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Parasitism by Campoletis flavicincta on Spodoptera frugiperda in corn PAB
Matos Neto,Fausto da Costa; Cruz,Ivan; Zanuncio,José Cola; Silva,Carlos Henrique Osório; Picanço,Marcelo Coutinho.
Parasitism by Campoletis flavicincta (Ashmead) (Hymenoptera: Ichneumonidae) on Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae) and consequent reduction of production losses were evaluated on caged corn plants in the field. Treatments consisted of plots infested with 0 (control), 15 and 30 pairs of C. flavicincta with egg masses per cage and plot infested without cage and liberation of the parasitoid. Parasitoid release was done when S. frugiperda larvae were three-day-old. Fifty corn plants (40%) per plot were collected seven days after infestation and S. frugiperda larvae present were reared in glass cups on an artificial diet. Number of S. frugiperda larvae was reduced by C. flavicincta but mortality of the pest and parasitoid sex ratio in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Field cage evaluation; Corn pests; Biological control; Parasitoid density; Ichneumonidae.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2004001100004
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Reproductive characteristics of the predator Podisus nigrispinus fed with an insect resistant soybean variety PAB
Matos Neto,Fausto da Costa; Zanuncio,José Cola; Picanço,Marcelo Coutinho; Cruz,Ivan.
The objective of this research was to evaluate the effect of the insect resistant soybean genotype IAC 17 on reproductive characteristics of Podisus nigrispinus (Dallas) (Heteroptera: Pentatomidae) females compared to the soybean insect susceptible genotype UFV 16. Treatments were: T1) females of P. nigrispinus fed on plants of the UFV 16 and Anticarsia gemmatalis Hübner (Lepidoptera: Noctuidae) caterpillars reared on leaves of this variety; T2) females of P. nigrispinus fed on plants of the IAC 17 and A. gemmatalis caterpillars reared on leaves of this variety. Longevity of females, pre-oviposition, oviposition and pos-oviposition periods, number of eggs and egg masses/female, egg weight, interval between egg mass laying, number of eggs/egg mass,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Anticarsia gemmatalis; Insects; Reproduction; Biological control; Pest control.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2002000700004
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Nymphal development of Podisus nigrispinus (Heteroptera, Pentatomidae) preying on larvae of Anticarsia gemmatalis (Lepidoptera, Noctuidae) fed with resistant and susceptible soybeans Rev. Bras. entomol.
Matos Neto,Fausto da Costa; Zanuncio,José Cola; Cruz,Ivan; Torres,Jorge Brás.
Nymphal development of the predator Podisus nigrispinus (Dallas) fed with a susceptible (UFV 16) or an insect resistant soybean genotype (IAC 17) and with larvae of the prey Anticarsia gemmatalis Hübner (Lepidoptera, Noctuidae) reared on these genotypes, was evaluated. Survival and duration of each instar and of total nymphal stage, besides weight of nymphs at the beginning of each instar and of adults of P. nigrispinus soon after emergence, were also evaluated. Nymphal survival of this predator was similar with both genotypes (64.41% for the UFV 16 and 72.88% for the IAC 17). Duration of second and fourth instars for nymphs that originated females, of fourth instar for those that originated males, of the nymphal period for males (20.21 and 17.94 days) and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Asopinae; Biological control; Heteroptera; Glycine max; Tri-trophic interaction.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262002000300002
Registros recuperados: 3
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