The grape cane girdler is one of two Ampeloglypter species which can attack new shoot growth in the spring. It has been reported from throughout the midwestern and eastern United States. Originally this species was described ...

La mosca linterna con manchas (“Spotted Lanternfly”, o SLF en inglés) es un insecto originario de China y el sudeste asiático. Fue descubierta en Nueva York en agosto del 2020 y representa una gran amenaza para gran parte ...

The grape rootworm (abbreviated GR) is a native species of leaf beetle that occurs from the Atlantic Seaboard states to North Dakota, Nebraska, Kansas, and Texas. The wild hosts of this pest are grapes (Vitis spp.), Virginia ...

Grape tumid galls, also called grape tomato galls, are caused by larvae of a small fly known as the grape tumid gallmaker (GTG). This pest is native to the northeastern United States and southeastern Canada. It infests ...

Grapevine red blotch disease (GRBD) is a recently recognized viral disease. It was first described on Vitis vinifera cv. Cabernet Sauvignon at the University of California Oakville Research Field Station in 2008, but the ...

Downy mildew, a fungal disease native to North America, attacks most species of wild and cultivated grape. The disease was inadvertently introduced into European vineyards in the late 1870’s where it devastated the European ...

Botrytis bunch rot and blight of leaves, shoots and blossom clusters, also called gray mold, occurs throughout the viticultural world. The fungus causing the disease grows and reproduces on senescent or dead plant tissue. ...

Three leafhopper species can be found feeding on grapes in the Northeast: Erythroneura comes (Say), commonly known as the grape leafhopper (GLH), E. tricincta Fitch, the threebanded leafhopper, and Empoasca fabae (Harris), ...

The banded grape bug is a sporadic, early-season pest of grapes that feeds on clusters between bud break and bloom. It damages grapes during the period of rapid shoot expansion and flower cluster development. Injury by the ...

Angular leaf scorch was first described in 1985. Its symptoms are similar to those of rotbrenner, a disease of grapevines found in the cool grape-growing regions of Europe such as Austria, Germany, the Alsace and Champagne ...