Development of a larval bioassay for susceptibility of cat fleas (Siphonaptera: Pulicidae) to imidacloprid.
نویسندگان
چکیده
Strategies for controlling cat fleas, Ctenocephalidesfelisfelis (Bouché), have undergone dramatic changes in the past 5 yr. With the advent of on-animal treatments with residual activity the potential for the development of insecticide resistance increases. A larval bioassay was developed to determine the baseline susceptibility of field-collected strains of cat fleas to imidacloprid. All four laboratory strains tested showed a similar level of susceptibility to imidacloprid. Advantages of this bioassay are that smaller numbers of fleas are required because flea eggs are collected for the test. Insect growth regulators and other novel insecticides can also be evaluated. Using a discriminating dose, the detection of reduced susceptibility in field strains can be determined with as few as 40 eggs.
منابع مشابه
Large-scale monitoring of imidacloprid susceptibility in the cat flea, Ctenocephalides felis.
Although on-animal topical treatment with compounds such as imidacloprid has revolutionized the control of the cat flea, Ctenocephalides felis (Bouché) (Siphonaptera: Pulicidae), the development of insecticide resistance is a continuing threat. As part of a highly co-ordinated and unprecedented resistance monitoring programme for C. felis, 1437 flea isolates were collected by veterinary clinics...
متن کاملDevelopment of microsatellites for genetic analyses and population assignment of the cat flea (Siphonaptera: Pulicidae).
Cat fleas, Ctenocephalidesfelis (Bouché) (Siphonaptera: Pulicidae), are common ectoparasites of companion animals that negatively impact their hosts directly by causing dermatitis and blood loss during feeding and indirectly through the potential transmission of disease causing agents. We isolated and characterized seven novel microsatellite loci from a partial genomic library of the cat flea e...
متن کاملAdult cat flea (Siphonaptera: Pulicidae) excretion of host blood proteins in relation to larval nutrition.
Protein content and ion composition of host blood and feces from blood-fed adult cat fleas, Ctenocephalides felis (Bouché), were examined. Total fecal protein differed slightly from host blood indicating that there was little digestion of host blood by adult fleas. Sodium dodecyl sulfate-polyacrylamide gel electrophoresis gels of host blood and flea feces also revealed little digestion, as evid...
متن کاملInfluence of temperature and humidity on survival and development of the cat flea, Ctenocephalides felis (Siphonaptera: Pulicidae).
The survival and development of the cat flea, Ctenocephalides felis, were assessed at various temperatures and relative humidities (RH). The upper and lower temperature limits for development (egg to adult) were 32 and 13 °C. The length of the developmental period ranged from 14 to 140 days at these temperature extremes. Complete development occurred from 50-92% RH. Immature C. felis reared at ...
متن کاملThe effects of diet upon pupal development and cocoon formation by the cat flea (Siphonaptera: Pulicidae).
Cocoon formation by cat flea larvae was directly related to the quantity of eggs or yeast consumed. Larvae consuming either 1-3 eggs or 0.25-1.0 mg of yeast developed as naked pupae or formed incomplete cocoons. Third instar cat flea larvae fed upon naked pupae and pupae within partial cocoons, but complete cocoons protected pupae from cannibalism. First and second instars did not attack pupae....
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ورودعنوان ژورنال:
- Journal of medical entomology
دوره 39 4 شماره
صفحات -
تاریخ انتشار 2002