Flea beetle( Phyllotreta crucifere, Chysomelidae,Coleoptera)

Damaging stage : grub and adult ( grub : root , adult : leaves )

Symptoms of damage : adult cause pin hole damage, grub damage primary root and secondary root of crops.

Among cruciferous plant, BLM is more common than cabbage for infestation.

Identification

• Egg : yellow, elongate – oval, either singly or in group of -4 in the soil adjacent to plant
• Larva : thin white leglessgrub with brown
• Pupa : soil
• Adult : black, brown,gray, bronze,bluish and other metalic color shiny beetle ,sometimes stripped too. Overwinter in soil during winter and emerge in spring .

Life cycle

Egg–12 days–> grub —3-4 weeks–> Adult

Management

• Predator : lacewing larva and big
• Trap crop: BLM and
• Sticky yellow
• Neem oil, pyrethrin, hot
• Mamalthian, cypermethrin @2-3 ml/l of water .