Control of the Boll Weevil (Coleoptera: Curculionidae) with Naturalis-L: A Mycoinsecticide
1993; Oxford University Press; Volume: 86; Issue: 5 Linguagem: Inglês
10.1093/jee/86.5.1355
ISSN1938-291X
Autores Tópico(s)Insect Resistance and Genetics
ResumoNaturalis-L, which contains conidia of an insect-specific fungus, Beauveria bassiana (Balsamo) Vuillemin (ATCC 74040, ARSEF 3097, FCI 7744), was evaluated in field trials for activity against boll weevil, Anthonomus grandis grandis Boheman. Effectiveness was evaluated against overwintered adults in the spring and throughout the cotton production season for control of adults in the Lower Rio Grande Valley of Texas. In 1991, Naturalis-L was as effective as azinphosmethyl in protection of the cotton crop; lint production was 247.2 and 223.1 kg/0.4ha, respectively. In 1992, lint production in cotton protected by Naturalis-L was 373.1 kg compared with 469.5 kg lint production in cotton protected by a combination of bifenthrin and acephate. In 1991 and 1992, the integration of Naturalis-L for early-season boll weevil protection and insecticides for boll weevil infestations occurring after bloom provided the best protection and lint yields (302.1 and 469.5 kg/0.4hal, respectively.
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