Mango (Mangifera indica)
Mango fruit fly (Bactrocera (Dacus) dorsalis)
Symptoms
- The female punctures outer wall of mature fruits with the help of its pointed ovipositor and insert eggs in small clusters inside mesocarp of mature fruits.
- Brown spots are seen on outer surface of fruit
- On hatching, the maggots feed on fruit pulp and the infested fruits start rotting due to further secondary infection.
Management
- Prior to harvest (30-40 days) collect and dispose off infested and fallen fruits to prevent further, multiplication and carry over of population.
- Ploughing of orchard during November-December to expose pupae to sun’s heat which kills them.
- Traps baited with basil can be hanged at branches @ 4 no/tree
- Hot water treatment of fruit at 48 ± 10oC for 60 min.
- Soil application of beauveria bassiana 2% (20g/litre of water)
- If infestation is heavy, prepare the solution of mlathion 2 ml in 1 litre of water + 20 gram jaggery and spray @ monthly intervals.



