Rosa is a genus of woody perennials which includes dozens of species and thousands of cultivars of roses. Roses are grown all over the world and offer a extensive range of flower type, color, growth habit, and fragrance. ...

Ulmus is a genus of mostly large, deciduous trees found throughout much of the Northern Hemisphere. Until the introduction of the Dutch elm disease pathogen in 1930, the American elm (U. americana) was one of the most ...

Hydrangea is a genus of about 23 species native to Asia and the Americas. Hydrangeas are widely grown in both home and commercial landscapes and are one of the most economically important nursery crops in the US. With its ...

Tilia is a genus of of mostly large, deciduous trees native to Europe, Asia and North America. Known as linden or basswood in North America, they are popular ornamental shade trees with attractive dense foliage and fragrant ...

Rhaphiolepis is a genus of about 15 species of evergreen shrubs and small trees in the family Rosaceae. Ornamental species, commonly known as Indian hawthorn, include R. indica, R. umbellata, and the hybrid R. x delacourii. ...

Crataegus is a large genus of shrubs and small trees in the rose family commonly known as hawthorn. This popular ornamental has showy pink or white flowers in spring and colorful berry-like fruit. Some species also have ...

Tarnished plant bug (TPB) is a major pest of strawberry and brambles in New York State. TPB and other species of Lygus occur throughout North America, Europe, and Asia. This insect is a pest of more than fifty economically ...

How to conduct a successful IPM program in your school or municipal building, Step 2

Apple chlorotic leaf spot virus (ACLSV) infects pome and stone fruits. It can elicit diverse symptoms although, in most cultivars the virus is latent, which means that infected trees do not manifest observable symptoms. ...

The common bed bug has returned as a significant pest across the United States. First recognized in the tourism industry in the late 1990’s, bed bug infestations are now common in homes. People dealing with infestations ...