Landscape Plant Pests

In this video, Extension field specialist Margaret Hagen describes controlling grubs in your home lawn. Read a full video transcript below. <br /> <b...

The spring cankerworm (Paleacrita vernata) and the fall cankerworm (Alsophila pometaria) are native pests to the deciduous forest, shade, and ornament...

Fire blight, caused by the bacterium Erwinia amylovora, is found to some extent almost every year in New Hampshire and other major apple and pear grow...

Aphids, or plant lice, feed on most vegetable crops, many house plants and ornamentals grown in New Hampshire, as well as numerous weeds and wild plan...

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 ...

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

Powdery mildew occurs most commonly on the cool-season grasses such as bluegrasses and fescues, especially in shaded areas or areas with poor air circ...

The birch leaf miner (Fenusa pusilla) feeds primarily upon three host plants: gray birch, paper birch, and European white birch. This European native ...

The bronze birch borer (Agrilus anxius) is found throughout the birch range in the U.S. and Canada. It attacks and breeds in paper birch, yellow birch...

Sod webworms are the caterpillar stage of small moths, from the genera Crambus and Herpetogramma. Adult moths are about 1&quot; long, tan-colored, and...