Answer: The insect killer should take care of most critters. The only exceptions might be caterpillars - or maybe deer? If there are any four legged creatures with big appetites in your neighborhood, bug spray won't bother them. Look for frass (caterpillar poop - usually black granules). Or, if you see semi-circular patterns in the leaves, leaf cutter bees are at work. Wish I other suggestions and solutions!
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