Biological control of Bradysia matogrossensis (Diptera : Sciaridae) in mushroom cultivation with predatory mites
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Data
2007-06-01
Autores
Prado Freire, Renata Angelica
de Moraes, Gilberto Jose
Silva, Edmilson Santos
Vaz, Alcione Cicera
de Campos Castilho, Raphael
Título da Revista
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Editor
Springer
Resumo
Larvae of Sciaridae flies (Diptera) cause considerable damage to the mushroom Agaricus blazei (Murrill) ss. Heinemann in Brazil. Brazilian growers have had considerable difficulties in controlling this pest. The objective of this work was to test the effect of the predatory Laelapidae mite Stratiolaelaps scimitus (Womersley) as a control agent of Bradysia matogrossensis (Lane) in cultures of A. blazei. The work corresponded to an evaluation of the efficiency of that predator when released in boxes containing each about 15 L of commercial mushroom compost naturally infested with the pest. The results showed a significant effect of that predator on the population of B. matogrossensis. The release of either 665 or 1330 S. scimitus per box significantly reduced the pest population to levels that, according to grower's experience, apparently could not cause considerable damage. The positive results obtained warrant the conduction of complementary studies to determine the lowest rates of the predator that could still produce acceptable levels of control.
Descrição
Palavras-chave
Biological control, predatory mite, fungus gnat, Stratiolaelaps scimitus, Hypoaspis miles
Como citar
Experimental and Applied Acarology. Dordrecht: Springer, v. 42, n. 2, p. 87-93, 2007.