Results 141 to 150 of about 385 (174)
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Comparison of artificial diets for rearing Bracon hebetor Say (Hymenoptera: Braconidae)
Biological Control, 2004Abstract The ectoparasitoid Bracon hebetor Say is an insect frequently found in storage facilities, where it attacks stored grain pests. The biology of this parasitoid was studied when reared on seven different artificial diets (in vitro rearing), under controlled temperature (25 ± 2 °C), relative humidity (60 ± 10%), and photoperiod (14-h ...
S.R. Magro, J.R.P. Parra
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Environmental and maternal effects on host selection and parasitism success of Bracon hebetor
BioControl, 2014The biological control programs supporting the native species of natural enemies are far more sustainable than those which use exotic enemies of the target pest. Little is known about the effects of the surrounding environment on host selection behavior of Bracon hebetor Say (Hymenoptera: Braconidae).
Dorna Saadat +3 more
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A Study on the Identity ofBracon hebetorSay andBracon brevicornisWesmael (Hymenoptera: Braconidae)
Bulletin of Entomological Research, 1956Literature, mainly Indian, pertaining to the recorded hosts ofBracon hebetorSay andB. brevicornisWesm., and on the taxonomy of the two species, has been reviewed. Observations on different morphological characters, including the male and female genitalia, which have been used in establishing the identity of the two species, have been made.
M. Puttarudriah, G. P. Channa Basavanna
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Intraspecific Competition in the Population Dynamics of Bracon hebetor Say (Hymenoptera: Braconidae)
Journal of Animal Ecology, 1973Studies of the dynamics of insect populations are often concerned with the interaction between a host and its parasite or predator, potential agents of biological control that may contribute significantly to host mortality in a natural population. Early attempts at modelling the host-parasite inteiaction were confined to simplified situations where ...
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Mutation Research, 1985
Bleomycin (BM) induced dominant-lethal genetic lesions in the gametes of both sexes of adult Bracon hebetor wasps following ingestion. This effect was demonstrated by decreased fertility in the unfertilized eggs of treated females as well as in eggs fertilized by mature sperm derived from treated males.
W L, Wissinger +3 more
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Bleomycin (BM) induced dominant-lethal genetic lesions in the gametes of both sexes of adult Bracon hebetor wasps following ingestion. This effect was demonstrated by decreased fertility in the unfertilized eggs of treated females as well as in eggs fertilized by mature sperm derived from treated males.
W L, Wissinger +3 more
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International Journal of Insect Morphology and Embryology, 1974
DURING a study of some ecological and biological characteristics of the braconid wasp, Bracoll hebelOr Say, we found the information about the seminal vesicle and spermatheca of this insect to be incomplete. Therefore we made observations on the structure and function of these organs. B. hebetor females were reared as parasites of Allagasta kuehlliella
Dan Gerling, Noah Rotary
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DURING a study of some ecological and biological characteristics of the braconid wasp, Bracoll hebelOr Say, we found the information about the seminal vesicle and spermatheca of this insect to be incomplete. Therefore we made observations on the structure and function of these organs. B. hebetor females were reared as parasites of Allagasta kuehlliella
Dan Gerling, Noah Rotary
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Oecologia, 2015
Fungal endosymbionts in plants may influence interactions among plants, herbivores and their parasitoids through the production of secondary metabolites. We used a lepidopteran pest and its generalist parasitoid to test the effect of endophyte-infected plants on a third trophic level. Endophytic fungi, Aspergillus flavus and Aspergillus niger, isolated
Tamanreet Kaur +3 more
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Fungal endosymbionts in plants may influence interactions among plants, herbivores and their parasitoids through the production of secondary metabolites. We used a lepidopteran pest and its generalist parasitoid to test the effect of endophyte-infected plants on a third trophic level. Endophytic fungi, Aspergillus flavus and Aspergillus niger, isolated
Tamanreet Kaur +3 more
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Disruption of antennal morphogenesis in Bracon hebetor by exposure to triethylamine
Archives of Insect Biochemistry and Physiology, 1987AbstractExposing third instar larvae of the wasp Bracon hebetor to triethylamine (TEA) results in malformed antennae in eclosing adults. The purpose of this research was to examine the effects of TEA at the cellular level. Rate of growth of treated antennal buds (56–76 h) and mean size (76–96 h) were significantly reduced.
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Insect Biochemistry and Molecular Biology, 1994
The potency of venom from Bracon hebetor against lepidopterous larvae has been known for over 40 years, but previous attempts to purify and characterize individual protein toxins have been largely unsuccessful. Three protein toxins were purified from venom of this small parasitic wasp and the amino acid sequences of 22-31 consecutive residues at the ...
G B, Quistad +3 more
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The potency of venom from Bracon hebetor against lepidopterous larvae has been known for over 40 years, but previous attempts to purify and characterize individual protein toxins have been largely unsuccessful. Three protein toxins were purified from venom of this small parasitic wasp and the amino acid sequences of 22-31 consecutive residues at the ...
G B, Quistad +3 more
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The effect of the venom of Bracon hebetor on the respiration of the wax moth Galleria mellonella
Journal of Insect Physiology, 1965Abstract The oxygen consumption of Galleria larvae paralysed by Bracon venom has been measured. Injection of 5 μl of venom solution (1 gland/ml) reduced the respiration by about 20 per cent. Increasing the concentration of the injected venom solution to 10 or 100 glands/ml reduced the respiration by about 50 per cent which was of the same order ...
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