Western Integrated Pest Management Center

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.

For weed scientists and growers, Western Australia is a cautionary tale. Herbicides failed, resistant weeds spread unchecked and non-chemical control methods had to be developed on the fly to keep the grain industry in business. As herbicide-resistant weeds spread in the United States, researchers are trying to adapt some of the lessons learned in Australia here at home, including harvest weed-seed control, before the situation gets as dire. 

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.

Kochia is a tumbling weed plaguing growers and ranchers from Central Canada to West Texas.

“It’s salt tolerant, heat tolerant, cold tolerant,” said Kent Davis, a crop consultant with Crop Quest in Colorado. “I want to kill the damn stuff, there’s no question about it, but you have to admire it at the same time.”

The thing that makes integrated pest management so powerful is that it can be adapted to manage pests in any environment – even an environment as unique as Yellowstone National Park and a pest as big as a 900-pound bull elk.

The state that calls itself "The Last Best Place" has a lot to protect from pests: vast fields of wheat and barley driving its agriculture sector, miles of mountains, forests and rangeland forming an outdoor paradise, and clear rivers and lakes at the upper end of the North American watershed. Here's a look.

Montana is known as "The Last Best Place." An outdoor paradise, and home to wheat, barley and pulse crop production, Montana actively promotes integrated pest management to protect its agriculture and natural areas.

The U.S. Animal and Plant Health Inspection Service has proposed lifting the domestic quarantine designed to slow the spread of emerald ash borer, an action that could speed the destructive insect’s introduction into Western states that have so far kept it at bay.

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

Proper identification of a disease is the critical first step for growers to apply the correct treatment. In peonies, proper disease identification was a problem. If a plant was diseased, growers assumed that their plants were sick with Botrytis gray mold. The reality was more complex.

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.

Biocontrol helps the National Bison Range in Montana manage invasive weeds. Here's how they do it - and you can too.

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.

Rapid and accurate identification of weeds at the seedling stage can save producers and land managers time and money but most weed identification guides only provide information about the mature stage of the plants. Not this one.

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.