Scouting Notes From the Southeast Extension District
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Collapse ▲During scouting visits for NC State Cooperative Extension on farm soybean trials we found multiple pests in the same field (corn earworm, kudzu bug, clover worm, soybean loopers, and a few stinkbugs) which helped to confirm the importance of scouting. When determining insect presence, species identification, and pest population/threshold, a sweep net was used. The images attached are an example of some of the pests found. Please note that due to the different species located in the same field, fields may require multiple treatment options. Reference the NC State soybean insect production guide.
Pest: Corn earworm
Picture taken: August 1, 2022 (Day of scouting)
Location: Robeson
Sweep count after sweep method-(7 average) for threshold reference North Carolina State Threshold calculator.
R3 Growth Stage
Agronomy notes: feeding both on foliage and newly formed pods, determined 4 prolegs to separate from soybean loopers (2 prolegs) and green clover worms (3 prolegs).
Image from scouting
Pest: Kudzu bugs
Picture taken: August 1, 2022 (Day of scouting)
Location: Robeson
Sweep Count: <4
R3 Growth stage (Same field as image above, planted at a later date for fill in)
Agronomy notes: Colonization found on headland, near ditches in isolated spots. Interior field sweep numbers were lower. Potential to move further into the field. **nymph was also noted in same region
Image captured at scouting
Additional Useful links
Scouting video with North Carolina State’s Dominic Reisig; https://www.youtube.com/watch?v=4azZDkymkhA