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The intrinsic activity of combinations of methoprene and chlorfluazuron and methoprene and fipronil was determined against larval cat fleas, Ctenochephalides felis (Bouché). Methoprene synergized the activity of the IGR chlorfluazuron and the adulticide fipronil. The LC50s of chlorfluazuron, fiproni...

As part of an investigation into the potential public health threats posed by infestations of the urban house mouse (Mus domesticus) in the UK, 200 mice were trapped and screened for the presence of a number of zoonotic diseases. Results indicated that none of the mice were infected with Strongyloid...

In natural environments, female cat fleas, Ctenocephalides felis (Bouché), produce blood feces and eggs after the first blood-feeding. The daily fecal production of a virgin male cat flea was 0.0503 mg, significantly less than that of a virgin female 0.8546 mg. Approximately 74% of eggs laid by mate...

Mass production of cat fleas, Ctenocephalides felis (Bouché), in laboratory is required when a large number of individuals must be supplied consecutively for insecticide tests or other biological research. To keep a flea colony in high quality and stable condition, the larval diet must contain suffi...

The oriental rat flea, Xenopsylla cheopis, was considered the parasite of the two rat species in Israel, Rattus norvegicus and Rattus rattus, in their area of common distribution along the coastal plain. This flea does not exist on R. rattus which is found in the interior of the country. After R. no...

The cat flea, Ctenocephalides felis (Bouché), is a seasonal ectoparasite of domestic and feral mammals worldwide. Adult fleas are generally most abundant during the warm spring and summer months, becoming scarce or absent during the cold winter months. However, reinfestations of unknown origin are c...

Fenthion (Tiguvon®, Bayer AG) is an effective insecticidal compound with a residual effect for the control of fleas in dogs and cats. Fenthion belongs to the organophosphorus group of compounds, which are inhibitors of cholinesterases and have a systemic effect. This effect can be observed within 4 ...

By the year 2025 about 61% of the world’s population will be living in urban areas, especially in developing countries. The urban population will double from 2.4 billion in 1995 to 5 billion in 2025. The world’s urban population is growing 2.5 times faster than the rural population. The impact on he...

Ectoparasites of the common house rat, Rattus rattus diardii from Kuala Lumpur city, Malaysia was investigated. The study was conducted over a period of one year. 73'% of the rats harboured the flea Xenopsylla cheopis, followed by mites Laelaps echidninus 64%, L.nuttalli 31% and lice Polyplax spinul...

Laboratory comparisons of pyrethroid toxicities on a range of insect pests demonstrated greater kill activity than expected for the photolabile allethrin series compounds relative to other pyrethroids. Further investigation in chamber and warehouse trials confirmed the utility of S-bioallethrin in s...

Currently 3 insect growth regulators either are or soon will be labelled as on-animal treatments to control fleas on pets and livestock. These chemicals, fenoxycarb, methoprene and pyriproxyfen are juvenile hormone mimics that disrupt embryonic and post-embryonic development when present during cert...

Adult cat fleas often survive several weeks without feeding. However, when newly emerged adults were maintained on filter paper treated with pyriproxyfen at 1.1 pg/cm, they lived only 8 days, compared with low mortality in the controls. Dying fleas examined histologically showed evidence of fat body...