Temporal distribution of Botrytis cinerea and its relationship to the production of strawberries (Fragaria × ananassa Duch., Monterrey variety) subjected to biological treatments with microbial antagonists

In the Bogota Plateau (Bogota Savanna-Colombia), strawberry cultivation (Fragaria × ananassa Duch.) is established from 2,000 to 2,800 m a.s.l. this environment relative humidity generally greater than 70% and temperature fluctuates between 14 22°C; a favorable climate for development of fungal diseases. Gray mold (Botrytis cinerea) most important disease here fruit losses can exceed 40% production. The purpose research was analyze effect use microbial antagonists in biological regulation B. cinerea its relationship Fragaria Duch, cv. Monterrey plants were inoculated co-inoculated (combination) at time transplantation with consortia made up mycorrhizal fungi, antagonistic bacteria Trichoderma harzianum. We evaluated temporal incidence production healthy fruits 90, 180 270 days after transplantation. observed temporary increase 6.59 23.08% control plants, higher values those treatment. Treatment mycorrhizae showed lowest 0.89, 13.78% best treatment Inoculation co-inoculation are an alternative reducing increasing