Bondi Junction NSW, Australia
Fact Sheets
2021-09-08T03:16:28.9687788Z
   3
Sweetpotato leaf folder (028)
Pacific Pests, Pathogens and Weeds
Pacific Pests, Pathogens and Weeds

Summary

  • Widespread distribution. Asia, Africa, Oceania. On sweetpotato, the main host, but also on weeds. An important pest.
  • Eggs laid on upper leaf surface; caterpillars, green with brown heads, fold the leaves, fastening edges with webbing. At first, they make 'windows' in the leaf; later, they make holes. Impact on yield unclear.
  • Natural enemies: parasitoid wasps.
  • Cultural control: plant far from infested crops, using healthy cuttings; weed, and remove 'volunteers' and wild Ipomoea; collect and burn trash after harvest.
  • Chemical control: PDPs: neem, derris, pyrethrum, or chilli; biopesticides - spinosad and Bt (Bacillus thuringiensis); or synthetic pyrethroids, but these will kill natural enemies.

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