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  • Soybean Aphids
    for the 3rd year of the soybean aphid podcast We review the status of aphids on buckthorn introduce a new buckthorn project buckthornwatch org and talk about the new invasive pest of soybeans the brown marmorated stink bug that has been found in Iowa Podcast may272011podcast mp3 Download S2 E10 Preharvest intervals and insecticides Dr Hodgson and O Neal talk about the preharvest intervals for those soybean growers considering an insecticide late in the season Podcast Aug172010sbapodcast mp3 Download S2 E9 Soybean aphids populations increasing Really Dr O Neal returns from vacation to discuss with Dr Hodgson reports of aphid outbreaks in Iowa The doctors have an upcoming field day on August 28th in Sutherland Iowa Sponsored by PFI For details visit http www practicalfarmers org assets vcalendar index php Podcast 13Aug2010sbapodcast mp3 Download S2 E8 Soybean defoliators Erin Hodgson talks about recent aphid populations and also some interesting defoliators in soybean Podcast 5August2010soybeanaphidpodcast mp3 Download S2 E7 Soybean aphids are patchy in Iowa Soybean aphids are picking up activity throughout Iowa however populations are still very patchy Also consider other defoliators in soybean right now that might compound stress during pod set Podcast 27July2010soybeanaphidpodcast mp3 Download S2 E6 Winged aphids on the move Winged aphids are still on the move in Iowa although most fields still remain well below treatment levels Neighboring states have notable aphids so scouting should still continue Podcast 19July2010soybeanaphidpodcast mp3 Download S2 E5 Aphids are hard to find Aphids are still hard to find but that doesn t mean that Matt and Erin can t find something to talk about We discuss spraying insecticides based on a calendar date as opposed to spraying insecticide based on need i e aphids populations above a threshold Podcast 16July2010SBApodcast mp3 Download S2 E4 Still no aphids Still very

    Original URL path: http://www.ent.iastate.edu/soybeanaphid/node?page=5 (2015-11-11)
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  • Soybean Aphids
    professor at the Ohio State University visited ISU and gave a seminar about her research on the ladybeetles Ladybeetles can play a positive role by feeding on pest like the soybean aphid Mary s research is focused on the exotic multi colored asian ladybeetle This species is a voracious predator of soybean aphids but is also a pest in our homes and to grape growers Mary is documenting the role landscape plays in the establishment of this species as part of her Buckeye Lady Beetle Blitz To learn more about Mary s work visit http ladybeetles osu edu default asp Podcast 20090918sbapodcast mp3 Download S1 E11 Corn Aphids is this the next new pest for Iowa farmers Matt O Neal talks with Amy Asmus of Asmus Farm Supply to discuss outbreaks of aphids in cornfields around north central Iowa The two discuss what species of aphids are in corn and what impact they may have Be prepared for more questions than answers as the scientist and crop consultant compare notes about this problem For a more complete description of the aphids see Dr Erin Hodgson s article in the Integrated Crop Management Newsletter www extension iastate edu CropNews 2009 0807hodgson htm Podcast 20090911sbapodcast mp3 Download S1 E10 An aphid is an aphid is an aphid Its mid August and soybean aphids are starting to look white and small yes even smaller Do they count Are aphid populations still increasing Why Erin and Matt answer these questions and more Have a question about aphids or other insect pests Visit www soybeanaphid info and post a question Podcast 20090825sbapodcast mp3 Download S1 E9 Attack of the winged aphids Erin and Matt discuss the recent increase in aphid populations including winged aphids that are moving from field to field We discuss what growers

    Original URL path: http://www.ent.iastate.edu/soybeanaphid/node?page=6 (2015-11-11)
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  • Soybean Aphids
    will be posted once a week during the growing season In these podcasts will be updates on the status of the soybean aphid and insights into its management from research at ISU Please note the comment section added to each podcasts as well as the link Contact Us in the upper right hand corner Each of these are ways for you to ask Dr Hodgson and O Neal questions about soybean aphids and soybean pest management We will address these questions and comments in future podcasts S1 E2 Introducing Erin Hodgson In this edition Dr Erin Hodgson is introduced She is the new assistant professor in the Department of Entomology at ISU with extension and research responsibilities focused on corn and soybean production Dr Hodgson s Ph D was spent studying the soybean aphid and how best to scout for it She describes some of the work she is doing this summer helping growers manage insect pests in soybean fields Podcast 20070713sbapodcast mp3 Download S1 E1 First soybean aphid podcast First podcast about soybean aphids in Iowa and beyond Podcast 1sbapodcast mp3 Download Soybean Aphid Resources The second edition of the Soybean Aphid Field Guide is now available electronically Click on this link to see the full color guide Soybean aphid field guide Soybean varieties are available that are resistant to the soybean aphid Follow this link to a four page factsheet that will describe this new tool for preventing yield loss from the soybean aphid Speed scouting is a sampling method to determine if a soybean field is at risk for yield loss due to an outbreak of soybean aphids This method will help growers estimate if soybean aphid populations are reaching the 250 aphids per plant economic threshold Follow this link to a computer game exercise that will quickly train a scout how to use speed scouting Initial insecticide evaluations for soybean aphid management 2013 Soybean aphid resistant varieties 2012 Insecticide Evaluations for Soybean Pests 2011 Insecticide Evaluations for Soybean Aphid Management 2010 Insecticide Evaluations for Soybean Aphid Management 2009 Insecticide Evaluations for Soybean Aphid Management 2008 Insecticide Evaluations for Soybean Aphid Management 2007 Insecticide Evaluations for Soybean Aphid Management 2006 Insecticide Evaluations for Soybean Aphid Management 2005 insecticide evaluations conducted by Soybean Entomology at Iowa State University Soybean Aphids in Iowa 2007 This extension publication SP247 PDF presents an overview of the soybean aphids biology with management recommendations including scouting tips and treatment options updated during the spring of 2007 Plant Health Initiative Soybean aphid basics Visit this site for a fuller description of the soybean aphids biology and distribution Integrated Crop Management Newsletter articles on soybean aphids This list includes all of the ICM articles that feature the soybean aphid Revisit this site for the latest information on soybean aphid IPM Specific topics regarding soybean aphid biology and management Review of soybean aphid management tactics In this reprint from the 2005 ICM conference is a review of research conducted at Iowa State University regarding different management

    Original URL path: http://www.ent.iastate.edu/soybeanaphid/node?page=7 (2015-11-11)
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  • Soybean Aphids
    by the end of June Aphids often occur in soybeans in northeastern Iowa around mid June but they are difficult to find and infestations rarely reach the economic threshold of 250 aphids per plant during June However this year aphids were found earlier than expected in northeastern Iowa Therefore I recommend that producers start scouting the last week of June or the first week of July at the very latest Scouting can provide information on the presence of aphids and by scouting for several weeks it can be determined whether the population is increasing or decreasing he said Read the full story at http www extension iastate edu news 2005 jun 072101 htm That Soybean Pest Mite Not Be An Aphid The hot dry weather conditions are increasing the need for producers to scout their fields Reports to Iowa State University ISU crop specialists indicate infestations of spider mites in some Iowa soybean fields as well as isolated fields with more than 250 soybean aphids per plant Read the full story at http www extension iastate edu news 2005 jul 071501 htm Confirmation of aphid presence and weekly variation Attached is a powerpoint presentation with data from Brian Lang and Matt O Neal tracking aphid populations within thier soybean research plots These data may not be representative of regional population trends Management Options for Soybean Aphids If producers do need to treat for soybean aphids this year two Iowa State University ISU entomologists have recommendations on when and how insecticides should be used to manage this pest Do not use insecticides when small populations of soybean aphids are first found in the field said Matt O Neal Iowa State University ISU assistant professor soybean entomology Natural enemies can help suppress small aphid populations Determine if the aphid population is increasing

    Original URL path: http://www.ent.iastate.edu/soybeanaphid/newsreleases (2015-11-11)
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  • Seasonal Timeline for Assessing Risk of Soybean Aphid | Soybean Aphids
    preliminary scouting during the end of June although it is unlikely that economically damaging populations will develop during this time Insect predators such as lady beetles within the soybean field have been shown to suppress early season population growth Insecticides should not be sprayed prophylactically below threshold insecticide treatments would remove these predators and possibly exacerbate later aphid populations July August Risk to soybeans High Soybean aphid populations have traditionally increased substantially in size during mid to late July and early August Weekly scouting of soybeans is recommended Growers should scout five locations for each 20 acres in a field Also look for ants or lady beetles on the soybean plant they are good indicators of the presence of aphids When aphids are found estimate the population size per plant An insecticide application is recommended if the average number of aphids is 250 per plant and the population appears to be increasing in size Stagnant or declining populations such as those with parasitic wasps as indicated by dead aphid mummies can occur and do not require an immediate insecticide September October Risk to soybeans Small to None As soybeans reach maturity the aphid population will start to decline Both male

    Original URL path: http://www.ent.iastate.edu/soybeanaphid/timeline (2015-11-11)
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    You will need Flash 8 player to view this content You can download that HERE

    Original URL path: http://www.ent.iastate.edu/soybeanaphid/speedscouting/index.html (2015-11-11)
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  • Soybean Aphid-resistant Soybean Variety Information | Soybean Aphids
    Code Telephone number E mail address Website address Please mail e mail or fax this form by September 15th 2012 to Michael McCarville Department of Entomology 113 Insectary Iowa State University Ames IA 50011 Phone 515 294 8663 Fax 515 294 7406 E mail mikemcc iastate edu To help prevent incorrect listings please type or print information clearly and carefully Be sure to indicate spaces and capitalization of brand and

    Original URL path: http://www.ent.iastate.edu/soybeanaphid/survey (2015-11-11)
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  • People | Aaron Gassmann Laboratory
    management Mike Dunbar Ph D student Ecology IPM IRM Kenneth E Masloski Ph D student Plant Insect Interactions Aubrey Paolino M S student Coy R St Clair Ph D Student Insect immunology and behavior Alumni Robert Bruner M S in Entomology from Iowa State University Host Plant Resistance Jennifer Deitloff Postdoctoral Research Associate Ecology and Evolution Julie Graesch Master of Agriculture from Iowa State University Horticultural Entomology Eugene Hannon Postdoctoral

    Original URL path: http://www.ent.iastate.edu/dept/faculty/gassmann/people (2015-11-11)
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