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Research institution specializing in plant pathology and entomology of deciduous fruit trees. Includes photographs of fruit trees afflicted by numerous plagues.
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The white flecking seen on these grape leaves is the result of the grape leafhoppers puncturing the cells on the underside of the leaves and sucking out the sap. The brown splotches are areas of dead tissue resulting from severe injury by this insect.
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1. Monocotyledoneae.-- One seed leaf, flowers in 3's or multiple, leaves parallel veined, vascular bundles scattered and closed. Includes Grasses, Lilies, Irides, Banana, Reeds, Ginger, Palms, etc.
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There are several species of Wild Grape in Virginia, most of which are very similar and difficult to tell apart. Fox Grape (Vitis labrusca), Summer Grape (Vitis aestivalis), and Riverbank Grape (Vitis riparia) are probably the most common species.
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