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Registro Completo |
Biblioteca(s): |
Embrapa Cerrados. |
Data corrente: |
14/09/2001 |
Data da última atualização: |
14/09/2001 |
Autoria: |
TAMBASCO, F. J. |
Título: |
Experimental studies on host suitability in the parasitoid apanteles flavipes (Hymenoptera, Braconidae): comparison of selected pyralid and noctuid larvae as hosts. |
Ano de publicação: |
1978 |
Fonte/Imprenta: |
Florida: University of Florida, 1978. |
Páginas: |
50p. |
Idioma: |
Inglês |
Notas: |
Master Thesis. |
Conteúdo: |
Tests were conducted to determine the suitability for development by Apanteles flavipes (Cam.) of five different instars of the sugarcane borer (SCB), Diatraea saccharalis (F.); second and fifth instars of the southwestern corn borer (SWCB), Diatraea grandiosella Dyar; the third instar of the European corn borer (ECB), Ostrinia nubilalis (Hubner); and the second instar of the fall armyworm (FAW), Spodoptera frugiperda (Smith) and the corn earworm (CEW), Heliothis zea (Boddie). All five instars of the SCB were successfully parasitized. The development time of parasite larvae was longer in early instar hosts than in late instars. The average number of parasites produced per host was approximately the same for all instars other than the first, which produced significantly fewer. Diatraea grandiosella was a fairly good host. Parasitization in both second and fifth instars was more successful in larvae attacked twice than in larvae attacked just once, the latter exhibiting a higher percentage of arrested development. When second or fifth instars were attacked, development was normal although host larvae did not pupate. Exposed hosts remained alive for more than 30 days after parasitization. A dark spot, which upon dissection was found to contain encapsulated parasite larvae, appeared in the dorsal region of the posterior end of the body. Parasite development time was the same in both instars and corresponded to the development time in the fifth instar SCB. The average number of parasites produced per larva was lower in second than in fifth instar larvae and those attacked twice produced more parasites. Parasite eggs laid in ECB, FAW and CEW larvae were encapsulated 24 to 48 hours after attack. Dissections made at 24 hour intervals from the time of exposure to 72 hours later, indicated that eggs encapsulatedby ECB and FAW larvae were lysed between 48 and 72 hours after attack, as no trace of encapsulated eggs was foud in ,these hosts at 72 hours. However, encapsulated eggs were found at 72 hours in parasitized CEW larvae. Most parasitized larvae of the, FAW and CEW developed normally, and pupated and emerged as adults. Of these species, in only the CEW was the mortality rate of parasitized larvae significantly greater than that of non-parasitized larvae. Thus, of the five species tested, only SCB and SWCB larvae were suitable horts. MenosTests were conducted to determine the suitability for development by Apanteles flavipes (Cam.) of five different instars of the sugarcane borer (SCB), Diatraea saccharalis (F.); second and fifth instars of the southwestern corn borer (SWCB), Diatraea grandiosella Dyar; the third instar of the European corn borer (ECB), Ostrinia nubilalis (Hubner); and the second instar of the fall armyworm (FAW), Spodoptera frugiperda (Smith) and the corn earworm (CEW), Heliothis zea (Boddie). All five instars of the SCB were successfully parasitized. The development time of parasite larvae was longer in early instar hosts than in late instars. The average number of parasites produced per host was approximately the same for all instars other than the first, which produced significantly fewer. Diatraea grandiosella was a fairly good host. Parasitization in both second and fifth instars was more successful in larvae attacked twice than in larvae attacked just once, the latter exhibiting a higher percentage of arrested development. When second or fifth instars were attacked, development was normal although host larvae did not pupate. Exposed hosts remained alive for more than 30 days after parasitization. A dark spot, which upon dissection was found to contain encapsulated parasite larvae, appeared in the dorsal region of the posterior end of the body. Parasite development time was the same in both instars and corresponded to the development time in the fifth instar SCB. The average number of ... Mostrar Tudo |
Palavras-Chave: |
Parasitoide. |
Thesagro: |
Apanteles Flavipes; Broca; Controle Biológico; Hospedeiro; Inseto; Parasito de Planta; Praga. |
Thesaurus Nal: |
biological control; hosts; Insecta; Noctuidae; parasitic plants; parasitoids; pests; Pyralidae. |
Categoria do assunto: |
-- |
Marc: |
LEADER 03270nam a2200325 a 4500 001 1560212 005 2001-09-14 008 1978 bl uuuu m 00u1 u #d 100 1 $aTAMBASCO, F. J. 245 $aExperimental studies on host suitability in the parasitoid apanteles flavipes (Hymenoptera, Braconidae)$bcomparison of selected pyralid and noctuid larvae as hosts. 260 $aFlorida: University of Florida$c1978 300 $a50p. 500 $aMaster Thesis. 520 $aTests were conducted to determine the suitability for development by Apanteles flavipes (Cam.) of five different instars of the sugarcane borer (SCB), Diatraea saccharalis (F.); second and fifth instars of the southwestern corn borer (SWCB), Diatraea grandiosella Dyar; the third instar of the European corn borer (ECB), Ostrinia nubilalis (Hubner); and the second instar of the fall armyworm (FAW), Spodoptera frugiperda (Smith) and the corn earworm (CEW), Heliothis zea (Boddie). All five instars of the SCB were successfully parasitized. The development time of parasite larvae was longer in early instar hosts than in late instars. The average number of parasites produced per host was approximately the same for all instars other than the first, which produced significantly fewer. Diatraea grandiosella was a fairly good host. Parasitization in both second and fifth instars was more successful in larvae attacked twice than in larvae attacked just once, the latter exhibiting a higher percentage of arrested development. When second or fifth instars were attacked, development was normal although host larvae did not pupate. Exposed hosts remained alive for more than 30 days after parasitization. A dark spot, which upon dissection was found to contain encapsulated parasite larvae, appeared in the dorsal region of the posterior end of the body. Parasite development time was the same in both instars and corresponded to the development time in the fifth instar SCB. The average number of parasites produced per larva was lower in second than in fifth instar larvae and those attacked twice produced more parasites. Parasite eggs laid in ECB, FAW and CEW larvae were encapsulated 24 to 48 hours after attack. Dissections made at 24 hour intervals from the time of exposure to 72 hours later, indicated that eggs encapsulatedby ECB and FAW larvae were lysed between 48 and 72 hours after attack, as no trace of encapsulated eggs was foud in ,these hosts at 72 hours. However, encapsulated eggs were found at 72 hours in parasitized CEW larvae. Most parasitized larvae of the, FAW and CEW developed normally, and pupated and emerged as adults. Of these species, in only the CEW was the mortality rate of parasitized larvae significantly greater than that of non-parasitized larvae. Thus, of the five species tested, only SCB and SWCB larvae were suitable horts. 650 $abiological control 650 $ahosts 650 $aInsecta 650 $aNoctuidae 650 $aparasitic plants 650 $aparasitoids 650 $apests 650 $aPyralidae 650 $aApanteles Flavipes 650 $aBroca 650 $aControle Biológico 650 $aHospedeiro 650 $aInseto 650 $aParasito de Planta 650 $aPraga 653 $aParasitoide
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17. | | SILVA, A. O. da; CORREIA, J. de S.; BASSOI, L. H.; TEIXEIRA, A. H. de C. Evapotranspiração de referência para dimensionamento de sistemas de irrigação em Petrolina, PE. Revista Brasileira de Engenharia de Biossistemas, Campinas, v. 9, n. 1, p. 30-38, 2015.Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 5 |
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20. | | SILVA, A. O. da; DIAS, M. M.; MARTINS, N. M.; SILVA, W. M.; MERCANTE, F. M. Métodos comparativos de quantificação dos teores de carbono da biomassa microbiana e carbono orgânico do solo. In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 34., 2013, Florianópolis. Ciência do solo: para quê e para quem: anais. Viçosa, MG: Sociedade Brasileira de Ciência do Solo, 2013.Tipo: Artigo em Anais de Congresso |
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