Selectivity of phytosanitary products used in organic farming on adult of Cryptolaemus montrouzieri (Coleoptera, Coccinellidae) under laboratory conditions

Autores

  • Caio Fábio Stoffel Efrom Universidade Federal do Rio Grande do Sul
  • Luiza Rodrigues Redaelli Universidade Federal do Rio Grande do Sul
  • Rafael Narciso Meirelles Universidade Federal do Rio Grande do Sul
  • Cláudia Bernardes Ourique Universidade Federal do Rio Grande do Sul

DOI:

https://doi.org/10.5433/1679-0359.2011v32n4p1429

Palavras-chave:

Predator, Beneficial insect, Rotenone, Lime sulfur, Neem, Pyroligneous extract.

Resumo

The association of pesticides with biological control is possible only if they provide some selectivity to natural enemies. In the organic production system the effect of insecticides on beneficial insects has not been extensively studied. Thus, this study aimed to evaluate in laboratory conditions the effect of pesticides used in this system on the adults of the predator Cryptolaemus montrouzieri Mulsant (Coleoptera, Coccinellidae). We used four treatments, which corresponded to four multiple values (0.25x, 0.5x, 2x and 1x) of the concentration recommended by manufacturers of the following products: Rotenat CE®, Pironat®, Biopirol 7M®, Organic Neem®, Natuneem® and lime sulfur, which were tested in C. montrouzieri by topical application and residual exposure. None of the products, at any concentrations tested, had a significant effect on the survival of adults of C. montrouzieri, what did not differ from the distilled water control, showing that the products tested are selective to the adults of this species. However, other forms of exposure and evaluation methods must be studied.

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Biografia do Autor

Caio Fábio Stoffel Efrom, Universidade Federal do Rio Grande do Sul

Pesquisador, Deptº de Fitossanidade, Faculdade de Agronomia, Universidade Federal do Rio Grande do Sul, UFRGS, Porto Alegre, RS.

Luiza Rodrigues Redaelli, Universidade Federal do Rio Grande do Sul

Profª associada, Deptº de Fitossanidade, Faculdade de Agronomia, UFRGS, Porto Alegre, RS.

 

Rafael Narciso Meirelles, Universidade Federal do Rio Grande do Sul

Discente de doutorado, Deptº de Fitossanidade, Faculdade de Agronomia, UFRGS, Porto Alegre, RS.

Cláudia Bernardes Ourique, Universidade Federal do Rio Grande do Sul

Discente de graduação, Deptº de Fitossanidade, Faculdade de Agronomia, UFRGS, Porto Alegre, RS.

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Publicado

2011-10-14

Como Citar

Efrom, C. F. S., Redaelli, L. R., Meirelles, R. N., & Ourique, C. B. (2011). Selectivity of phytosanitary products used in organic farming on adult of Cryptolaemus montrouzieri (Coleoptera, Coccinellidae) under laboratory conditions. Semina: Ciências Agrárias, 32(4), 1429–1438. https://doi.org/10.5433/1679-0359.2011v32n4p1429

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