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Titolo:
INTERACTIONS AMONG HELICOVERPA-ARMIGERA (LEPIDOPTERA, NOCTUIDAE), ITSLARVAL ENDOPARASITOID MICROPLITIS-CROCEIPES (HYMENOPTERA, BRACONIDAE), AND BACILLUS-THURINGIENSIS
Autore:
BLUMBERG D; NAVON A; KEREN S; GOLDENBERG S; FERKOVICH SM;
Indirizzi:
AGR RES ORG,VOLCANI CTR,DEPT ENTOMOL IL-50250 BET DAGAN ISRAEL
Titolo Testata:
Journal of economic entomology
fascicolo: 5, volume: 90, anno: 1997,
pagine: 1181 - 1186
SICI:
0022-0493(1997)90:5<1181:IAH(NI>2.0.ZU;2-9
Fonte:
ISI
Lingua:
ENG
Soggetto:
BENEFICIAL ARTHROPODS; HELIOTHIS-ARMIGERA; WORKING-GROUP; COTTON; PESTICIDES; PARASITES; PREDATORS; PROGRAM; BERL; LEP;
Keywords:
HELICOVERPA ARMIGERA; MICROPLITIS CROCEIPES; BACILLUS THURINGIENSIS; PARASITOID; HOST-PARASITOID-MICROBE INTERACTIONS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
30
Recensione:
Indirizzi per estratti:
Citazione:
D. Blumberg et al., "INTERACTIONS AMONG HELICOVERPA-ARMIGERA (LEPIDOPTERA, NOCTUIDAE), ITSLARVAL ENDOPARASITOID MICROPLITIS-CROCEIPES (HYMENOPTERA, BRACONIDAE), AND BACILLUS-THURINGIENSIS", Journal of economic entomology, 90(5), 1997, pp. 1181-1186

Abstract

Interactions among Helicoverpa armigera (Hubner), its larval endoparasitoid Microplitis croceipes (Cresson), and Bacillus thuringiensis Berliner were evaluated under laboratory conditions. Prefeeding H. armigera with lethal concentrations (0.08 and 0.16 mg/g) of Dipel (B. thuringiensis subsp, kurstaki strain HD-1) did not prevent M. croceipes fromovipositing in the infected host larvae. Development of parasitoid immatures in host larvae prefed for 24 or 48 h with the dietary B. thuringiensis was not adversely affected. However, feeding on the same diets for 72 h was detrimental to the parasitoid because of premature hostmortality. Continuous exposure of H. armigera larvae to the diets at different time intervals after parasitization (0, 4, or 6 d), prevented successful development and pupation of M. croceipes, mainly caused by early mortality of the host. Feeding parasitoid adults with B. thuringiensis preparations of subsp. kurstaki strain HD-73 mixed in honey was not harmful to the wasps. Moreover, Dipel or purified B. thuringiensis spores of HD-73, but not purified crystals of this strain, increased longevity of the wasps compared with the control (honey alone). Microscopic observations and color indications showed that the adult parasitoid ingested the honey with the Dipel. The incompatibilities between application of B. thuringiensis to host larvae and parasitization with M. croceipes are discussed with regard to combining microbial and entomophagous control strategies against H. armigera.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/07/20 alle ore 18:28:10