Aphids, or plant lice, feed on most vegetable crops, many houseplants and many ornamentals grown in New Hampshire, as well as numerous weeds and wild plants. With their awesome reproductive abilities aphids can build up in large numbers in a very short period of time.

The Colorado Potato Beetle (CPB) became a pest when settlers brought potatoes into the Rocky Mountain area, the native habitat of this beetle. The beetle preferred the potato to its host weed and has spread to become a serious pest throughout the US and Eastern Canada.The CPB feeds on the leaves and terminal growth of nightshade-family plants, such as potato, tomato, and eggplant. The potato, however, is its preferred plant. The above-ground destruction of potato plants can cause severe reduction in tuber size and overall yield.

Cutworms are the larval form of dozens of different species of small brown or tan, banded moths. Depending on the species, cutworms damage plants in several ways.

The name flea beetle describes many species of small beetles that chew tiny shot-holes in plant foliage and jump around like fleas when disturbed. Although some species feed on a wide range of plants, most FB species attack a single species or family of related plants.