About Lesson
Green leaf hopper (Nephotettix nigropictus, Nephotettix virescens , cicadilidae)
Rice is major host and other grass is alternate host .
Damaging stage:- nymph and adult
Damaging symptoms:
- Stunted growth and reduced
- On tillers appearance of white patches at higher population
- Transmits virus diseases: tungro, yellow dwarf, yellow-orange leaf, and transitory yellowing.
Nephotettix nigropictus :- yellow dwarf and transitory yellowing disease
Nephotettix virescens :- vector of virus disease like tungro, yellow dwarf ,yellow orange leaf, leaf yellowing
Identification
Adult :- green color ,black at distal end on each
Management
- Laval parasitoid like pseudognatopus
- Predator : green mired bug , carabid beetle , lady beetle
- Light trap, rice+soybean(intercrop),transplanting older seed .
- Chloropyrifus 20% Ec @2ml/l
- Buprofenin 25%Ec @ 1g/l, it’s contact