rearing methods for bracon hebetor (say) (hym., braconidae) were investigated in the series of laboratory experiments designed to enhance the yield of the mass rearing of this parasitoid for biological control of lepidopteran field and stored product pests. in these experiments, the effects of parasitoid and host densities on fertility and sex ratio of b. hebetor were assessed. in parasitoid de...

This study focuses on the freshwater factors affecting Western Alaska Chinook salmon productivity through three complementary studies: a retrospective study of salmon scales examining the relationship between freshwater growth and survival to adulthood, a study of the persistent effects of infection of adults with the parasite Ichthyophonus on their offspring, and laboratory rearing experiments...

Organisms that share the same genotype can develop into divergent phenotypes, depending on environmental conditions. In Atlantic salmon, young males of the same age can be found either as sneakers or immature males that are future anadromous fish. Just as the organism-level phenotype varies between divergent male developmental trajectories, brain gene expression is expected to vary as well. We ...

The present study records the first successful colonization of Mansonia annulata and describes colony maintenance with modification of rearing medium and host plants. Three species of Mansonia mosquitoes (Ma. uniformis, Ma. indiana and Ma annulifera) were successfully reared in ambient environments with adult emergence rates > 50%, while Ma. bonneae and Ma. dives yielded emergence rates > 30%. ...

The insecticide susceptibility status of one of the Background: Anopheles funestus, main malaria vectors in the Afrotropical regions, remains under-studied due to the difficulty of working with this mosquito species. Collecting their larvae in natural breeding sites, rearing and maintaining them in normal laboratory conditions have been a difficult task. Forced-egg laying technique has been a v...

Background:  The insecticide susceptibility status of Anopheles funestus, one of the main malaria vectors in the Afrotropical regions, remains under-studied due to the difficulty of working with this mosquito species. Collecting their larvae in natural breeding sites, rearing and maintaining them in normal laboratory conditions have been a difficult task. Forced-egg laying technique has been a ...

The objective of the present work was to design a rearing method for the Moroccan or Mediterranean locust Dociostaurus maroccanus and to breed it. The duration of the post-embryonic development from N1 to adult ranged between 35 and 38 days, independently of whether nymphs were reared at constant temperature or in cages with incandescent light bulbs that a€ord heat for thermo-regulation. In con...

In the study of arthropods in poultry manure, the key predator of house fly larvae encountered was the beetle Carcinops pumilio Erichson (Coleoptera: Histeridae) (Achiano and Giliomee, 2003, 2005a, b, 2006a, b). It is also considered as a major predator in the suppression of synanthropic flies in poultry houses in the USA (Legner, 1971; Geden and Stoffolano, 1987) and in Britain (Bills 1973, Co...