Effect of Bacillus subtilis and fungicide sprays for control of preharvest diseases of avocado

Preharvest sprays with Bacillus subtilis, on its own and integrated with copper oxychloride, reduced the severity of avocado black spot, caused by Pseudocercospora purpurea in three field experiments. However, control was not as effective as with copper oxychloride spraying only, or as with copper oxychloride and benomyl. Sooty blotch, caused by Akaropeltopsis sp was reduced by B subtilis integrated with copper oxychloride in one experiment only.