Journal of Biological Control

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Seasonal Incidence of Beauveria bassiana on Gargara mixta Buckton (Hemiptera: Membracidae) and B. Brongniartii on Chrysomelids (Coleoptera: Chrysomelidae) in the Central Forest Circle of Kerala


Affiliations
1 Forest Protection Division, Kerala Forest Research Institute, Peechi 680653, Kerala, India
 

Surveys for entomopathogenic fungi in the central forest circle of Kerala revealed the seasonal incidence of Beauveria bassiana in small pockets on Gargara mixta Buckton (Hemiptera: Membracidae) feeding on the leaves of Helicteres isora (Sterculiaceae) in the moist deciduous forests (MDF) at Vazhachal. Incidence of B. brongniartii on chrysomelid beetles (Coleoptera) feeding on teak leaves was also observed in small pockets in teak plantations. Infection was prevalent during post-monsoon months. The infection due to B. bassiana and B. brongniartii ranged from 36.8 to 100 and 45.5 to 100 per cent, respectively. The seasonal incidence of naturally occurring entomofungal pathogens, B. bassiana and B. brongniartii form small scale epizootics in nature under favourable environmental conditions. Such virulent pathogens can be exploited in pest control programmes.

Keywords

Entomopathogenic Fungi, Beauveria bassiana, Beauveria brongniartii, Gargara mixta.
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  • Seasonal Incidence of Beauveria bassiana on Gargara mixta Buckton (Hemiptera: Membracidae) and B. Brongniartii on Chrysomelids (Coleoptera: Chrysomelidae) in the Central Forest Circle of Kerala

Abstract Views: 206  |  PDF Views: 114

Authors

R. F. Juliya
Forest Protection Division, Kerala Forest Research Institute, Peechi 680653, Kerala, India
R. V. Varma
Forest Protection Division, Kerala Forest Research Institute, Peechi 680653, Kerala, India

Abstract


Surveys for entomopathogenic fungi in the central forest circle of Kerala revealed the seasonal incidence of Beauveria bassiana in small pockets on Gargara mixta Buckton (Hemiptera: Membracidae) feeding on the leaves of Helicteres isora (Sterculiaceae) in the moist deciduous forests (MDF) at Vazhachal. Incidence of B. brongniartii on chrysomelid beetles (Coleoptera) feeding on teak leaves was also observed in small pockets in teak plantations. Infection was prevalent during post-monsoon months. The infection due to B. bassiana and B. brongniartii ranged from 36.8 to 100 and 45.5 to 100 per cent, respectively. The seasonal incidence of naturally occurring entomofungal pathogens, B. bassiana and B. brongniartii form small scale epizootics in nature under favourable environmental conditions. Such virulent pathogens can be exploited in pest control programmes.

Keywords


Entomopathogenic Fungi, Beauveria bassiana, Beauveria brongniartii, Gargara mixta.

References