(S6:23) Can natural enemies delay resistance to Bt crops?

Today, Matt breaks down a technical publication to Erin. This study evaluated the effect a lady beetle had on diamondback moth in Bt broccoli. Turns out, the presence of natural enemies can slow down the rate of Bt resistance. They talk about implications for this research in Iowa, specifically for corn rootworm in corn. Read the full article here: http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0090366.

(S6:E22) Nuisance pests and smear campaigns

In this episode, Matt starts by sharing some of the night life stops in Dubuque, Iowa. Erin talks about common nuisance invaders moving into homes during this extended fall weather. Learn more about how to manage these pests here: http://bit.ly/1P3KcX2. For most of the time, Matt and Erin talk about a recent editorial letter in Nature Biotechnology (October 2015). The author(s) share a story of a recent scientist that accepted funding from industry and the unexpected implications from the public. Read the letter here: http://www.nature.com/nbt/journal/v33/n10/full/nbt.3384.html.

(S6:E21) Too many damn bees?!

Today, Matt and Erin comment on a recent letter to the editor about too many "bees" on the ISU campus (see letter here: http://bit.ly/1LNbQGS). They talk about the real culprit, yellowjacket wasps, and why they may seem more abundant this year. Matt and Erin review the differences between bees and wasps, and why we probably don't have too many bees.

(S6:E20) Interview with Dominic Reisig

Today, Matt and Erin ask our 2015 Gunderson Memorial Lecture speaker, Dr. Dominic Reisig, a few questions about his research and extension program. Dominic is a field crop entomologist at North Carolina State University and has a wide range of responsibilities, for pest management including corn, soybean, cotton and wheat. Topics include stink bugs, kudzu bug, caterpillars (like Old World bollworm and corn earworm), and even soybean aphid.

(S6:E19) EPA ruling transforms neonicotinoid registration

In this episode, Matt and Erin break down a recent ruling to vacate the unconditional registration of sulfoxaflor. In other words, the EPA registration for sulfoxaflor, in products like Transform and Seeker, was overruled in U.S. court.

Read more about the court decision here: http://earthjustice.org/sites/default/files/files/sulfoxaflor-opinion.pdf

Read more about why EPA approved the registration of sulfoxaflor here: http://pesticides.supportportal.com/link/portal/23002/23008/Article/3561...

Learn more about insecticide groups here: http://www.irac-online.org/documents/moa-classification/

(S6:E18) The pros of conservation

In this episode, Matt and Erin transition from providing weekly field crop pest updates to other topics of interest. They discuss the new assessment form provided by the Xerces Society to help farmers understand the value of beneficial insect conservation. Find the form here: http://www.xerces.org/wp-content/uploads/2015/07/HAG_BeneficialInsects_J...

(S6:E17) What worries you?

In this episode, Matt and Erin talk about end-of-season soybean aphid populations in Iowa. Matt also shares results from a recent CCA poll from ISU Sociologist J. Arbuckle. He summarizes perceptions about emerging concerns in agriculture.

(S6:E16) Back to school!

Today is the first day of school at Iowa State and campus is buzzing. Matt and Erin talk about persisting soybean aphid populations in Iowa and why fields need to be scouted. If you have questions or ideas for sharing podcasts, please contact them (oneal@iastate.edu or ewh@iastate.edu).

(S6:E15) Stop touching me!

If a soybean aphids could talk, I would imagine them screaming, " Stop touching me!". Many Iowan fields are infested with soybean aphid this summer. Erin and Matt talk about what to do when these increasing populations happen late in the season. A short conversation about aphids in corn also happens. Finally, they get diverted and talk about winged aphid formation based on several cues, like touching and predators.

(S6:E14) What do aphids and rootworms have in common?

In this episode, Matt and Erin start by talking about foliar insecticide sprays for soybean aphid. Erin has a large efficacy evaluation program and screens many different products every year. She publishes the results in a Yellow Book (see previous editions here: http://www.ent.iastate.edu/soybeanresearch/content/extension). Then Matt talks a bit about corn rootworm biology and why that might be important in Iowa soybean.