HOME >> BIOLOGY >> NEWS
Vineyard weeds found to host Pierce's disease of grapes

St. Paul, Minn. (September 21, 2005) New research just released in the September issue of Plant Disease suggests that weeds commonly found in California's wine country may enable the spread of Pierce's disease of grapes, one of the most destructive plant diseases affecting grapes.

Pierce's disease is caused by Xylella fastidiosa, a bacterium transmitted by sharpshooters and spittlebugs. In response to outbreaks of Pierce's disease in central California, plant pathologists studied 29 weed species commonly found in California's San Joaquin Valley to see if the bacterium could survive on the weeds. Perennials and known feeding and breeding hosts of the glassy-winged sharpshooter were tested first, then plants particularly abundant in or near vineyards.

"Our objectives were to determine the fate of Pierce's disease infections in previously untested plant species associated with southern San Joaquin Valley vineyards, and compare survival of the infections in selected field and greenhouse-grown plants," said Christina Wistrom, staff research associate in the Department of Environmental Science, Policy and Management, University of California, Berkeley, CA.

The study revealed that environmental conditions have a major impact on bacterial growth in host plants. "Multiplication and systemic movement of X. fastidiosa varied among different plant species and environmental conditions, so weed species in vineyards must be evaluated on an individual basis to determine their potential contribution to Pierce's disease," Wistrom said. "Currently, Pierce's disease is controlled by reducing populations of the insect vector, either through insecticide sprays or habitat modification to remove insect breeding host plants. Our study reinforces the need for weed control in irrigation ditches and roadsides adjacent to vineyards, in regions with chronic Pierce's disease and established populations of sharpshooters, especially in warm weather," she said.

The
'"/>

Contact: Amy Steigman
asteigman@scisoc.org
651-994-3802
American Phytopathological Society
21-Sep-2005


Page: 1 2

Related biology news :

1. Fight weeds with plant pathogens
2. Why are there so many weeds in your garden this year?
3. Waters off Washington state only second place in world where glass sponge reefs found
4. First new multiple sclerosis gene found in 30 years
5. Obesity found to be a risk factor for multiple myeloma
6. Antibody-altering protein found in developing B cells
7. New use for a cell toxin found to inhibit survival proteins in cancer cells
8. New way to target and kill antibiotic-resistant bacteria found
9. Soil particles found to boost prions capacity to infect
10. Support for chromosomal theory of cancer found in cancers development of drug resistance
11. Massive herds of animals found to still exist in Southern Sudan

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/24/2017)... Mar 24, 2017 Research and Markets has ... Market Analysis & Trends - Industry Forecast to 2025" report ... ... at a CAGR of around 15.1% over the next decade to ... report analyzes the market estimates and forecasts for all the given ...
(Date:3/22/2017)... , March 21, 2017   Neurotechnology ... object recognition technologies, today announced the release of ... (SDK), which provides improved facial recognition using up ... on a single computer. The new version uses ... improve accuracy, and it utilizes a Graphing Processing ...
(Date:3/20/2017)... , March 20, 2017 At this year,s CeBIT ... -based biometrics manufacturer DERMALOG. The Chancellor came to the DERMALOG stand together ... is this year,s CeBIT partner country. At the largest German biometrics company ... use: fingerprint, face and iris recognition as well as DERMALOG´s multi-biometrics system.   ... ...
Breaking Biology News(10 mins):
(Date:5/24/2017)... USA (PRWEB) , ... May 23, 2017 , ... Federal ... as well as an enabler of life-saving medical and other vital technologies — deserves ... . They joined others in the scientific community today in responding to the President’s ...
(Date:5/23/2017)... (PRWEB) , ... May 23, 2017 , ... ... FileSend, a cloud-based file transfer solution that makes it easy for organizations to ... having to worry about cumbersome FTP software or email file size limitations. ...
(Date:5/23/2017)... Basel, Switzerland (PRWEB) , ... May 23, 2017 ... ... for R&D, celebrates this month its 20th anniversary, marking the occasion with a ... is sponsoring the meeting’s Welcome Reception and further extends an invitation to all ...
(Date:5/23/2017)... ... May 23, 2017 , ... Vortex Biosciences , ... “Label-free isolation of prostate circulating tumor cells using Vortex microfluidic technology ” in Nature ... a collaboration with Dr. Dino Di Carlo and Dr. Matthew Rettig at the University ...
Breaking Biology Technology:
Cached News: