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:
TAG: Vineyard weeds found host Pierce disease grapes

(Date:8/28/2014)... Athens, Ga. The support of peer groups ... effective breastfeeding programs, according to recent University of ... mothers in the Athens-Clarke County area determined that ... the outcomes of mothers of infants. , "Mothers ... be successful at breastfeeding," said study co-author Alex ...
(Date:8/28/2014)... , Aug. 28, 2014  Privacy Advocate and ... Jennifer Lynch , joins the lineup of biometric ... second annual Biometrics UnPlugged Executive Summit in ... Previously announced speakers include Steven Rahman, Director, Technology ... Public Sector at Experian. The theme of this year,s ...
(Date:8/28/2014)... (Maximizing Access to Research Careers) Program has announced ... of Sports Medicine,s Conference on Integrative Physiology of ... These awards are meant to promote the ... underrepresented groups into the mainstream of the basic ... young scientists at the American College of Sports ...
Breaking Biology News(10 mins):Breastfeeding study shows need for effective peer counseling programs 2Biometrics UnPlugged Welcomes the Electronic Frontier Foundation's Jennifer Lynch to the Mobility at the Crossroads of Commerce and Privacy Summit 2
(Date:8/28/2014)... USA (PRWEB) August 28, 2014 SPIE ... of Physics and Optical Science and Director of the ... of North Carolina at Charlotte, and co-founder and Chairman ... to serve as the 2015 Vice President of SPIE, ... 2014 President Philip Stahl announced recent election results at ...
(Date:8/28/2014)... new research platform uses a laser to ... undergoing stress and heating, an approach likely ... microelectronics and batteries., This new technique, called ... heating and the surface stress of microscale ... discussed the merits of surface-stress influence on ...
(Date:8/28/2014)... 28, 2014  Next month, executives from clinical trial marketing ... events beginning with Patient-Centered Clinical Trials 2014 , to ... Boston , September 4-5. Patient recruitment experts Bonnie ... Fleishman will share insights on the benefits of employing ... tactics – from media to mobile apps – can be ...
(Date:8/28/2014)... Florida State University research team has led to a ... white light, and convert photon energy directly to mechanical ... , Biwu Ma, associate professor in the Department of ... Engineering, created the molecule in a lab about a ... creation has many other unique capabilities. , For example, ...
Breaking Biology Technology:Glenn Boreman, UNC Professor and Plasmonics Co-Founder, Elected to SPIE Presidential Chain 2New analytical technology reveals 'nanomechanical' surface traits 2New analytical technology reveals 'nanomechanical' surface traits 3BBK Worldwide Leads Sessions at Key September Events 2Novel 'butterfly' molecule could build new sensors, photoenergy conversion devices 2
Cached News: