Bondi Junction NSW, Australia
Fact Sheets
2021-09-08T03:10:26.2845339Z
   2
Bean (Vigna) rust (234)
Pacific Pests, Pathogens and Weeds
Pacific Pests, Pathogens and Weeds

Summary

  • Worldwide distribution. On Vigna species, crops (cowpea, long bean) and weeds. Another species infects Phaseolus. Rust comes late, and the impact is relatively small.
  • Reddish-brown, circular pustules with yellow halos on leaves and pods, producing powdery spores.
  • Spread by spores blown in the wind.
  • Cultural control: plant beans with maize, at random, not in rows; use a 2-year crop rotation; do not plant overlapping crops; resistant varieties; collect and burn trash after harvest.
  • Chemical control: use mancozeb, starting when the spots are first seen.

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