News from the Ag Insects Team

  1. Photo credit: Zane Raudenbush

    Fall Armyworm Factsheet Now Available!

    Oct 10, 2023

    A fall armyworm factsheet, titled "Fall Armyworm in Ohio Field Crops" written for Ohio Line by Dr's Kelley Tilmon and Andy Michel is now available online! This factsheet discusses the lifecycle, management and treatment options available for fall armyworm in Ohio. Fall armyworm is not a yearly pest in Ohio, becasue it does not overwinter in our region. In fact, fall armyworm is considered It is a tropical species, that when high populations and the right weather events occur, migrates north. This event is known to reoccur every 3-5 years.

  2. By-catch in Fall Armyworm Traps

    Sep 7, 2023

    We have been noticing a number of moths in our fall armyworm (FAW) bucket traps that are not FAW, but rather a species of wainscot moth. These wainscot moths are accumulating in high numbers in the traps, and without proper identication, can be mistaken as FAW. While both moth species are in the same insect family, Noctuidae, FAW is an agronomic crop pest that requires monitoring, and the wainscot moth is not. Below are some images of both moth species.

  3. Asiatic Garden Beetle Sex-Determination Paper Published

    Sep 1, 2023

    A paper titled "Quick Sex-Determination of the Asiatic Garden Beetle, Maladera formosae (Coleoptera: Scarabaeidae)" by Adrian Pekarcik, Scott Clem, Kyle Akred, and Kelley Tilmon was published November 2022 in The Great Lakes Entomologist. In this paper, authors identified a quick way to determine the sex of Asiatic garden beetle (AGB) adults. To successfully determine the sex of an AGB adult, one will need either a dissecting microscope - or even a hand lens in the field. Next, you need to look at the abdomen of the AGB and identify the pygidium, or last dorsal tergite.

  4. Fall Armyworm Monitoring to Begin

    Aug 24, 2023

    Lep Monitoring Network Update

  5. Student Spotlight - *Stephanie Pflaum*

    Aug 17, 2023

    Stephanie Pflaum is one of three lab interns in the Tilmon Lab at OSU’s CFAES Wooster Campus. Stephanie is starting her junior year at Ashland University with majors in Biology and Environmental Science as well as minors in Entrepreneurship Management and Philosophy with plans to pursue a future career in research. In her free time, she works as a laboratory assistant in the Department of Biology and Toxicology at Ashland and is also a member of Tri Beta Biological Honor Society and sustainability club at AU.

  6. Updated Stink Bug Field Guide

    Aug 10, 2023

    It is the time of year where we start seeing stink bugs in our soybean fields. Stink bugs are a common pest of soybean. There are a number of different species of stink bugs in Ohio including the green, brown marmorated, brown, dusky, onespotted, and redshouldered. There are also predatory species of stink bugs that do not feed on soybeans; however, these are less common than the pest species.

  7. Student Spotlight - *Becca DiScipio*

    Aug 3, 2023

    Rebecca (Becca) DiScipio is one of the three undergraduate student assistants in the Tilmon lab this summer. With how the summer is flying by, she will be back at Baldwin Wallace University (BW) in no time as a junior Neuroscience major, with minors in Chemistry and Mathematics. She is a member of the Interdisciplinary Neuroscience Society, KME mathematics society, yellow jackets activity board, on the executive board for her sorority, and is a laboratory assistant for the biology department at BW.

  8. Western Bean Cutworm Moth Look-a-like

    Jul 31, 2023

    One of the most common pests we monitor for in our Ohio Lepidopteran Monitoring Network is the Western bean cutworm (WBC). The WBC caught the attention of growers across the state around 2017, when it became apparent that the caterpillars were developing resistance to the Bt trait in corn that had previously provided protection.

  9. Raudenbush and Team Present AGB Bioassay Methods Poster

    Jul 27, 2023

    A poster was developed to present virtually at the 2022 annual Entomology Society of America Meeting titled "A Bioassay Method to Evaluate Efficacy of Insecticides Against the Asiatic Garden Beetle". This posted was developed by Amy Raudenbush, Adrian Pekarcik, Chris DiFonzo, Zane Raudenbush, Jon Witter and Kelley Tilmon. The Asiatic garden beetle is a pest of corn in sandy soils. The grubs feed on the corn seeds and roots in early development causing the plants to be stunted or even die.

  10. Western Bean Cutworm numbers are on the rise in Ohio!

    Jul 18, 2023

    Over the past week we have seen an increase in Western bean cutworm (WBC) numbers across Ohio. For the week of July 10 - 16, 22 counties monitored a total of 74 bucket trap for WBC adult moths. Three counties in northwest Ohio, including Defiance, Henry and Lucas, were all above the number (more than 7 moths), that we recommend to begin scouting for egg masses (Figure 1). For the complete article on our Lep Monitoring Network, click here!