A new sharpshooter threatens both crops and ornamentals
AuthorsMatthew J. Blua
Phil A. Phillips
Richard A. Redak
Authors AffiliationsM.J. Blua is Research Associate, Department of Entomology, UC Riverside; P.A. Phillips is Area IPM specialist, Ventura County; R.A. Redak is Associate Professor, Department of Entomology, UC Riverside.
Hilgardia 53(2):22-25. DOI:10.3733/ca.v053n02p22. March 1999.
The glassy-winged sharpshooter (Homalodisca coagulata), an insect that has recently invaded California, and the smoke tree sharpshooter (Homalodisca lacerta) are creating serious new economic problems in both agricultural and ornamental plantings. The greatest threats surround their ability to spread the plant-pathogenic bacterium Xylella fastidiosa, which induces Pierce's disease in grapevines, almond leaf scorch disease, and a new disease known as oleander leaf scorch. Because of the potential distribution and large host range of the glassy-winged sharpshooter, other diseases caused by different strains of X. fastidiosa may have an even greater impact on the state's agricultural and ornamental landscape industries in the future.
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Also in this issue:Biological studies of iceplant scales, Pulvinariella Mesembryanthemi and Pulvinaria delottoi (Homoptera: Coccidae), in California
Expanded efforts needed to limit exotic pests
Introduction Special section: exotic pest update
AHB headed to Central Valley?
Fire ant invades Southern California
Medfly - going but not gone
Can integrated methods stop starthistle?
Two new seed head flies attack yellow starthistle
New growth regulator herbicide provides excellent control of yellow starthistle
Success of mowing to control yellow starthistle depends on timing and plant's branching form
Glassy-winged sharpshooters expected to increase plant disease
Early results suggest sterile flies may protect S. California from medfly
Geographic races may exist among perennial grasses
Microsprinklers wet larger soil volume; boost almond yield, tree growth
Improving irrigation systems conserves water in greenhouse-grown cut flowers