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Harrison Pests

The Harrison County Pest Resistance Project initially began in 2017 as a result of the introduction of Palmer amaranth in the county four years prior. As most farmers in the area are grappling with herbicide resistant weeds but do not have Palmer in their fields yet, the project was expanded to include waterhemp, marestail, giant ragweed and disease trials as well. Read below to learn more about local disease and weeds and why they were included in this project.

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Pests

What’s the deal with pest resistance?

Pests – insects, disease and weeds -- are a regular part of life. For large areas, our pest removal practices have included spraying safe pesticides or relying on plant genetics to manage them. But many pests can reproduce quickly and often, allowing them to evolve and develop tolerance to some of our easiest, cheapest and most effective management tools. Some pests are completely tolerant to some pesticides. When this occurs, it is called pest resistance, because they can now resist and survive a specific management tactic that previously controlled them.

Pest resistance is a natural process. However, when it comes to something as valuable as our food and when there’s no easy way to fight a pest, it can lead to yield reductions and increasing costs. Farmers, landowners, scientists, private businesses, and groups of individuals are finding ways to preserve our management tools, prevent pest resistance, and develop management strategies for already resistant pests. 

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What is the Iowa Pest Resistance Management Program?

The Iowa Pest Resistance Management Program is a grassroots, collaborative effort to protect Iowa crops from costly pest resistance that threatens our crop production and our state’s economy. The program is made up of individuals and groups representing all parts of the Iowa community, including farmers and landowners, small and national businesses, scientists, researchers and state regulators. Together, these groups and individuals have leveraged their resources, expertise and time to help inform the public about pest resistance, find new pest management strategies and encourage public support and adoption of these practices.

How can you get involved?

The Iowa Pest Resistance Management Program (IPRMP) was designed for you to get involved. The program features four pilot programs across the state that are working to combat various types of pest resistance. These include: Managing Western Corn Rootworm in Northeast Iowa; the Harrison County Pest Resistance Management Project in Southwest Iowa; Managing Soybean Aphid in Northwest Iowa; and Managing Herbicide-Resistant Waterhemp in Story County. To learn more about the IPRMP and the pilot programs, check out the Q&A here. To learn how you can lend your support or develop your own community project, please email isuipm@iastate.edu.

IPRMP Questions and Answers

Click here to learn more about the IPRMP. 

Version 1 of the IPRMP is here

IPRMP Introduction--Webinar Recording

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Mushroom calendar specific to Iowa and Midwestern states

The calendar shows the months when a mushroom species has been recorded in Iowa and other parts of the upper Midwest. The dates of the actual appearance of any one species can vary widely from year to year and is primarily based on environmental conditions, including ground temperature, the timing of rainfall, amount of precipitation, and season.

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How to use the calendar.

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Mushroom Calendar- Summer Mushrooms

The calendar shows the months when a mushroom species has been recorded in Iowa and other parts of the upper Midwest. The dates of the actual appearance of any one species can vary widely from year to year and is primarily based on environmental conditions, including ground temperature, the timing of rainfall, amount of precipitation, and season.

Key

How to use the calendar.

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Mushroom Calendar- Fall Mushrooms

The calendar shows the months when a mushroom species has been recorded in Iowa and other parts of the upper Midwest. The dates of the actual appearance of any one species can vary widely from year to year and is primarily based on environmental conditions, including ground temperature, the timing of rainfall, amount of precipitation, and season.

Key

How to use the calendar.

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Apple IPM

Apple Insect Pests

Pest Type Definition
key/major present in most orchards in most years and usually causing economic damage if not managed. MD: Mating Disruption
minor/ rare
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