Pacific Pests, Pathogens & Weeds - Mini Fact Sheet Edition

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Bean lace bug (253)

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Photo 1. Brown faecal spots, adults and nymphs of the bean lace bug, Corythucha gossypii, on eggplant.

Photo 3. Leaves of eggplant showing white flecks, and also more serious yellow-white bleaching of older leaves due to feeding of bean lace bug, Corythucha gossypii.

Photo 4. Nymphs of the bean lace bug, Corythucha gossypii, on eggplant.

Photo 5. Adults and nymphs of the bean lace bug, Corythucha gossypii, on dwarf bean.

Photo 6. Dark brown patch on the underside of a bean leaf due to feeding of the bean lace bug, Corythucha gossypii.

Photo 7. Top side of Photo 4 to show the brown lesion caused by the bean lace bug, Corythucha gossypii.

Photo 2. Adults and nymphs of the bean lace bug, Corythucha gossypii, on bele, Abelmoschus manihot.

Summary

• Widespread distribution (but not Africa). On beans, bele, breadfruit, eggplant, Hibiscus, and many other hosts. CABI lists soursop and sweetpotato.
• Nymphs and adults use piercing mouthparts to feed on leaves causing large brown patches on beans, and white spots and whitish-yellow patches on eggplant. Brown faecal spots are present on the underside of leaves.
• Probably not of economic importance, except in dry weather, when natural enemies low.
• Natural enemies: parasitoid wasps, assassin bugs, lacewing larvae, ladybird beetles, pirate bugs, and more.
• Cultural control: create conditions for healthy growth - ensure adequate manures or fertilizer, and water.
• Chemical control: use soap, white or horticultural oils,or PDPs: neem, derris, chilli or pyrethrum. Alternatively, use synthetic pyrethroids, although they are likely to kill natural enemies.

Common Name

Bean lace bug, cotton lace bug

Scientific Name

 Corythucha gossypii

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