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Impact of intraplot mixtures of toxic and nontoxic plants on population dynamics of diamondback moth (Lepidoptera: Plutellidae) and its natural enemies

Riggin-Bucci, T.M. (BASF Corporation, Research Triangle Park, NC.) ; Gould, F

Journal of economic entomology, 1997-04, Vol.90 (2), p.241-251 [Periódico revisado por pares]

Lanham, MD: Entomological Society of America

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Título:
Impact of intraplot mixtures of toxic and nontoxic plants on population dynamics of diamondback moth (Lepidoptera: Plutellidae) and its natural enemies
Autor: Riggin-Bucci, T.M. (BASF Corporation, Research Triangle Park, NC.) ; Gould, F
Assuntos: Animal and plant ecology ; Animal, plant and microbial ecology ; Animals ; BACILLUS THURINGIENSIS ; Biological and medical sciences ; BRASSICA OLERACEA ; BRASSICA OLERACEA VAR. ACEPHALA ; CAROLINA DEL NORTE ; CAROLINE DU NORD ; CONTROL DE INSECTOS ; Demecology ; DENSIDAD DE LA POBLACION ; DENSITE DE POPULATION ; DEPREDADORES ; DIADEGMA ; DIADEGMA INSULARE ; DINAMICA DE POBLACIONES ; DYNAMIQUE DES POPULATIONS ; EFECTOS SECUNDARIOS ; EFFET SECONDAIRE ; ENEMIGOS NATURALES ; ENNEMI NATUREL ; EXPERIMENTACION EN CAMPO ; EXPERIMENTAL PLOTS ; EXPERIMENTATION AU CHAMP ; FIELD EXPERIMENTATION ; Fundamental and applied biological sciences. Psychology ; Ichneumonidae ; INSECT CONTROL ; INSECTE NUISIBLE ; INSECTOS DANINOS ; LUTTE ANTIINSECTE ; NATURAL ENEMIES ; NONTARGET EFFECTS ; NONTARGET ORGANISMS ; NORTH CAROLINA ; PARASITE ; PARASITES ; PARASITISM ; PARASITISME ; PARASITISMO ; PARASITOS ; PEST INSECTS ; PLANT MIXTURES ; PLUTELLA XYLOSTELLA ; Plutellidae ; POPULATION DENSITY ; POPULATION DYNAMICS ; PREDATEUR ; PREDATORS ; Protozoa. Invertebrata ; SIDE EFFECTS
É parte de: Journal of economic entomology, 1997-04, Vol.90 (2), p.241-251
Notas: 1997049234
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Descrição: Studies were conducted in 1993 and 1994 to investigate the effects of intraplot mixtures of toxic (with Bacillus thuringiensis Berliner) and nontoxic plants on population dynamics of diamondback moth, Plutella xylostella (L.), and its natural enemies. In 1993, diamondback moth densities in all plots (mixed and nonmixed) declined after generation 2, apparently because of poor plant quality. In 1994, mixed plots with 83.3% toxic and 16.7% nontoxic plants caused diamondback moth densities on nontoxic plants to decline after 2 generations, whereas population densities in plots of 100% nontoxic plants continued to rise. Diamondback moth, Plutella xylostella (L.), dynamics in plots with 50% toxic plants were intermediate compared with dynamics in the other treatment plots. Percentage of parasitism by the parasitoid Diadegma insulare Cresson was not significantly different between mixed and nonmixed plots. Incidence of the 4 most abundant diamondback moth predators was not different in mixed and nonmixed plots, nor was there a difference in numbers of predators on toxic versus nontoxic plants. These data suggest that intrafield mixtures could serve to decrease density of a target pest such as the diamondback moth, while not adversely affecting natural enemies
Editor: Lanham, MD: Entomological Society of America
Idioma: Inglês

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Impact of intraplot mixtures of toxic and nontoxic plants on population dynamics of diamondback moth (Lepidoptera: Plutellidae) and its natural enemies

Riggin-Bucci, T.M. (BASF Corporation, Research Triangle Park, NC.) ; Gould, F

Lanham, MD: Entomological Society of America

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