SciELO - Scientific Electronic Library Online

vol.29 issue4Fertility life table of Muscidifurax uniraptor Kogan & Legner (Hymenoptera: Pteromalidae) on pupae of Musca domestica L. (Diptera: Muscidae)Determination of pirimicarb diagnostic concentration in order to detect oopulations of Myzus persicae (Sulz.) (Homoptera: Aphididae) with different esterase levels author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links


Anais da Sociedade Entomológica do Brasil

Print version ISSN 0301-8059On-line version ISSN 1981-5328


MONNERAT, Rose G.; BORDAT, Dominique; BRANCO, Marina Castelo  and  FRANCA, Félix H.. Effects of Bacillus thuringiensis Berliner and chemical insecticides on Plutella xylostella (L.) (Lepidoptera: Yponomeutidae) and its parasitoids. An. Soc. Entomol. Bras. [online]. 2000, vol.29, n.4, pp.723-730. ISSN 0301-8059.

Three biopesticides based on Bacillus thuringiensis (Dipel, Florbac and Biobit), and two chemical insecticides (deltamethrin and abamectin) were evaluated in field trials against Plutella xylostella (L.) and its parasitoids in Brazil. Plots treated with Florbac, Biobit and abamectin produced 100% marketable cabbages. Dipel and deltamethrin also resulted in acceptable control (85% yield). In the control plot, 97.2% of the yield was lost. The rate of parasitism on the plots treated with biopesticides was between 35.7 and 60.5%, in the control was 42.9% and in those treated with chemical insecticides was 9.0 and 25.8 %. These results indicate that the biopesticides had no adverse effect on the parasitoids, in contrast to the classic chemical products.

Keywords : Insecta; cabbage; Brassica oleracea var. capitata; diamondback moth; Diadegma sp.; Apanteles sp.; Cotesia plutellae; chemical control.

        · abstract in Portuguese     · text in Portuguese     · Portuguese ( pdf epdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License