tailieunhanh - Insecticides Pest Engineering Part 15

Tham khảo tài liệu 'insecticides pest engineering part 15', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 18 Effects of Kaolin Particle Film and Imidacloprid on Glassy-Winged Sharpshooter Homalodisca vitripennis Hemiptera Cicadellidae Populations and the Prevention of Spread of Xylella fastidiosa in Grape . Tubajika1 . Puterka2 . Toscano3 J. Chen4 and . Civerolo4 1United States Department of Agriculture USDA Animal and Plant Inspection Service APHIS Plant Protection and Quarantine PPQ Center for Plant Health Science and Technology CPHST Raleigh North Carolina 2United States Department of Agriculture USDA Agricultural Research Service ARS Stillwater Oklahoma Department of Entomology University of California Riverside California 4United States Department of Agriculture USDA Agricultural Research Service ARS San Joaquin Valley Agricultural Sciences Center SJVSC Parlier California USA 1. Introduction The glassy-winged sharpshooter GWSS Homalodisca vitripennis Germar Hemiptera Cicadellidae is a major pest of important agronomic horticultural landscape ornamental crops and native trees in California Blua et al. 1999 Purcell et al. 1999 Purcell Saunders 1999 . This insect is an invasive species in California that was first detected in the state in 1989 Sorensen Gill 1996 . This sharpshooter is a key vector of Xylella fastidiosa and has changed the epidemiology of X. fastidiosa Xf diseases affecting important agronomic and horticultural crops as well as landscape ornamental and native trees in California based on the infection of these crops by the bacteria Blua et al. 1999 Purcell et al. 1999 Purcell Saunders 1999 Fig. 1 . It is not clear if management strategies for Pierce s Disease PD developed in GWSS-free regions of California are suitable to manage the disease in vineyards where GWSS has become established. Data from earlier studies suggest that GWSS has continued to increase in number population density and geographical range in California Purcell Saunders 1999 Tubajika et al. 2004 . GWSS populations are widely distributed over a large number of hosts .

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