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Pests of Grapes :: Major Pests ::Grape Vine Flea Beetle


 

2. Grape Vine Flea Beetle:  Scelodonta strigicollis (Eumolpidae: Coleoptera)

 

Distribution and status: Found all over India.
Host range:

 

Damage symptoms: Adult makes small holes on tender leaves while grubs damage roots.

 

Bionomics
Female lays 220 – 550 eggs, 4-7 cm beneath bark or in soil in groups of 20-40. Egg period 4-8 days, grub period 34-45 days, grub pupates in soil and pupal period 7-11 days. Adult is a shining beetle with a metallic bronze colour and black patches on elytra.  Life cycle completed in 53 days and 3-4 overlapping generations completed in a year.

 

Management
Remove loose bark after pruning.
Collect adult beetles and kill.
Spray carbaryl 50 WP 1.0 kg or chlorpyriphos 20 EC 1.0 L in 500 - 1000 L of water/ha after pulling out the loose bark.