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Studies on the Fecundity and Longevity of Cyrtobagous salviniae (Coleoptera:Curculionidae), an Effective Biocontrol Agent of Salvinia molesta in India


Affiliations
1 Division of Entomology and Nematology, Indian Institute of Horticultural Research, Bangalore 50 089, India
 

Cyrtobagous salviniae Calder and Sands (Coleoptera: Curculionidae), of Brazilian origin, is an effective biocontrol agent of the floating aquatic weed Salvinia molesta D.S. Mitchell in India. Laboratory studies on the fecundity and longevity of the weevils showed that the females lived for 231 days (average) and laid 290 eggs (average). Thc mean daily egg production per female was 1.08. Egg laying in C. salviniae was distributed uniformly throughout the life of thc adult.

Keywords

Salvinia molesta, Cyrtobagous salviniae, Fecundity, Longevity.
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  • Studies on the Fecundity and Longevity of Cyrtobagous salviniae (Coleoptera:Curculionidae), an Effective Biocontrol Agent of Salvinia molesta in India

Abstract Views: 169  |  PDF Views: 102

Authors

K. P. Jayanth
Division of Entomology and Nematology, Indian Institute of Horticultural Research, Bangalore 50 089, India

Abstract


Cyrtobagous salviniae Calder and Sands (Coleoptera: Curculionidae), of Brazilian origin, is an effective biocontrol agent of the floating aquatic weed Salvinia molesta D.S. Mitchell in India. Laboratory studies on the fecundity and longevity of the weevils showed that the females lived for 231 days (average) and laid 290 eggs (average). Thc mean daily egg production per female was 1.08. Egg laying in C. salviniae was distributed uniformly throughout the life of thc adult.

Keywords


Salvinia molesta, Cyrtobagous salviniae, Fecundity, Longevity.