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Effect of Thiamethoxam on Entomopathogenic Microorganisms Neotropical Entomology
BATISTA FILHO,ANTONIO; ALMEIDA,JOSÉ E.M.; LAMAS,CLÓVIS.
The compatibility of entomopathogenic microorganisms with thiamethoxam and other insecticides was studied in vitro and under field conditions. The microorganisms tested were: Aschersonia aleyrodis, Bacillus thuringiensis, Baculovirus anticarsia (NPVAg), Beauveria bassiana, Hirsutella thompsonii, Metarhizium anisopliae, Nomuraea rileyi, Paecilomyces farinosus, Sporothrix insectorum and Verticillium lecanii. Two concentrations of each product were tested in the laboratory, based on the maximum and minimum recommended rates for application in the field. The products were added to specific culture medium for growth of the entomopathogens. Reproductive and vegetative growth were evaluated for fungi, and colony forming units (CFU) were evaluated for bacteria....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Insecta; Insecticide; Microbial control; Compatibility.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2001000300017
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Stability and Persistence of Two Formulations Containing Anticarsia gemmatalis Nuclear Polyhedrovirus (AgMNPV) Neotropical Entomology
BATISTA FILHO,ANTONIO; ALVES,SÉRGIO B.; AUGUSTO,NILSON T.; PEREIRA,ROBERTO M.; ALVES,LUIS F.A..
The stability and the persistence of two AgMNPV formulations developed by the Instituto Biológico and the Escola Superior de Agricultura "Luiz de Queiroz", Universidade de São Paulo, Brazil were studied. Formulations were stored in environmental conditions and exposed to ultraviolet radiation in laboratory and to solar radiation in the field. The wettable powder formulation (WP) was prepared by impregnating viral suspensions + adjuvants on inert mineral, chiefly kaolin. The emulsifiable oil formulation (EO) was prepared by mixing the pathogen suspension with corn oil + adjuvants. At 120-day intervals for 20 months, samples of formulations and the standard treatment (crude virus) kept in a laboratory cabinet were added to artificial diet fed to 4th-instar...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Insecta; Nuclearpolyhedrovirus; Storage; Ultraviolet radiation.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2001000300012
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