Development of Trichogramma australicum Girault (Hymenoptera: Trichogrammatidae) on Helicoverpa armigera (Hübner) Eggs (Lepidoptera: Noctuidae)

Dahlan, A. N. and Gordh, Gordon (1996) Development of Trichogramma australicum Girault (Hymenoptera: Trichogrammatidae) on Helicoverpa armigera (Hübner) Eggs (Lepidoptera: Noctuidae). Australian Journal of Entomology, 35 4: 337-344. doi:10.1111/j.1440-6055.1996.tb01415.x


Author Dahlan, A. N.
Gordh, Gordon
Title Development of Trichogramma australicum Girault (Hymenoptera: Trichogrammatidae) on Helicoverpa armigera (Hübner) Eggs (Lepidoptera: Noctuidae)
Journal name Australian Journal of Entomology   Check publisher's open access policy
ISSN 1326-6756
Publication date 1996-01-01
Sub-type Article (original research)
DOI 10.1111/j.1440-6055.1996.tb01415.x
Open Access Status Not yet assessed
Volume 35
Issue 4
Start page 337
End page 344
Total pages 8
Publisher Blackwell Publishing
Language eng
Subject 1105 Ecology, Evolution, Behavior and Systematics
1102 Agronomy and Crop Science
1109 Insect Science
Abstract Trichogramma australicum were reared on eggs of Helicoverpa armigera. Immature T. australicum were studied with a confocal laser scanning microscope and a light microscope. Development of egg, larva, prepupa and pupa required about 24-26, 24-26, 42-47 and 84-92 h, respectively, at 28°C, 45% RH and 12L:12D photoperiod. The eggs of T. australicum increased significantly in size during incubation. The larval mandibles were gradually revealed as the larva increased in size. Exuviae were not found during the larval stage, and we conclude that T. australicum has one larval instar. Staining larvae and pre-pupae with 1% aniline blue dissolved in Neisenheimer's solution induced fluorescence. Stained larvae and pre-pupae gave a clear image of anatomy when observed with a confocal laser scanning microscope. Urate bodies appeared at the onset of the prepupal stage. The vitelline membrane of host egg gradually blackened. Legs, wings, antennae, body segmentation, genitalia, colour of compound eyes and ocelli became distinct during the prepupal stage. Larval integument and mandibles were shed at the onset of pupation. The adult wasps emerged 182.40 ± 0.40 h (n = 10) after oviposition, 2.80 ± 0.25 (n = 10) wasps emerged from a host egg, and the sex ratio was 1 ♂ :3 ♀♀.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import
 
Versions
Version Filter Type
Citation counts: Scopus Citation Count Cited 25 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Fri, 06 Apr 2018, 05:59:11 EST