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Ohio State University Extension

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Statewide Slug Monitoring Project – Update # 4

Figure 1. Slug feeding on soybean cotyledon in the field.

Our fifth slug report covers monitoring from June 9th to June 15th. During this time, we had 16 counties monitoring a total of 137 shingle traps. Because of the rain and cold temperatures, many fields have not been planted, and our slug numbers are low compared to last year. Our slug numbers were down this week, with the highest slug count of 3 (down from 5.8), which was an outlier from the statewide average of 0.25 slugs per trap. We will continue to update slug numbers as the season continues, so stay tuned for slug updates over the next few weeks! Slug shingle monitoring in Ohio is funded by the United Soybean Board.

Slugs in Ohio

Week 5

June 9th – June 15th, 2025

 Figure 2. Average slugs captured from June 9th to June 15th. The bold number on the left indicates the average slug count for the week, followed by the standard number on the right, which indicates the total traps set up in that county. 

Crop Observation and Recommendation Network

C.O.R.N. Newsletter is a summary of crop observations, related information, and appropriate recommendations for Ohio crop producers and industry. C.O.R.N. Newsletter is produced by the Ohio State University Extension Agronomy Team, state specialists at The Ohio State University and the Ohio Agricultural Research and Development Center (OARDC). C.O.R.N. Newsletter questions are directed to Extension and OARDC state specialists and associates at Ohio State.