Impact of glassy-winged sharpshooter on orange fruit …

full-text (pdf) | biological control of glassy-winged sharpshooter in california

IMPACT OF GLASSY-WINGED SHARPSHOOTER ON ORANGE FRUIT SIZE AND QUALITY

Glassy-winged sharpshooters were collected from seven vineyards in the areas surrounding Fredericksburg, Texas using Seabright Laboratories () sticky traps. Traps were set up in vineyards and then removed approximately two weeks later. All H. vitripennis caught on the traps were removed and labeled appropriately according to location and date (n = 50 insects). The time period of collection was between 26 May 2009 and 24 June 2009. This time period was used because this is when an “influx” of insects is known to occur consistently every year (). The age of the insects were relevant because if they were young insects it would add weight to existing theories that F1 generation adults (F0 being the overwintering parents) have recently emerged and are actively searching suitable host plants. In two of the vineyards (labeled B and D), samples were collected approximately one month apart in order to compare the ages within the same vineyard. The wings of each H. vitripennis were removed and photographed as previously described.

7. Purcell, A. H., and Saunders, S. R. 1999. Glassy-winged sharpshooters expected to increase plant disease. Calif. Agric. 53:26-27.

Kaolin Clay for Management of Glassy-winged Sharpshooter in Grapes

Gleeson, P., Dlott, J., Ohmar, C. and M. Zeiss. 2004. Final Report to CDFA: Pierce’s Disease and Glassy-winged Sharpshooter Research Evaluation. Contract 02-0628, January 2003-January 2004. American Vineyard Foundation, Napa, CA and RealToolbox, Soquel, CA.

Paterka, G. J., and M. Reinke. 2003. Particle film, Surround WP, effects on Glassy-winged Sharpshooter behavior and its utility as a barrier to

Jetter K, Morse J, Kabashima J. 2014. The cost of the glassy-winged sharpshooter to California grape, citrus and nurseryproducers. Calif Agr 68(4):161-167. .

Fig. 7a. Three-week-old particle film, Surround WP, residues on grape leaves were sufficient to prevent glassy-winged sharpshooter oviposition.


by female glassy-winged sharpshooters increased ..

Puterka, G. J., Reinke, M., Luvisi, D., Ciomperik, M. A., Bartels, D., Wendel, L., and Glenn, D. M. 2003. Particle film, Surround WP, effects on glassy-winged sharpshooter behavior and its utility as a barrier to sharpshooter infestations in grape. Online. Plant Health Progress doi:10.1094/PHP-2003-0321-01-RS.

When the Sleeper Wakes - Project Gutenberg Australia

Glassy-winged sharpshooter (GWSS) was recently introduced into California and poses a serious threat to the grape industry because it is a very effective vector of the bacterium that causes Pierce’s disease. We studied how GWSS was affected by a new technology called particle film, Surround™ WP, that protects plants from insect feeding, oviposition, and infestation by coating the plant surfaces with a protective mineral barrier. In caged field studies, we found that GWSS nymphs and adults were highly repelled by lemon trees treated with Surround WP. Applications of Surround WP turn foliage white; thus, we compared the attractiveness of white and other colors with yellow, which is extremely attractive to GWSS. This study showed that yellow was the most attractive color, followed by orange, and that white was among the least attractive colors, suggesting that Surround WP applications may make plants unrecognizable as hosts. In a field study that compared three biweekly Surround WP treatments to six weekly contact insecticide treatments, Surround WP performed as well as insecticides in reducing GWSS adult numbers and oviposition.

When the Sleeper Wakes, by H.G. Wells, free ebook

Fig. 1. The glassy-winged sharpshooter transmits the bacterium , which causes Pierce’s disease in grape amd eventually results in vine death.

Drawing a bead on sharpshooters - SFGate

Glassy-winged Sharpshooter Bugs (Homalodisca vitripennis) auf Roter Sonnenhut in Mercer Arboretum und der Botanische Garten. Humble (Houston), Texas, 15. Mai 2010