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Pests, Beneficials, Diseases and Disorders of Mangoes - Northern ...

Pests, Beneficials, Diseases and Disorders of Mangoes - Northern ...

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Mango fruit borer<br />

Citripestis eutraphera (Family Pyralidae)<br />

Description:<br />

Eggs: Newly laid eggs are white <strong>and</strong> turn red after 1 day. Size: 1 mm<br />

in diameter.<br />

Immatures: Newly hatched larvae are pale pink with a dark brown to<br />

black head. Young larvae are pale pink-brown in colour with 4 b<strong>and</strong>s<br />

<strong>of</strong> black spots that run along the body. As the larvae become mature<br />

they darken to red brown. Size: up to 15 mm in length.<br />

Adults: The forewings are dark brown <strong>and</strong> the hindwings are pale<br />

white-grey with a grey b<strong>and</strong> around the margin. Size: Wing span:<br />

female 24 mm, male 20 mm.<br />

Life Cycle: Eggs take 2–3 days to hatch. Once hatched, the larvae<br />

take 14 days to mature <strong>and</strong> pupate. After 14 days, the adult emerges.<br />

In captivity, adults live for up to 10 days.<br />

Similar to: Other moths, particularly those in the family Pyralidae.<br />

Damage: Eggs are laid on the skin around the stem end <strong>of</strong> the fruit or<br />

on the skin within the top third <strong>of</strong> the fruit. If two fruit are hanging on the<br />

tree <strong>and</strong> touching, eggs are sometimes laid on the skin surface where<br />

the two fruit make contact. Wet looking frass is seen on the outside<br />

<strong>of</strong> the fruit. After hatching, the larvae will initially feed by chewing the<br />

surface <strong>of</strong> the skin <strong>of</strong> the fruit <strong>and</strong> then tunnel into the flesh.<br />

Monitoring: Inspect immature <strong>and</strong> mature fruit on the trees as well as<br />

fallen fruit for holes with frass.<br />

J F M A M J J A S O N D<br />

34

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