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Species:
 
Bactrocera cucurbitae (Coquillett)
   
Common name:
 
Melon fly
   
Damaging stage:
 
Maggots/larvae
   
Crops Affected:
 
Cucurbits, solanaceous and legumes
   
Characteristic Damage:
 
Attacks flowers, stem  and fruits.
   
Eggs are deposited inside the fruits and tissues around the oviposition site become necrotic.
   
Eggs are hatched into maggots which live and develop inside the fruit, internal feeding causes yellowing and decomposition/rotting  of the fruit.
   
Management and Control:
 
Monitor the area regularly.
   
Maintain good field sanitation.
   
Wrap the fruits with newspaper, paper bag or polyethylene sleeves to prevent females in laying eggs.
   
Suppress male population by using attractants (pheromones) like cue lure    (4-(p-acetoxyphenyl)-2-butanone) or to methyl eugenol (4-allyl-1,2-dimethoxybenzene).
   
Spray neem seed kernel extract to deter oviposition.
   
Apply insecticides such as dimethoate (e.g. Perfecthion®), fenthion (e.g. Lebaycid®) and diazinon (e.g. Basudin®, Parapest®).
   
References:
https://en.wikipedia.org/wiki/Fruit_fly
http://www.cabi.org/isc/datasheet/17683
https://en.wikipedia.org/wiki/Melon_fly
   

 

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