Mustard sawfly (Athalia lugens, Ttenthredinidae, Hymenoptera )

Polyphagous pest

Damaging stage: larva

Nature of damage: bite a hole into leaves preferring the young growth and skeletonize the leaf completely.

Identification

• Egg: inside the leaf with the help of ovipositors
• Larva: initially white later changed to Quickly fall from the plant when touched in them.
• Pupa: pupation in
• Adult: orange color body with smokey transparent wings with black

Management

• Deep summer plowing to destroy.
• Early sowing.
• Apply irrigation in the seedling stage is a very crucial stage for sawfly management because most larvae die due to the drawing effect. Severe cold reduced pest pop.
• Larrval parasitoid : perilissus
• Bacteria: Serratia
• Bittergourd seed oil emulsion which acts as an anti
• Malathion 50EC @ 1000/ha or quinolphos 25EC @625ml/ha at 600-700 lit of water /ha.