Now showing items 1-20 of 31

    • Disease and Insect Resistant Ornamental Plants: Acer (Maple) 

      Thurn, Mary; Lamb, Elizabeth; Eshenaur, Brian (New York State Integrated Pest Management Program, 2019)
      Acer is a genus of about 120 species of maple trees and shrubs. Offering a wide range of choices for size, growth habit, leaf shape and brilliant fall color, maples are frequently found in residential and commercial ...
    • Disease and Insect Resistant Ornamental Plants: Betula (Birch) 

      Thurn, Mary; Lamb, Elizabeth; Eshenaur, Brian (New York State Integrated Pest Management Program, 2019)
      The genus Betula consists of about 60 species of deciduous hardwood trees and shrubs native to Europe, Asia and North America. Commonly known as birches, they are most often associated with the popular white-barked types. ...
    • Disease and Insect Resistant Ornamental Plants: Buxus (Boxwood) 

      Thurn, Mary; Lamb, Elizabeth; Eshenaur, Brian (New York State Integrated Pest Management Program, 2019)
      Buxus is a genus of leafy evergreen shrubs and small trees commonly known as boxwood. Two of the most common types are B. sempervirens (American) and B. sempervirens ‘Suffruticosa’ (English). However, according to The ...
    • Disease and Insect Resistant Ornamental Plants: Cornus (Dogwood) 

      Thurn, Mary; Lamb, Elizabeth; Eshenaur, Brian (New York State Integrated Pest Management Program, 2019)
      Cornus is a genus of about 60 species of mostly shrubs and small trees commonly known as dogwoods. This genus includes many ornamentals, but the most popular is the flowering dogwood, Cornus florida. Native to the Eastern ...
    • Disease and Insect Resistant Ornamental Plants: Cotoneaster (Cotoneaster) 

      Thurn, Mary; Lamb, Elizabeth; Eshenaur, Brian (New York State Integrated Pest Management Program, 2019)
      Cotoneaster is a large and diverse genus of trees, shrubs and groundcovers in the rose family. With more than 400 species, Cotoneaster is widely distributed throughout the Northern Hemisphere. Ornamental species include ...
    • Disease and Insect Resistant Ornamental Plants: Crataegus (Hawthorn) 

      Thurn, Mary; Lamb, Elizabeth; Eshenaur, Brian (New York State Integrated Pest Management Program, 2019)
      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 ...
    • Disease and Insect Resistant Ornamental Plants: Euonymus (Euonymus) 

      Thurn, Mary; Lamb, Elizabeth; Eshenaur, Brian (New York State Integrated Pest Management Program, 2019)
      Euonymus is a genus of more than 100 species, mostly native to East Asia, which includes deciduous and evergreen groundcovers, shrubs and small trees. Popular in North American landscapes, they are fast growing and often ...
    • Disease and Insect Resistant Ornamental Plants: Fraxinus (Ash) 

      Thurn, Mary; Lamb, Elizabeth; Eshenaur, Brian (New York State Integrated Pest Management Program, 2019)
      Fraxinus is a genus of medium to large, mostly deciduous ash trees native to Asia and North America. Ashes are common in forests of the eastern United States as well as in urban and suburban landscapes where they were ...
    • Disease and Insect Resistant Ornamental Plants: Hydrangea (Hydrangea) 

      Thurn, Mary; Lamb, Elizabeth; Eshenaur, Brian (New York State Integrated Pest Management Program, 2019)
      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 ...
    • Disease and Insect Resistant Ornamental Plants: Ilex (Holly) 

      Thurn, Mary; Lamb, Elizabeth; Eshenaur, Brian (New York State Integrated Pest Management Program, 2019)
      Ilex is a widely-distributed genus of over 400 species of evergreen or deciduous trees, shrubs and climbers. Holly flowers may be inconspicuous, but their distinctive foliage, colorful fruit and diverse forms provide plenty ...
    • Disease and Insect Resistant Ornamental Plants: Juniperus (Juniper) 

      Thurn, Mary; Lamb, Elizabeth; Eshenaur, Brian (New York State Integrated Pest Management Program, 2019)
      Juniperus is a genus of about 60 species of conifer trees, shrubs and groundcovers. Junipers are widely grown for their diverse ornamental qualities including needle-like foliage in shades ranging from green to blue. ...
    • Disease and Insect Resistant Ornamental Plants: Lagerstroemia (Crapemyrtle) 

      Thurn, Mary; Lamb, Elizabeth; Eshenaur, Brian (New York State Integrated Pest Management Program, 2019)
      Lagerstroemia is a genus of about 50 species of deciduous shrubs or small trees known as crapemyrtle. Common crapemyrtle, L. indica, is native to China and Southeast Asia and was introduced to the US from China in the ...
    • Disease and Insect Resistant Ornamental Plants: Malus (Flowering Crabapple) 

      Thurn, Mary; Lamb, Elizabeth; Eshenaur, Brian (New York State Integrated Pest Management Program, 2019)
      The genus Malus includes orchard apples and crabapples. They are closely related, differing mainly in fruit size. Flowering crabapples are one of the most widely grown small ornamental trees in the Northeast and Midwest. ...
    • Disease and Insect Resistant Ornamental Plants: Prunus (Prunus) 

      Thurn, Mary; Lamb, Elizabeth; Eshenaur, Brian (New York State Integrated Pest Management Program, 2019)
      Prunus is a large genus of over 400 species and hybrids in the rose family which includes apricots, nectarines, peaches, cherries, plums and almonds. Stone fruit trees are important agricultural crops, but many are also ...
    • Disease and Insect Resistant Ornamental Plants: Pyracantha (Firethorn) 

      Thurn, Mary; Lamb, Elizabeth; Eshenaur, Brian (New York State Integrated Pest Management Program, 2019)
      Pyracantha is a small genus of spiny evergreen shrubs in the rose family. White flowers are followed by a showy display of bright red, orange or yellow fruit which persist into fall and winter. Aside from their ornamental ...
    • Disease and Insect Resistant Ornamental Plants: Pyrus (Pear) 

      Thurn, Mary; Lamb, Elizabeth; Eshenaur, Brian (New York State Integrated Pest Management Program, 2019)
      Pyrus is a large genus of shrubs and trees in the rose family. Pyrus communis, the common or European pear, is grown for its edible fruit. Pyrus calleryana, or Callery pear, originally imported from China to breed fire ...
    • Disease and Insect Resistant Ornamental Plants: Quercus (Oak) 

      Thurn, Mary; Lamb, Elizabeth; Eshenaur, Brian (New York State Integrated Pest Management Program, 2019)
      Quercus is a large genus containing hundreds of species of trees and shrubs commonly known as oaks. Found worldwide, oaks are one of the most versatile and widely used landscape plants. Oaks can be divided into two main ...
    • Disease and Insect Resistant Ornamental Plants: Rhaphiolepis (Indian Hawthorn) 

      Thurn, Mary; Lamb, Elizabeth; Eshenaur, Brian (New York State Integrated Pest Management Program, 2019)
      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. ...
    • Disease and Insect Resistant Ornamental Plants: Rhododendron (Rhododendron) 

      Thurn, Mary; Lamb, Elizabeth; Eshenaur, Brian (New York State Integrated Pest Management Program, 2019)
      Rhododendron is a large genus, which includes rhododendrons and azaleas, of more than 1,000 species of shrubs and small trees in the family Ericaceae. Prized for their glossy foliage and showy clusters of blooms, Rhododendron ...
    • Disease and Insect Resistant Ornamental Plants: Rosa (Rose) 

      Thurn, Mary; Lamb, Elizabeth; Eshenaur, Brian (New York State Integrated Pest Management Program, 2019)
      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. ...