10 Common Summer Garden Pests & Organic Controls

Mid-summer brings peak pest pressure. Scout early, act fast, and always start with the least-toxic option. Here are the top 10 culprits and how to manage them organically.

1. Aphids – Blast with water or insecticidal soap. Soft bodies = easy organic control.
2. Caterpillars – Hand-pick/squash or spray Bt (Bacillus thuringiensis). Row covers for veggies.
3. Corn Earworm – Check silk tips; remove with tweezers or apply few drops vegetable oil/Bt at silk dry-down.
4. Scale – Prune/burn infested branches; scrub with brush; neem or summer oil spray.
5. Leaf Miner – Cosmetic squiggly lines; early-season neem oil spray on susceptible crops.
6. Japanese Beetle – Morning shake-and-squash, insecticidal soap, baited traps (place AWAY from plants). Lawn grubs = beneficial nematodes or chemical if severe.
7. Colorado Potato Beetle – Row covers, neem oil, or general spray on potatoes, tomatoes, eggplant, petunias.
8. Whitefly – Strong water spray late day + immediate insecticidal soap; repeat weekly.
9. Slugs/Snails – Morning hand-pick, beer traps, diatomaceous earth barriers.
10. Squash Bugs – Gray oval stink bugs; neem on eggs/juveniles early. Attack squash, melons, pumpkins.
11. Grasshoppers – Row covers, encourage insectivorous birds. Nosema locustae bait (Nolo Bait, Semaspore) for heavy infestations.

Share your pest successes (or failures) in the comments!