********LAST REMINDER********* **********Forms are due August 9, 2024*********** The 2024 OISC Clean Sweep Pesticide Disposal participant form is attached and available via the OISC website at the link below. Clean Sweep Pesticide Disposal Link: https://oisc.purdue.edu/pesticide/clean_sweep.html If you are planning on participating in the program, please complete the attached 2024 OISC Clean Sweep participant form and return the form to me via the contact info on the form. Please keep the info form as that form has the dates and locations. If you are an organization, such as Extension, Purdue Pesticide Programs, Solid waste Districts, Recycling districts, media and other organizations please forward the attached participant form onto all interested parties. The program would not be a success without all you do getting the word out!
John Obermeyer


Corn leaf aphid (CLA), is typically an occasional presence in cornfields within the Midwest – they can be found in most fields closer to harvest time, when corn is starting to senesce and they don’t/can’t have much impact. They are typically not a pest of concern during the summer months. This year is different! In Indiana and throughout the Midwest, this aphid has made its presence known this year. We don’t know all the reasons why this year’s populations have been so much worse, but it is very likely progression of remnants of Hurricane Beryl from south to north (July 8 and 9) distributed winged aphids throughout our region; this is a common route of aphid transport. Since last week’s Pest&Crop article, winged aphids have been found on multiple plants/crops, including many that CLA are unable to feed on. This morning while running the dog in the yard, John Obermeyer[Read More…]

The vast majority of cornfields in the northwestern counties of Indiana have reached or have passed pollination.

The vast majority of cornfields in the northwestern counties of Indiana have reached or have passed pollination.

What are these “huge” Japanese-like beetles seen around homes, golf courses, parks and farmsteads?
Corn lodging, during rapid vegetative growth just before pollination, is not a welcome site.

Though more of a curiosity, and infrequent, it is refreshing for us to receive calls/emails of mysterious insects “threatening” the crop.

As we move into the first days of summer, we are finished with the early season, migratory moths and caterpillars (armyworms, black cutworms) and are now into those that overwinter here. For those pheromone trapping for western bean cutworm moths, you should begin this week. This is just the beginning of an extended moth emergence and flight, with their peak activity expected 2-3 weeks from now. Those in high-risk areas, i.e., sandy soils, high moth flight and WBC history should be gearing up for field scouting of corn, even those with Bt-traits. Depending on the trait expressed by your corn hybrids, efficacy can be highly variable. Scouting of pre-tassel corn should begin once multiple moths are being captured regularly. In five different areas of a field, inspect 20 consecutive plants for egg masses which are laid on the upper surface of the top leaves of corn and/or larvae that may[Read More…]
Armyworm Pheromone Trap Report – 2024

Earlier this week, we received reports of armyworm in northern counties continuing to damage wheat.
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