impossible, then no one wins.”

That was the key takeaway from a recent two-day workshop in Vancouver, Washington about implementing new U.S. Environmental Protection Agency pesticide-use rules to protect endangered and threatened species.

Alfalfa-eating aphids are only about an eighth of an inch long. But the tiny sap-sucking insects are a serious pest for growers, capable of stunting or even killing alfalfa plants. In the field they’re difficult to see from even a few feet away, so the last thing you might think of using for research into biological control of aphids are satellites orbiting 300 miles above Earth. Yet that’s exactly what researchers at the University of Nevada, Reno are indeed using – and they’re seeing things from space you just can’t see from the ground.

Call it puncturevine, goatheads, devil’s thorn or whatever creative collection of expletives you mutter after sitting, kneeling or stepping barefoot onto it, Tribulus terrestris is one unpleasant plant. But with funding from the Western Integrated Pest Management Center, a researcher in New Mexico is measuring the cold-hardiness of weevils from different climactic zones to see if biocontrol efforts in cool northern climes could be boosted by importing warm-weather weevils from southern deserts.

Pesticide Educational Resources Collaborative-Medical produces educational materials and resources on pesticides,  specifically targeting health care providers so they can recognize, treat and report pesticide-related illnesses.

Start with a heaping helping of weeds in an orchard owned by an electrical engineer, then add in a weed scientist and a dash of Western IPM Center funding. What you get is electric weed control – a promising (dare we say shocking?) new way to control weeds in certain landscapes.

As students return to classrooms in the fall of 2020, coronavirus is very much on people’s minds. In the West, having an IPM program in place seems to be helping schools plan for reopening.

There is a lot of fear about bed bugs, and a stigma surrounding them that can keep some people from seeking help with a bed bug infestation. But bed bugs have been hanging around humans for a long time and aren’t going anywhere anytime soon. 

As pests go, wild pigs are huge – and hugely effective.

As an ecosystem-transformer species, medusahead is among the worst weeds. Not only does it compete for resources with more desirable species, but it changes ecosystem function to favor its own survival at the expense of the entire ecosystem.

Researchers, ranchers, and land managers know that livestock grazing can be a valuable and selective noxious-weed management tool, and this guide summarizes all the effective techniques.

Conventional wisdom says cows don’t go up steep slopes. They don’t climb hills and don’t travel very far from water. But some cows never got that memo, and researchers are looking into whether naturally hill-climbing cows can provide production and environmental benefits in the rugged West.

Both pests and pesticides are potentially harmful for kids and adults in schools. Common schools pests like the German cockroach or mice can carry disease and cause allergic responses. And children can be more at risk for harm from sprayed pesticides because of their behavior – playing on the floor or in grassy fields, for instance – and because of their developing physiology.

Many integrated pest management practices are so widely adopted in Western agriculture they have become conventional pest management. That is one of the key findings of a new report by the Western Integrated Pest Management Center titled Adoption and Impacts of Integrated Pest Management in Agriculture in the Western United States.

University of California, Riverside chemical ecologist Jocelyn Millar identifies the chemical signals insects use to communicate, then synthesizes versions of them to help monitor, trap or disrupt their activities. Lygus bug is just one of dozens of species Millar and his team are working on. The common thread is that they all communicate chemically, and decoding those chemical signals can create new ways to control those species where they are pests.

Nevada's state flag has the words "Battle Born" above a silver star and crossed sagebrush sprays, celebrating its creation during the American Civil War. Battle born is also a pretty good description of the efforts of many people working for state, federal and local agencies to keep invasive weeds in check in Nevada's challenging landscapes. Here's a look.

The Western Region Tribal Work Group brought together representatives of several tribes and federal agencies to combat invasive species on tribal lands.

The Western IPM Center’s IPM Adoption and Impacts Assessment Work Group, a collection of natural and social scientists from across the country, created online resources showing IPM researchers how to conduct basic impact assessments.