Lep Monitoring Network Update – Black Cutworm & True Armyworm

Black cutworm

We are currently in our third week of monitoring for the black cutworm.

Traps were checked between May 9 – 15 for the presence of BCW adult moths. Over the past week, a total of 28 traps in 11 counties were monitored. Counties that reported an average of greater than 10 moths include Brown and Wood (Figure 1). Counties with high trap numbers should plan to monitor for BCW larvae after corn is planted, especially in fields with a lot of broadleaf weeds such broadleaf weeds, such as chickweed and purple dead nettle. For more information about BCW please visit: https://aginsects.osu.edu/sites/aginsects/files/imce/ENT_35_14%20BCW.pdf

Black cutworm moth report: May 9 - 15, 2022

Figure 1. Average black cutworm (BCW) moths captured from May 9^th to May 15^th. The large number indicates the average moth count for the week and the small number in parentheses is the total traps set up in the county.

True Armyworm

Trapping has begun for a second pest in the Lep Monitoring Network, the true armyworm (AMW) moth (Figure 2). 

Wing traps were set the week of May 2^nd and checked between May 9 – 15 for the presence of AMW adult moths. Over the past week, a total of 28 traps in 9 counties were monitored. Over the past week, trap numbers in Van Wert and Wood were above an average of 7 moths per trap (Figure 3).

Figure 2. True armyworm moth. Photo credit: Curtis Young.

True armyworm moth report: May 9 - 15, 2022

Figure 3. Average true armyworm moths captured from May 9^th to May 15^th. The large number indicates the average moth count for the week and the small number in parentheses is the total traps set up in the county.