Resources

The corn earworm, Heliothis zea, is considered one of the worst pests of sweet corn. It might go undetected until harvest time when it is discovered…

The European corn borer (Ostrinia nubilalis) was introduced into the U.S. in 1917. Broken tassels, collapsed stalks, feeding signs on leaves, and…

Fungus gnats comprise two entire families of flies, but in greenhouses, most commonly we see Mycetophilids, especially Bradysia coprophila and B.…

The house fly, Musca domestica, is a familiar insect pest. It is of economic importance because it can transmit disease-causing organisms, such as…

The seedcorn maggot, Delia platura, was probably introduced from Europe in the mid-1800’s and is now widely distributed in the U.S. and Canada. This…

The apple maggot (Rhagoletis pomonella) is one of the most important economic insect pests of apples in New Hampshire. This native insect is also…

The European earwig (Forficula auricularia) is a common pest of homes and gardens in New England and can be quite destructive to house and garden…

The plum curculio (Conotrachelus nenuphar) is the most serious insect pest of apples and among the most destructive insect pests of peaches. It also…

The Balsam gall midge (Paradiplosis tumifex), also known as the Balsam fir needle gallmaker, causes damage to balsam fir Christmas trees in many…

Carpenter ants (Camponotus spp.), along with termites, are the most troublesome structural pest in New Hampshire. Four species live in the state,…

The spongy moth (Lymantria dispar) is an important defoliating insect of hardwoods in New Hampshire. A native of Europe and Asia, the spongy moth was…

The boxelder bug, Boisea trivittata, feeds primarily on pistillate (female) and seed bearing boxelder trees by sucking sap from leaves, tender twigs…

Introduction Wood ash has a long history of use in New England. Our Yankee ancestors used wood ash to make lye for soaps, to clean glass, silver…

    These maps are the results of 27 years of surveying by Dr. Alan Eaton for Blacklegged ticks (Ixodes scapularis). Black legged ticks occur in all…

Dutch elm disease is caused by two closely related fungi, Ophiostoma ulmi or O. novo-ulmi. The fungi are spread from tree to tree by elm bark beetles…

A number of sawfly species are important defoliating pests of ornamental trees in New Hampshire. The damage is done by the larvae which are…

There are two families of ticks, the Ixodidae (hard ticks) and Argasidae (soft ticks). Those of importance to hikers, campers, and pet owners are in…

The fall webworm (Hyphantria cunea) and the Eastern tent caterpillar (Malacosoma americanum) feed on fruit, shade, and woodland trees. They are of…

In appearance, scales in general show little resemblance to typical insects. They are well protected by the waxy, almost impermeable shell they live…

Most spruce trees are damaged by one of two species of adelgids: the Eastern spruce gall adelgid (Adelges abietis) and the Cooley spruce gall adelgid…