Main author: Orietta Fernández-Larrea Vega
Summary: There were determined and elaborated the reproduction methodologies of B.bassiana, P.lilacinus and M.anisopliae entomopathogenic fungi, through superficial cultivation methods, and of B.bassiana through submerged cultivation. It was elaborated the norm of CUBAVET company to the massive procurement of B.thuringiensis by submerged cultivation. There were optimized the reproduction technologies through superficial cultivation of B.bassiana and M.anisopliae. It was determined the effectiveness of B.bassiana and M.anisoplaie biopreparations, also the use of P.megocephala ant for the control of the banana weevil (Cosmopolites sordidus Germar) and that of B.bassiana and M.anisoplaie, as well as the use of Trichograma and Heterorhabditis for the control of pike killifish Belonesox belizanus and little dove in rice cultivation.
These biological means are applied for the control of plagues in the cultivations of rice, banana, vegetables, grasses, tobacco and sweet potato. With the introduction of new technologies for the reproduction of entomopathogens, it is diminished the production cost of B.bassiana in 47% with an economic effect of 1 212.96 pesos for every area of 100 treated hectares, and in the case of M. anisoplaie, it represents a saving of 30,63%. Obtaining a product with B.thuringiensis facilitates a gain of 400 pesos approximately for every 900 liters produced from1989 to 1990. The direct potential contributions in MLC calculated for one year due to the equivalent sustitution of chemical pesticides by biological means, amount to 3 348,9 MP. Until November of 1990, there were produced 653.7 TM of B.thuringiensis applied in 163 420 hectares in grasses, yucca, sweet potato and vegetables, and 172,9 TM of B.bassiana in 24 700 ha of banana, rice and sweet potato; also, there were produced 9.9 t of Verticillium for the control of white fly in bean and tomato and 8 662.4 millions of Trichograma applied in 288 746,6 hectares in grasses and yucca.