Tomato Fruitworm

Pests Guide

Signs of the Pest

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Larvae burrowing into fruit near stem end and feeding on fruit interior causing decay

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Fruit turn red prematurely and fall from plant causing reduced yield

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Young caterpillars are cream-white in color with a black head and black hairs; older larvae may be yellow-green to almost black in color with fine white lines along their body and black spots at the base of hairs; eggs are laid singly on both upper and lower leaf surfaces and are initially creamy white but develop a brown-red ring after 24 hours and darken prior to hatching

Solutions to the Pest

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Early treatment of tomato fruitworms is necessary as once they enter the fruit they are protected from sprays; monitor plants for eggs and young larvae and also natural enemies that could be damaged by chemicals

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Bacillus thuringiensis may be applied to control insects on organically grown plants