Pest Management: Symptoms
Mango - Mango nut weevil: Sternochaetus mangiferae
- Symptoms of Damage:
Grub makes zigzag tunnels in pulp
Eats unripe tissue and bore into cotyledons
Fruit dropping at marble stage
Oviposition injuries on marble sized fruits.
Tunnelled cotyledons in mature fruit by grubs
- Identification of Pest:
Grub - A full grown grub is legless, fleshly and yellow with dark head.
Dark weevils after emergence remain inactive, hidden in the cracks and crevices on the trunk
Adult - Adult is dark brown with a short snout.
Collect and destroy the fallen fruits
Maintain hygiene in storage place
Acephate 75 SP 1.5g/lit or Lambdacyhalothrin 5 EC 2.5 ml/lit at marble size stage of fruits, Phosalone 35 EC 2 ml/lit against Mango nut weevil
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