Identifying Garden Pests: Insects and Their Look-Alikes

Why Small Pests Are Tricky

Deer and rabbits are obvious. But tiny, fast, well-camouflaged creatures — or those that mimic beneficials — often go misidentified. Common pitfalls:

• Beneficial vs. pest look-alikes: Spined soldier bug (good) vs. squash bug (bad).
• Wrong-place suspects: Pillbugs found at damage sites are often innocent scavengers, not culprits.
• Shape-shifters: Grubs in soil become beetles on plants — same pest, different stage.

"Insect" Is a Loose Term

Gardeners lump many pests as "insects," but scientifically they span multiple classes:

Why it matters: Control methods differ. Insecticides won't touch mites or mollusks. Accurate ID = effective, targeted action.

Quick ID Tips

1. Use a hand lens (10×) to examine mouthparts, legs, body segments.
2. Photograph and compare to university extension guides.
3. Note plant host, damage pattern, time of day active.
4. When in doubt, bag a sample and consult your Cooperative Extension office.