Heterorhabdilis indicus (RCR), AS A POTENTIAL BIOCONTROL AGENT OF GRAPE FLEA BEETLE, Sceledonta strigicollis M. (COLEOPTERA: CHRYSOMELIDAE)

A. PRABHURAJ, B.V. PATIL, SHIVA LEELA, K.S. GIRISH

Abstract


Flea beetle, Sceierlonm srrfgicollis M.  (Coleoptera: Chrysomelidae) is a serious pest in  grape. Both adults and grubs are the damaging  stages. Adults are small reddish brown in colour  with six spots on the clytra. They often inflict  serious damage to grapevine by feeding on  leaves and tender buds. The female beetle  oviposits on the bark or in the soil and eggs may  be laid singly or in groups. The grubs hatch in  four days and feed on roots. The grub pupates  in an earthen shell and emerge as adult in about  two weeks. The life cycle takes about two months  (David and Kumaraswamy, 1991). It is often  difficult to control this pest with insecticides  alone.


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