Question - What does the glassy winged sharpshooter do?

Answered by: Brenda Roberts  |  Category: General  |  Last Updated: 28-06-2022  |  Views: 914  |  Total Questions: 4

The glassy-winged sharpshooter is a large leafhopper that obtains its nutrients by feeding on plant fluids in the xylem, the water-conducting tissues of a plant. A healthy population of beneficial insects is the single most effective way to control sharpshooters. One of the most effective is a small wasp that feeds on the pest's egg masses. Praying mantis, assassin bugs and lacewingsare also extremely beneficial at managing glassy winged sharpshooters. Cultural Methods for Prevention You are less likely to spread Pierce's disease if you prune your grapes when they are dormant. It is very important to disinfect your pruning shears. Disinfect them in 10% bleach between plants, so you don't spread the disease. The Situation: The glassy-winged sharpshooter (GWSS), likely introduced from the southeastern U. S. as eggs on nursery stock, was first observed in Orange and Ventura counties in California in 1989. Even more important is the capacity for the GWSS to acquire and spread a plant pathogenic bacterium, Xylella fastidiosa. The glassy-winged sharpshooter feeds on a wide variety of plants. Scientists estimate the host plants for this sharpshooter include over 70 different plant species. Among the hosts are grapes, citrus trees, almonds, stone fruit, and oleanders.

The glassy-winged sharpshooter, Homalodisca vitripennis (Germar), is a large leafhopper species native to the southeastern United States.

The disease is caused by the bacterium Xylella fastidiosa. Xyllela fastidiosa is a gram-negative bacterium that survives and multiplies in the water-conducting elements (xylem) of grapevines. The bacterium has a broad host range with more than 100 known plant hosts.

Symptoms: Pierce's Disease is caused by a bacterium that lives in the xylem (water-conducting) cells of plants. The symptoms are observed in late summer and fall and include marginal leaf scorch (browning) that is frequently bordered by a red or yellow halo.

Pierce's disease (PD) is a disease that affects grapevines (Vitis vinifera). The disease is prevalent across the United States (US), from Florida to California, and threatens the country's $30 billion wine industry (Sanscartier et al., 2012).