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Parasitismo de ovos de cigarrinhas-das-pastagens (Homoptera: Cercopidae) pelo microhimenóptero Anagrus urichi pickles (Hymenoptera: Mymaridae) na região de Campo Grande, MS / Parasitism of spittlebug eggs (Homoptera: Cercopidae) by the microhymenopteran Anagrus urichi pickles (Hymenoptera: Mymaridae) in Campo Grande, MS, Brazil
Valério, José R; Oliveira, Marlene C. M.
  • Valério, José R; Empresa Brasileira de Pesquisa Agropecuária Gado de Corte. Campo Grande. BR
  • Oliveira, Marlene C. M; IDATERRA. Campo Grande. BR
Neotrop. entomol ; 34(1): 137-138, Jan.-Feb. 2005.
Article in Portuguese | LILACS | ID: lil-451508
RESUMO
Constatou-se parasitismo em amostras de ovos de cigarrinhas-das-pastagens coletadas em pastagens de Brachiaria decumbens, pelo microhimenóptero Anagrus urichi Pickles, constituindo-se no primeiro registro dessa natureza para o Estado de Mato Grosso do Sul. O índice de parasitismo observado foi de 10,4 por cento, sendo que, em média, emergiram 4,7 parasitóides por ovo. A exposição de 100 ovos da cigarrinha Notozulia entreriana (Berg), obtidos em laboratório, a oito desses parasitóides, resultou em 13 por cento de parasitismo, indicando a possibilidade de multiplicação desse inimigo natural em laboratório.
ABSTRACT
Egg parasitism by the microhymenopteran Anagrus urichi Pickles was found on samples of spittlebug eggs collected in Brachiaria decumbens pasture. It is the first record of spittlebug egg parasitism for the State of Mato Grosso do Sul, Brazil. The rate of 10.4 percent of parasitism was observed in 1688 spittlebug eggs, comprising seven samples. On average, 4.7 wasps emerged from each parasitized egg. Thirteen percent of parasitism were observed when 100 eggs of the spittlebug Notozulia entreriana (Berg), obtained in the laboratory, were exposed to eight of these parasitoids. It is anticipated the possibility of mass rearing A. urichi.
Subject(s)
Full text: Available Index: LILACS (Americas) Main subject: Hemiptera Country/Region as subject: South America / Brazil Language: Portuguese Journal: Neotrop. entomol Journal subject: Biology / ZOOLOGIA Year: 2005 Type: Article Affiliation country: Brazil Institution/Affiliation country: Empresa Brasileira de Pesquisa Agropecuária Gado de Corte/BR / IDATERRA/BR

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Full text: Available Index: LILACS (Americas) Main subject: Hemiptera Country/Region as subject: South America / Brazil Language: Portuguese Journal: Neotrop. entomol Journal subject: Biology / ZOOLOGIA Year: 2005 Type: Article Affiliation country: Brazil Institution/Affiliation country: Empresa Brasileira de Pesquisa Agropecuária Gado de Corte/BR / IDATERRA/BR