Pest managers in southern Indiana should begin scouting their alfalfa for leaf feeding from weevil larva.
Christian Krupke
Prepared and updated annually by Christina Difonzo at MSU, this is your one-stop resource for deciphering Bt corn trade names and knowing which insecticidal traits are in your corn hybrids.
Attendees will gain insights into the latest advancements in resilient agriculture, discover effective practices and learn how to implement these strategies into their own operations to improve environmental sustainability and farm productivity.
The vast majority of corn has long ago completed pollination. There are the late-planted fields that have yet to do so.
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.
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…]
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