Abstract
Studies on the kola nut weevil, Balanogastris kolae (Desbr.) with gamma radiation showed that 20 krad effectively caused high larval mortality and prevented pupation. Dead larvae became soft and bluishblack and, occasionally, dry and brown. Percentage adult emergence from irradiated pupae, longevity and fecundity of emerging adults provided the basis for evaluating the effectiveness of the ionizing radiation. Mean survival and adult emergence from young pupae irradiated with 20 krad was 6 and 2 percent, respectively, in contrast to 86 and 8 percent, respectively, in old pupae given the same dosage. Old pupae (3-5 days old) showed some tolerance to gamma radiation and over 20 krad was required to prevent adult emergence. Gamma radiation seriously reduced longevity to an average of 6 and 15 days, respectively, in pre- and post-emergence irradiated adults in contrast to 44 days in the control. Distortion of the membranous hind wings were some of the adverse effects observed in adults that emerged from irradiated pupae. Reproduction and oviposition was seriously impaired by irradiation before or immediately after emergence. The opinion of a panel of experienced kola nut testers was that gamma irradiation did not alter the taste or flavour of the kola nuts and no
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Ivbijaro, M F
[1]
- Ibadan Univ. (Nigeria)
Citation Formats
Ivbijaro, M F.
Effects of gamma radiation on the kola nut weevil, Balanogastris kolae (Desbr. ) (Coleopera: Curculionidae).
India: N. p.,
1977.
Web.
Ivbijaro, M F.
Effects of gamma radiation on the kola nut weevil, Balanogastris kolae (Desbr. ) (Coleopera: Curculionidae).
India.
Ivbijaro, M F.
1977.
"Effects of gamma radiation on the kola nut weevil, Balanogastris kolae (Desbr. ) (Coleopera: Curculionidae)."
India.
@misc{etde_6179586,
title = {Effects of gamma radiation on the kola nut weevil, Balanogastris kolae (Desbr. ) (Coleopera: Curculionidae)}
author = {Ivbijaro, M F}
abstractNote = {Studies on the kola nut weevil, Balanogastris kolae (Desbr.) with gamma radiation showed that 20 krad effectively caused high larval mortality and prevented pupation. Dead larvae became soft and bluishblack and, occasionally, dry and brown. Percentage adult emergence from irradiated pupae, longevity and fecundity of emerging adults provided the basis for evaluating the effectiveness of the ionizing radiation. Mean survival and adult emergence from young pupae irradiated with 20 krad was 6 and 2 percent, respectively, in contrast to 86 and 8 percent, respectively, in old pupae given the same dosage. Old pupae (3-5 days old) showed some tolerance to gamma radiation and over 20 krad was required to prevent adult emergence. Gamma radiation seriously reduced longevity to an average of 6 and 15 days, respectively, in pre- and post-emergence irradiated adults in contrast to 44 days in the control. Distortion of the membranous hind wings were some of the adverse effects observed in adults that emerged from irradiated pupae. Reproduction and oviposition was seriously impaired by irradiation before or immediately after emergence. The opinion of a panel of experienced kola nut testers was that gamma irradiation did not alter the taste or flavour of the kola nuts and no change was observed in the colour or texture of the irradiated nuts.}
journal = []
volume = {6:3}
journal type = {AC}
place = {India}
year = {1977}
month = {Sep}
}
title = {Effects of gamma radiation on the kola nut weevil, Balanogastris kolae (Desbr. ) (Coleopera: Curculionidae)}
author = {Ivbijaro, M F}
abstractNote = {Studies on the kola nut weevil, Balanogastris kolae (Desbr.) with gamma radiation showed that 20 krad effectively caused high larval mortality and prevented pupation. Dead larvae became soft and bluishblack and, occasionally, dry and brown. Percentage adult emergence from irradiated pupae, longevity and fecundity of emerging adults provided the basis for evaluating the effectiveness of the ionizing radiation. Mean survival and adult emergence from young pupae irradiated with 20 krad was 6 and 2 percent, respectively, in contrast to 86 and 8 percent, respectively, in old pupae given the same dosage. Old pupae (3-5 days old) showed some tolerance to gamma radiation and over 20 krad was required to prevent adult emergence. Gamma radiation seriously reduced longevity to an average of 6 and 15 days, respectively, in pre- and post-emergence irradiated adults in contrast to 44 days in the control. Distortion of the membranous hind wings were some of the adverse effects observed in adults that emerged from irradiated pupae. Reproduction and oviposition was seriously impaired by irradiation before or immediately after emergence. The opinion of a panel of experienced kola nut testers was that gamma irradiation did not alter the taste or flavour of the kola nuts and no change was observed in the colour or texture of the irradiated nuts.}
journal = []
volume = {6:3}
journal type = {AC}
place = {India}
year = {1977}
month = {Sep}
}