About Lesson
Red ant ( Doryllus rentals, Dorylidae, Hymenoptera)
- Social insect ( female, male, worker)
- Polyphagus pest.
Damaging stage: worker
Damaging symptoms :
- Feed underground parts of the plant like root, tuber, and underground
- Wilt and turn yellow and dies.
Identification
- Male: dark brown two pairs of membranous
- Worker: mainly damaged to host plant, eye absent, sserialfemale.
- Female: larger body, eyes, 2 pairs of wings. Laying egg in soil below 3-5 cm in ground level. Hatch in 1wks and 2 wks in pupa.
Management
- Solution of azadiractin @100ml/l in the oil near the plant stem.
- Drench water diluted cow urine (1:5 urine: water)+ tobacco dust (5g in every 1 liter of diluted cow urine)in the soil @100ml/plant at tuber initiation.
- Application of chloropyrifos in soil, dursban10%G @ 1kg/ropani before