Data/hora: 06/06/2024 11:22:20

Provedor de dados: | 82
País: | Brazil
Título: | Life history of Amblyseius herbicolus (Chant) (Acari: Phytoseiidae) on coffee plants
Autores: | Reis,Paulo R.; Teodoro,Adenir V.; Pedro Neto,Marçal; Silva,Ester A. da.
Data: | 2007-04-01
Ano: | 2007
Palavras-chave: | Biology; Phytoseiid; Functional response; Numerical response; Coffea arabic.
Resumo: | The predaceous mite Amblyseius herbicolus (Chant) is the second most abundant phytoseiid on coffee plants (Coffea arabica L), after Euseius alatus DeLeon, in Lavras, MG, Brazil, associated to the vector of the coffee ring spot virus, Brevipalpus phoenicis (Geijskes) (Acari: Tenuipalpidae). Its life history was studied taking into account biological aspects, life table, predatory activity and functional and numerical responses in relation to the density of the prey. The adult female has longevity of 38 days when supplied with B. phoenicis. The intrinsic rate of population increase (r m) was 0.150 and the mean generation time (T) 25.3 days. The population doubles every 4.6 days. Thirty mites B. phoenicis /3-cm diameter coffee leaf arenas were separately offered to one specimen of each predator phase. Adult females were more efficient in killing all developmental phases of B. phoenicis, followed by the nymph stages. For the functional and numerical responses studies, from 0.14 to 42.3 immature specimens of the prey /cm² of arena were submitted to the predator, the preferred phase for predation. Predation and the oviposition of A. herbicolus increased with increasing prey density, with a positive and highly significant correlation. Regression analysis suggests a functional type II response, with a maximum daily predation near 35 B. phoenicis /cm² /one adult female.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2007000200016
Editor: | Sociedade Entomológica do Brasil
Relação: | 10.1590/S1519-566X2007000200016
Formato: | text/html
Fonte: | Neotropical Entomology  v.36 n.2 2007
Fonte: | info:eu-repo/semantics/openAccess