Ashley Dean

Ashley is an education extension specialist for field crop entomology at Iowa State University. She coordinates the Iowa Moth Trapping Network, the Regional Corn Rootworm Monitoring Network, and the Iowa Pest Alert Network. She also develops educational resources for field crop pests in Iowa and aids in the research efforts of the Soybean Research Laboratory. Her expertise is integrated pest management of insect pests and general agronomy. She received both her B.S. in Agronomy and M.S. in Entomology from Iowa State University prior to this role.

February 12, 2024 2:32 PM

Iowa State University’s IPM Team has monitored field crop pests for a long time. The pests have changed over the years, but the goal is the same: to help inform farmers about pest activity in Iowa. Our moth trapping efforts target black cutworm, which is a migratory moth. Since timing of arrival...

Crop Production, Insects and Mites
July 14, 2023 11:51 AM

Blister beetles are an occasional late-summer problem in Iowa alfalfa fields. The beetles feed on alfalfa and soybean foliage, but leaf loss is not of economic importance. The bigger concern with blister beetles is their toxicity to livestock when accidentally consumed in feed. The beetles...

Crop Production, Insects and Mites
June 15, 2023 11:51 AM

On June 14, Iowa State University extension entomologists put out a Pest Alert to scout for true armyworm because of statewide reports of this pest feeding on crops. In addition, there have been multiple...

Insects and Mites
June 9, 2023 2:26 PM

We have had a busy few weeks fielding questions from farmers and agronomists about various insects that are feeding in crop fields. Temperatures have been warm and that has prompted many insects to resume activity – they are hungry! The biggest concern lately has been true armyworms, but other...

Crop Production, Insects and Mites
June 6, 2023 11:06 AM

The trapping season for true armyworm (TAW) and black cutworm (BCW) has come to an end. We appreciate our cooperators for tirelessly checking traps the last two months and reporting their captures so we can provide the most accurate scouting information for these pests. To recap, we had 31...

Crop Production, Insects and Mites
May 25, 2023 10:23 AM

Moth flights into Iowa slowed down a bit during Week 7 (May 14 to May 20). Cooperators for the Iowa Moth Trapping Network reported 147 black cutworm (BCW) and 130 true armyworm (TAW) moths, with three new significant flights of black cutworm. More details on significant flights and cutting dates...

Crop Production, Insects and Mites
May 25, 2023 7:54 AM

Alfalfa growth is off to the races in many parts of Iowa, and we have heard reports from around the state that insects are very active in alfalfa as well. Field agronomists, especially in southern Iowa, have...

Crop Production, Insects and Mites
May 19, 2023 11:03 AM

Western and northern corn rootworms are serious corn pests in Iowa and the Corn Belt. These pests readily adapt to management tactics, especially in continuous corn production. The larvae consume corn roots, thereby reducing nutrient and water uptake, and cause stalk lodging. The adults may also...

Crop Production, Insects and Mites
May 18, 2023 1:13 PM

Week 6 (May 7 to May 13) of the Iowa Moth Trapping Network was vastly different than the week before. Our cooperators reported 239 black cutworm (BCW) and 295 true armyworm (TAW) moths, with several significant flights occurring around the state.

Recall that we predicted...

Insects and Mites
May 9, 2023 3:13 PM

Very few moths were reported by our cooperators last week. During week 5 of the Iowa Moth Trapping Network (April 30 to May 6), our cooperators reported 41 black cutworm (BCW) and 32 true armyworm (TAW) moths around the state, and there were no new significant flights of BCW to report. However,...

Insects and Mites
May 3, 2023 12:10 PM

Fewer moths were reported last week than in previous weeks, but even so, the northward migration of two pest species continues. During week 4 of the Iowa Moth Trapping Network (April 23 to April 29), our cooperators reported 71 black cutworm (BCW) and 85 true armyworm (TAW) moths around the...

Crop Production, Insects and Mites
April 26, 2023 11:51 AM

Even with some cooler weather last week, moths continue to migrate northward into Iowa. During week 3 of the Iowa Moth Trapping Network (April 16 to April 22), our cooperators reported 83 black cutworm (BCW) and 110 true armyworm (TAW) moths around the state. Three additional significant flights...

Crop Production, Insects and Mites
April 20, 2023 12:04 PM

Warm weather and strong winds during the second week of moth trapping pushed many moths northward into Iowa. During week 2 of the Iowa Moth Trapping Network (April 9 to April 15), our cooperators reported 95 black cutworm (BCW) and 46 true armyworm (TAW) moths around the state. Two significant...

Crop Production, Insects and Mites
April 12, 2023 12:55 PM

The 2023 moth trapping season is underway, and our volunteers began placing traps the week of March 26. Black cutworm (BCW) monitoring is a long-standing project in Iowa, and true armyworm (TAW) was added in 2017. Both of these pests are migratory, making it difficult to predict where...

Crop Production, Insects and Mites
March 6, 2023 2:42 PM

Each year new insect management resources are made available or are updated to provide the latest information. This blog provides a brief update to some popular resources. 

The 2023 version of the Handy Bt Trait Table is now available through this Texas A&M Agrilife Extension...

Insects and Mites
February 15, 2023 9:47 AM

Iowa State University’s IPM Team has monitored field crop pests for a long time. The pests have changed over the years, but the goal is the same: to help inform farmers about pest activity in Iowa. Our moth trapping efforts target migratory moths. Black cutworm monitoring is a long-standing...

Crop Production, Insects and Mites
January 13, 2023 8:23 AM

Last year was the second season of an organized, regional corn rootworm monitoring effort with the Corn Rootworm IPM working group. This working group was formed to address regional concerns as corn rootworm populations continue to...

Crop Production, Insects and Mites
August 24, 2022 8:19 AM

Several labs in the Midwest have been monitoring the distribution of soybean gall midge in Iowa since 2018. Last year, we sampled many counties in western Iowa but only confirmed three new counties. This year, we focused on the counties just east of the distribution in 2021 and were able to...

Crop Production, Insects and Mites
August 11, 2022 9:16 AM

Twospotted spider mites have been noted in fields across much of Iowa already this summer, as much of Iowa is in abnormal or extreme drought (D0-D3, US Drought Monitor). Scouting for spider mites in field crops...

Crop Production, Insects and Mites
July 22, 2022 12:44 PM

Western and northern corn rootworms are serious pests of corn throughout the Corn Belt (Photo 1). We recommend that farmers scout every cornfield every year, regardless of the management tactic(s) used, to evaluate management decisions and prepare for next year. It is a good idea to scout for...

Crop Production, Insects and Mites
July 12, 2022 2:24 PM

Western and northern corn rootworm are serious pests of corn throughout the Corn Belt. We recommend that farmers scout every cornfield every year, regardless of the management tactic(s) used, to evaluate management decisions and prepare for next year. It is a good idea to scout for larvae early...

Crop Production, Insects and Mites
June 17, 2022 11:09 AM

Today, while scouting for bean leaf beetle south of Ames, my lab found a few early vegetative plants with soybean aphid. Actually, it was Ashley Dean who found them. It was the ants moving on plants that caught her eye. Taking a closer look revealed a few small aphid colonies feeding on the...

Crop Production, Insects and Mites
June 9, 2022 9:37 AM

Last year, entomologists and field specialists with Iowa State University Extension and Outreach received many questions about effective management of corn rootworms as populations have increased in the past two years and farmers have experienced enhanced root injury during drought conditions....

Crop Production, Insects and Mites
June 1, 2022 5:37 PM

The trapping season for true armyworm (TAW) and black cutworm (BCW) has come to an end. We appreciate our cooperators for tirelessly checking traps over the last two months and reporting their captures so we can provide the most accurate scouting information for these pests. To recap, we had 44...

Crop Production, Insects and Mites
May 31, 2022 12:57 PM

Recent surveying suggests that farmers and their advisors are interested in receiving short bursts of information via text messaging. We formed the Iowa Pest Alert Network with the goal of providing short, timely insect pest updates to farmers and advisors through text messages. These updates...

Crop Production, Insects and Mites

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