Multiplicação em larga escala do agente de controle biológico Trichoderma asperellum

Abstract

Biological control is an alternative for management of soil associated phytopathogens. Additionally, associated with management techniques, it becomes an important sustainable and economic production strategy. Trichoderma spp. has great control potential due to its different mechanisms of action becoming oneof the main agents of biocontrol. From the internal demand of the Embrapa Mandioca and Fruticulture Phytopathology Laboratory for laboratory experiments and with the advancement of the field studies, it was necessary to produce in greater quantity inoculum of Trichoderma asperellum and, with the results of the experiments, the production extended to properties. One of the assumptions of the biological control is the reduction of the use of agrochemicals, the mass production of Trichoderma asperellum in rice is an option for the reduction of the chemical applications in the field, so the present work had the objetive of devoloping the mass production methodology being possible be carried out by producers for consumption on the property itself. From the described methology, it is possible to obtain a production of 520 kg of rice colonized in 15 days per person with the concentration of 10¹º conidia / g. Therefore, the described procedure allows the easy multiplication of the Trichoderma asperrellum carried out by producers whose goal is to reduce costs and to produce more sustainable food.