Citation
Yusof bin Ibrahim, . and Wong K.Y., . The effects of carbaryl exposures to growth and reproduction of Aphis craccivora Koch. pp. 43-46. ISSN 0126-6128
Abstract
The effects of several concentrations of carbaryl on the life-table parameters of Aphis craccivora Koch were studied. It was revealed that all the early nymphal instars died after being exposed to carbayrl at concentration in excess of 0.0106 a.i. Exposures at this concentration however resulted in a 3-day delay in reproduction in 3 of the tested population and experienced a significantly shorter life span of 10 days when compared to 29 days in the control. Values for the life-table parameters also indicated that these populations would not grow and thus would be unable to continue into the next generation. In contrast 8 of the population exposed to 0.0052 a.i. reached adulthood 40 for those exposed to 0.0027 a.i. and 68 for those at 0.0013 a.i.
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Abstract
The effects of several concentrations of carbaryl on the life-table parameters of Aphis craccivora Koch were studied. It was revealed that all the early nymphal instars died after being exposed to carbayrl at concentration in excess of 0.0106 a.i. Exposures at this concentration however resulted in a 3-day delay in reproduction in 3 of the tested population and experienced a significantly shorter life span of 10 days when compared to 29 days in the control. Values for the life-table parameters also indicated that these populations would not grow and thus would be unable to continue into the next generation. In contrast 8 of the population exposed to 0.0052 a.i. reached adulthood 40 for those exposed to 0.0027 a.i. and 68 for those at 0.0013 a.i.
Additional Metadata
Item Type: | Article |
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Additional Information: | 2 graphs; 1 table; 8 ref. Summary (En Malay) |
AGROVOC Term: | APHIS |
AGROVOC Term: | INSECTICIDAS |
AGROVOC Term: | CICLO VITAL |
Depositing User: | Ms. Norfaezah Khomsan |
Last Modified: | 24 Apr 2025 05:55 |
URI: | http://webagris.upm.edu.my/id/eprint/19843 |
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