Qualidade de Cotesia flavipes Cameron, 1891 (Hymenoptera: Braconidae) produzida por biofábricas do estado de São Paulo
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Data
2017-02-23
Autores
Carvalho, Vanessa Fabíola Pereira de [UNESP]
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Universidade Estadual Paulista (Unesp)
Resumo
Cotesia flavipes Cameron, 1891 (Hymenoptera: Braconidae), parasitoide utilizado no programa de controle biológico de Diatraea saccharalis (Fabricius, 1794) (Lepidoptera: Crambidae), é liberado em áreas de cana-de-açúcar pelo menos uma vez durante o ciclo da cultura. Para isso são produzidos aproximadamente 21 bilhões de parasitoides por ano, em cerca de 40 biofábricas no Brasil. Esse programa teve início há mais de 40 anos, quando esse parasitoide foi introduzido no país, e até o momento não foram realizadas novas introduções. O objetivo deste trabalho foi avaliar qualidade de C. flavipes proveniente de cinco das maiores biofábricas do estado de São Paulo, Brasil – I = Sertãozinho, II = Santa Ernestina, III = Pradópolis, IV = Américo Brasiliense e V = Ribeirão Preto, através da morfometria externa dos exemplares, produção de descendentes, sobrevivência e habilidade de voo, em dez amostragens durante dois anos. Quanto aos parâmetros morfométricos, a Biofábrica I apresentou parasitoides semelhantes ao encontrado na literatura. A maior longevidade foi encontrada na Biofábrica IV (4 dias). A média da razão sexual foi maior para a Biofábrica I (0,73 fêmeas/hospedeiro). A média geral de sobrevivência de pupa a adulto foi acima de 80% para todas as Biofábricas. As massas de pupa que produziram, em média, o maior número de parasitoides por hospedeiro foram as da Biofábrica I (média de 67,53 fêmeas/hospedeiro). Os insetos de todas as Biofábricas apresentaram bom desempenho, observando-se, porém,que a Biofábrica I foi a que se destacou quanto aos parâmetros biológicos, apresentando resultados superiores. Dessa forma conclui-se que a metodologia utilizada permite detectar diferenças morfológicas externas e biológicas nos insetos produzidos em laboratório, podendo compor um futuro protocolo de controle de qualidade para C. flavipes.
Cotesia flavipes Cameron, 1891 (Hymenoptera: Braconidae), a parasitoid used in the biological control program of Diatraea saccharalis (Fabricius, 1794) (Lepidoptera: Crambidae), is released in sugarcane areas at least once during the culture. Approximately 21 billion parasitoids are produced per year in about 40 biofactories in Brazil. This program began more than 40 years ago, when this parasitoid was introduced in the country, and so far no new introductions have been made. The objective of this work was to evaluate the quality of C. flavipes coming from five of the largest biofactories in the state of São Paulo in Brazil, I = Sertãozinho, II = Santa Ernestina, III = Pradópolis, IV = Américo Brasiliense and V = Ribeirão Preto. External morphometry of the specimens, production of offspring, survival and flight ability, in ten samplings over two years. Regarding the morphometric parameters, Biofactory I presented parasitoids similar to those found in the literature. The greatest longevity was found in Biofactory IV (4 days). The mean sex ratio was higher for Biofactory I (0.73 females / host). The overall survival rate from pupae to adult was above 80% for all Biofactories. The pupal masses that produced, on average, the highest number of parasitoids per host were those of Biofactory I (mean of 67.53 females / host). The insects of all the Biofactories presented good performance, however, observing, however, that Biofactory I was the one that stood out about the biological parameters, presenting superior results. Thus, it can be concluded that the methodology used allows the detection of external and biological morphological differences in insects produced in the laboratory, and may constitute a future quality control protocol for C. flavipes.
Cotesia flavipes Cameron, 1891 (Hymenoptera: Braconidae), a parasitoid used in the biological control program of Diatraea saccharalis (Fabricius, 1794) (Lepidoptera: Crambidae), is released in sugarcane areas at least once during the culture. Approximately 21 billion parasitoids are produced per year in about 40 biofactories in Brazil. This program began more than 40 years ago, when this parasitoid was introduced in the country, and so far no new introductions have been made. The objective of this work was to evaluate the quality of C. flavipes coming from five of the largest biofactories in the state of São Paulo in Brazil, I = Sertãozinho, II = Santa Ernestina, III = Pradópolis, IV = Américo Brasiliense and V = Ribeirão Preto. External morphometry of the specimens, production of offspring, survival and flight ability, in ten samplings over two years. Regarding the morphometric parameters, Biofactory I presented parasitoids similar to those found in the literature. The greatest longevity was found in Biofactory IV (4 days). The mean sex ratio was higher for Biofactory I (0.73 females / host). The overall survival rate from pupae to adult was above 80% for all Biofactories. The pupal masses that produced, on average, the highest number of parasitoids per host were those of Biofactory I (mean of 67.53 females / host). The insects of all the Biofactories presented good performance, however, observing, however, that Biofactory I was the one that stood out about the biological parameters, presenting superior results. Thus, it can be concluded that the methodology used allows the detection of external and biological morphological differences in insects produced in the laboratory, and may constitute a future quality control protocol for C. flavipes.
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Palavras-chave
Criação massal, Controle biológico, Parasitoides, Cana-de-açúcar, Controle de qualidade