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Bruck DJ Bolda M Tanigoshi L Klick J Kleiber J DeFrancesco J Gerdeman B Spitler H 《Pest management science》2011,67(11):1375-1385
BACKGROUND: The spotted wing Drosophila, Drosophila suzukii (Matsumura, 1931) (Diptera: Drosophilidae), is an invasive pest of small‐fruit crops. Unlike most other Drosophila, this insect is able to oviposit into and damage ripe and ripening fruit, making it unmarketable. Because this is a new pest in the United States, it is necessary to identify registered insecticides to manage this insect effectively in conventional and organic production systems. RESULTS: The present laboratory bioassays and field trials identified a number of insecticides representing various modes of action that are effective in controlling D. suzukii. Products that performed well in the laboratory bioassay also performed well in the field, indicating that screening of new chemistries in the laboratory is a worthy exercise. Field application of pyrethoids, organophosphates or spinosyns provided 5–14 days of residual control of D. suzukii. The efficacy of the neonicotinoids as adulticides was not satisfactory compared with the other contact‐mode‐of‐action chemistries. Based on the zero tolerance by the small‐fruit industry and the individual effects mentioned above, neonicotinoids are not currently recommended for D. suzukii management. CONCLUSIONS: There are effective insecticides registered for controlling D. suzukii infestations in susceptible small‐fruit crops. Copyright © 2011 Society of Chemical Industry 相似文献
13.
Paul M. Mehrle Laverne Cleveland Denny R. Buckler 《Water, air, and soil pollution》1987,35(1-2):107-118
Larvae of striped bass (Morone saxatilis (Walbaum)) were exposed to a mixture of organic and inorganic contaminants in fresh well water and 2 g L?1 saline water for 30 days and in 5 g L?1 saline water for 90 days. Environmental concentrations (ECs) of organic and inorganic chemicals were estimated for the Chesapeake Bay area. Striped bass were exposed to the EC, 0.25 EC, 0.5 EC, 2 EC, 4 EC, and a solvent control to simulate potential conditions in their spawning and nursery habitats of the Chesapeake Bay. The sensitivities of striped bass as determined by survival depended on the characteristics of the exposure water. Larvae exposed in fresh well water were the most susceptible to the contaminant mixture; the 2 and 4 EC treatments caused significant (P:5 0.05) mortality within 30 days. In the 2 g L?1 salinity water, the 4 EC treatment caused significant mortality after 30 days of exposure. Larvae exposed to the contaminant mixture for 90 days in the 5 g L?1 saline water incurred significant mortality in the 2 and 4 EC treatments. We concluded that the age of the larvae, concentration of the contaminants, and salinity of the environment must be considered in evaluating the influence of environmental contaminants on the decline of striped bass along the east coast. 相似文献
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The case histories of thirty-five dogs with cervical spondylopathy are described with particular emphasis on diagnosis and surgical treatment, with follow-up records of both treated and untreated cases. Some evidence is presented to show that the syndrome is an inherited defect. 相似文献
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Five horses with long incomplete longitudinal fractures of the third metacarpal bone and three horses with similar fractures of the third metatarsal bone were examined. In three of the metacarpal fractures a long incomplete fissure extended proximomedially, in association with the more common lateral condylar fracture of the third metacarpal bone, and in the other two cases the fracture originated from the medial aspect of the distal articular surface. In the three horses with fractures of the third metatarsal bone the fractures had a consistent spiral configuration. 相似文献
18.
The case histories, treatment and post–operative progress of 297 dogs referred to this Department for investigation of stifle conditions between September 1968 and September 1972 are described with particular emphasis on the long term results of treatment. Résumé. Les antécédents commémoratifs, le traitement et les progrès postopératoires de 297 chiens, remis à ce département entre Septembre 1968 et Septembre 1972 pour investigation à l'égard de l'état du grasset, ont été décrits en mettant surtout l'emphase sur les résultats thérapeutiques à long terme. Zusammenfassung. Nachdrùcklich der langfristigen Behandlungsfolgen von Kniegelenke-Zustànden, sind Befunde, Behandlungen und postoperative Fortschritte der, von den zwischen September 1968 und September 1972 diesem Abteil zum Forschungszweck iiberreichten 297 Hunde, mit besonderem Hinweis auf Endergebnisse, dargestellt. 相似文献
19.
Abernethy DA Pfeiffer DU Watt R Denny GO McCullough S McDowell SW 《The Veterinary record》2006,158(21):717-721
Between 1990 and 2000, 317 herds of cattle in Northern Ireland were identified as being seropositive to Brucella abortus, and 68 per cent of them were attributed to transmission from neighbouring herds or to local spread. Of particular significance were three primary outbreaks in 1997, which resulted in significant secondary and tertiary spread. Three spatial clusters were identified, corresponding to two of the primary outbreaks, and the herd density and within-herd spread were highest in the largest cluster. Abortions in an infected herd and the disease-risk status of the disclosure test were positively associated with an increased within-herd prevalence. 相似文献
20.
Denny Irawati Yuya Takashima Chisato Ueda J. P. Gentur Sutapa Sri Nugroho Marsoem Futoshi Ishiguri Kazuya Iizuka Nobuo Yoshizawa Shinso Yokota 《Journal of Wood Science》2013,59(6):522-527
We examined the enzymatic saccharification and ethanol fermentation of the spent media (SMs) from Auricularia polytricha cultivation using wood meals of Falcataria moluccana, Shorea sp., and Tectona grandis. Although the hydrolysis weight decrease and reducing sugar yield were higher in SM of F. moluccana, the ethanol yield was higher in SM of Shorea sp. Ozone treatment of SM further increased the hydrolysis weight decrease, reducing sugar, and ethanol yields in Shorea sp. These results indicate that SM of A. polytricha is a suitable biomass material to produce fermentable sugars for ethanol production, and that ozone treatment is a suitable method for increasing the ethanol yield. 相似文献