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The drought thickens: dry hot weather is good for spider mites

Show: 
Soybean Pest Podcast
Season: 
4
Episode: 
6
Description: 

Drought conditions continue for all of Iowa, setting the stage for spider mite outbreaks. Drs. O'Neal and Hodgson discuss the challenges of managing this pest. For more information visit http://iowabuglife.blogspot.com/ for pictures and additional details about spider mites. For more info about managing crops and pests in this drought visit
http://www.extension.iastate.edu/CropNews/

Category: 

Rainy days and Mondays (and aphids, mites and caterpillars) always get me down

Show: 
Soybean Pest Podcast
Season: 
6
Episode: 
12
Description: 

“Hanging around, nothing to do but frown, Rainy days and Mondays always get me down.” Karen Carpenter sang about this deadly combination and it’s effect on her emotions. Now, Matt and Erin pile on with a list of insect pests that are active in the state of Iowa. Thankfully, it is not all bad news as we review the biology and pest status of spider mites, soybean aphids and a mix of caterpillar species. We discuss how the weather can help determine if a spider mite outbreak is likely and some tips for dealing with one if it occurs. Matt reveals an upcoming gig in which he will speak at a “Conservation Biological Control Short Course” hosted by the Xerces Society for invertebrate conservation. This all-day event is on 21 August at the ISU Field Extension Education Lab. To learn more visit the website: http://conta.cc/1g9yZqI. Email us your questions at oneal@iastate.edu and ewh@iastate.edu.

Category: 

Herbicide or herbivore?

Show: 
Soybean Pest Podcast
Season: 
7
Episode: 
7
Description: 

Today, Matt and Erin talk about current pest activity in Iowa. Specifically, the last week was very hot (>90 degrees) and that isn't conducive for soybean aphid growth. So no new detection since the last podcast (but not surprised because aphids don't do well under consistently hot temps). Also, some alfalfa farmers are starting to see potato leafhopper injury. Matt heard about early twospotted spider mite injury in Illinois and that is a concern for extended hot and dry periods. Southeastern Iowa is abnormally dry right now and so be looking for initial spider mite infested along edge rows. Mite injury should not be confused with herbicide injury that is also starting to show up in some soybean fields. Finally, Erin and Matt talk about Pollinator Fest displays at Reiman Gardens. Erin will have the kids make Wikki Stik insects and Matt has prepared a honey tasting station.  

potato leafhopperpotato leafhopper burn

Potato leafhopper (Photo by Marlin Rice) and classic "hopper burn" (Photo by Purdue Extension). To learn more about potato leafhopper, read this ICM News article.

twospotted spider mitetwospotted spider mite injury

Twospotted spider mite (Photo by Frank Peairs) and spider mite injury (Photo by Whitney Cranshaw). To learn more about scouting for twospotted spider mite, read this ICM News article

mantid art project

Wikki Stik insect art for Pollinator Fest (Photo by Erin Hodgson). 

Image(s): 
mantid art project
potato leafhopper
potato leafhopper burn
twospotted spider mite
twospotted spider mite injury
Category: 
Chapters: 
Time: 
0:02:05
Title: 
Soybean aphid numbers slightly decrease
Time: 
00:02:50
Title: 
Potato leafhopper injury noted in alfalfa
Time: 
00:03:35
Title: 
Twospotted spider mites found in Illinois
Time: 
00:09:05
Title: 
Pollinator Fest displays