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Don't know what you got till its gone?: Chlropyrifos banned

Show: 
Soybean Pest Podcast
Season: 
12
Episode: 
8
Description: 

Erin and Matt welcome Ashley Dean to the podcast to talk about her work tracking and trapping insect pests of corn and soybeans in Iowa, and the breaking news that the EPA has banned chlorpyrifos.

Ashley gives us an update on the low populations of soybean aphids, occurrences of spider mites and grasshoppers, and the slow spread of soybean gall midge into the more central part of Iowa.  She also shares her work on trapping corn rootworms and the discovery of a red western corn rootworm. We geek-out a bit about that one.

We discuss the recent announcement that the EPA is reducing the tolerances for chlorpyrifos to zero for all foods.  This is a bigger deal than the announcement just over a year ago that Corteva would stop producing chlorpyrifos. Ashley Dean wrote an article about that decision: https://crops.extension.iastate.edu/cropnews/2020/02/corteva%E2%84%A2-en...

We discuss how the removal of chlorpyrifos will reduce the number of insecticides with different modes of action that corn and soybean farmers can use.  For details about modes of action, visit this website: https://irac-online.org/modes-of-action/.

There are insecticides that can replace chlorpryifos, but they are more expensive.  For soybean aphids, there are also aphid-resistant varieties. Ashley wrote an article about the economic factors related to pest management and soybean production. She developed partial budgets for this article that goes into great detail about the costs of different approaches for managing the soybean aphid: https://onlinelibrary.wiley.com/doi/full/10.1002/ps.6093

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Ashley Dean

Staff
Education Extension Specialist I
Area of Expertise: 
Field Crop Entomology

Extension

Our extension program is led by Dr. Erin Hodgson, and Dr. O’Neal and many lab members also participate in programs throughout the year. We are focused on delivering research-based information to a variety of clientele. Our group serves farmers, crop consultants, agricultural professionals and other university/extension personnel. Most of our programs are within the state of Iowa, but we travel throughout the Midwest to deliver content. Read more about Extension

Strange start to soybean production

Show: 
Soybean Pest Podcast
Season: 
13
Episode: 
1
Description: 

Despite a slow start to planting, some insects are starting to respond to emerging soybeans.

In this episode Erin and Matt kick off the 13th season on the 13th of June with a brief discussion of the spiders on Stranger Things before getting into soybean pest activity. Erin reviews predictions about bean leaf beetle winter mortality and subsequent activity on spring emerging soybeans.  Erin also reviews her groups work tracking several lepidopteran pests (that’s a bunch of moth species that feed as caterpillars on corn and soybeans).  Matt notes that it’s not just soybeans that these hungry beetles are feeding on.

For more details about the overwintering survival of bean leaf beetles- https://crops.extension.iastate.edu/cropnews/2022/04/another-tough-winter-bean-leaf-beetle

Erin and her technician Ashley Dean have developed a pest alert system. Visit this website for more details- https://pestalerts.extension.iastate.edu/.

If you are looking for an interesting event about pollinators, visit ISU’s Pollinator Fest on 25 June at Rieman Gardens, just south of the Jack Trice stadium.

Category: 

A week of firsts (pest sightings)!

Show: 
Soybean Pest Podcast
Season: 
13
Episode: 
2
Description: 

Erin and Matt recap a week that saw several firsts for 2022.

Soybean aphids were first sighted, so too were thistle caterpillars, and Japanese beetles.  We are obligated to encourage you to scout for these pests, as the season goes on. Thier first appearance is not a cause for alarm, just a reminder that these potential pests may cause trouble later in the season.

If you value updates about pests, consider signing up for pest-alerts:

https://pestalerts.extension.iastate.edu/

After summarizing 5 different pests (soybean aphids, Japanese beetles, Thistle caterpillars, gall midge, Armyworms), Matt introduces 2022's first Fun Insect Trivia question.

For more about the topic of the F.I.T., visit these websites:

https://www.weareiowa.com/article/tech/science/environment/iowa-invasive...

https://www.inhf.org/blog/blog/5-of-iowas-most-invasive-species-and-how-...

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Insect pests, they're not just in soybeans

Show: 
Soybean Pest Podcast
Season: 
13
Episode: 
3
Description: 

Here at the soybean pest podcast, we do not limit ourselves to our namesake. After Erin summarizes ongoing effortst to track insect pests of soybeans, we look to Iowa's other commodity, corn. She breaks down the progress of soybean aphids, Japanese beetles, thistle caterpillars and  leaf hoppers (in the drought plagued corner of nortwest Iowa). We discuss corn rootworms, and old wives tale connecting rootworms to lighting beetles and a surprise attack of stink bugs to a corn field in southeastern Iowa. If you want more immediate pest alerts, consider joining the Midwest Pest Alert Network: https://pestalerts.extension.iastate.edu/

After the pest talk, Erin shares a new insect identification challenge from University of Nebraska. See how well you do against Professor Doctor Erin, she scored a 97%. https://4h.unl.edu/online-insect-id-contest?fbclid=IwAR1uNzEBoqEgQx9QYcw...

Matt completes the pod with a Fun Insect Trivia question.  What do the four insects have in common? Below are the scientific names that he tries to pronounce. If you look up the common names, you'll immediately learn the answer.

1.Aphis nerii

2.Tetraopes tetrophthalmus

3.Oncopeltus fasciatus

4.Danaus plexippus

 

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