Effect of ricino extracts (Ricinus communis L.) and Trichoderma harzianum Rifa ion the growth and development of Botrytis cinerea Whetzel and Penicillium Link pathogens of strawberry crop (Fragaria x ananassa Duch)

Abstract

The development and use of biological inputs for the management of phytosanitary problems are of great interest when thinking about sustainable food production over time. The objective of the study was to evaluate the effect generated by the use of Trichoderma harzianum strains, water-soluble castor bean extracts and castor oil on the growth and development of Botrytis cinerea and Penicillium. For which three water-soluble extracts of castor seeds were obtained. With the extracts obtained and an isolation of Trichoderma, in vitro tests were carried out to determine the effect of castor oil on the growth of Botrytis colonies, and of castor extract and Trichoderma on Penicillium. The results achieved showed that castor oil stimulated the growth of Botrytis in direct relation to the increase in concentration. On the other hand, castor extracts and Trichoderma showed their effectiveness in reducing Penicillium colonies 87 and 55%, respectively.