1. 1.
Hadda beetles (Coleoptera: Coccinellidae)
Other
coleopterans of minor importance:
3. Blister beetles: Epicauta hirticornis Hagg. (Coleoptera:
Meloidae)
4. Weevil: Myllocerus subfasciatus Guerin. (Coleoptera:
Curculionidae)
Epicauta hirticornis
Myllocerus subfasciatus
Management of beetles:
-
Deep summer ploughing to kill the over wintering population.
-
Handpicking of grub infested leaves and destruction of various
stages of the pest.
-
Conservation of natural enemies viz. a eulophid egg parasitoid,
Tetrastichus ovulorum and a chalcid parasitoid, Ugna menoni
Kerrich and Pediobius foveolatus. The parasitisation of H.
vigintioctopunctata in the field by P. foveolatus Crawford
has been reported to be as high as 77 %.
-
When serious, the pests can be controlled by spraying
Dichlorvos 78EC @ 1ml or carbaryl 50WP @2 gm/ lit of water.
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