Georgia Pesticide Applicators Practice Exam

Which insect pests are small in size and prefer to feed on new growth?

1. Aphis

2. Bees

3. Ladybugs

4. Ants

The correct answer is: Aphis

Aphis, commonly known as aphids, are small insects that are well known for their tendency to feed on the new growth of plants. They are typically less than 1/8 inch long and can often be found in clusters on tender plant shoots, buds, and leaves. Aphids use their specialized mouthparts to pierce the plant tissue and suck out the sap, which not only affects the growth of the plant but can also lead to the transmission of plant viruses. Their preference for young plant growth makes them particularly harmful during the early stages of a plant's development, as these new parts are vital for the overall health and growth of the plant. In contrast, bees, ladybugs, and ants have different feeding habits and do not specifically target new growth as their primary food source. Bees generally collect nectar and pollen from flowers, ladybugs are beneficial predators of aphids and other soft-bodied insects, and ants primarily feed on a variety of substances, including honeydew produced by aphids, but do not directly damage plant tissues.