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Comparision of different application methods to biological control Hypothenemus hampei

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dc.contributor.author Pereira, Raquel Moraes Costa
dc.contributor.author Almeida, José Eduardo Marcondes de
dc.contributor.author Batista Filho, Antonio
dc.date.accessioned 2021-09-15T10:18:22Z
dc.date.available 2021-09-15T10:18:22Z
dc.date.issued 2021
dc.identifier.citation PEREIRA, R. M. C.; ALMEIDA, J. E. M.; BATISTA FILHO, A. Comparision of different application methods to biological control Hypothenemus hampei. Coffee Science, Lavras, v. 16, p. 1-7, 2021. pt_BR
dc.identifier.issn 1984-3909
dc.identifier.uri https://doi.org/10.25186/.v16i.1873 pt_BR
dc.identifier.uri http://www.sbicafe.ufv.br/handle/123456789/12802
dc.description.abstract There are several studies that deal with the problem of infestation by Hypothenemus hampei in Coffeea arabica. However, the ways of applying products based on entomopathogenic fungi are the same as those used for chemicals. The objective of the research was to comparison different methods of application of Beauveria bassiana against H. hampei. The experiments were developed in laboratory, with blastospores and B. bassiana airborne conidia powders were carried out. Application methods based on immersion, Potter Spray Tower and walking on treated surface. Were three experiments were carried out for each method. Bioassays’design comprised seven treatments (including the control), with five repetitions (each) and 25 beetles per repetition. Suspensions were standardized at 2.4×109, 1×109, 5×108, 1×108, 5×107 and 1×107conidia.mL-1. Conidia powder presented initial concentration of 1.14×1010and it was standardized at 1.14×109; 5.7×109; 1.14×108; 5.7×107; 1.14×107 and 5.7×106 conidia.g-1. A simultaneous test was also carried out based to the three application methods; treatment comprised conidia powder concentration of 1x108 and the control. Data were subjected to analysis of variance, which was followed by Tukey test (P<0.05) and, CL50, in the SPSS 12.1 software. The mortality better rates of H. hampei exposed to B. bassiana IBCB66 were1×108(immersion), 1×109 (Potter Spray Tower) and 1×108(walking), where as mean LC50were 6.1×108, 4.1×108, 2.4×108conidia.mL-1for each method, respectively. The highest mortality rate was recorded in the walking tests on the conidian powder at a concentration of 1×108 conidia.g-1 for the three repetitions of the method and also in the simultaneous test. pt_BR
dc.format pdf pt_BR
dc.language.iso en pt_BR
dc.publisher Editora UFLA pt_BR
dc.relation.ispartofseries Coffee Science:v.16;
dc.rights Open Access pt_BR
dc.subject Blastospores pt_BR
dc.subject Conidian powder pt_BR
dc.subject Mortality pt_BR
dc.subject Suspensions pt_BR
dc.subject.classification Cafeicultura::Pragas, doenças e plantas daninhas pt_BR
dc.title Comparision of different application methods to biological control Hypothenemus hampei pt_BR
dc.type Artigo pt_BR

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