Citation
Hussein M. Y., . and Yahya H. J., . and Schilthuzen M., . A new egg parasitoid for possible biological control of the asiatic maize borer in Malaysia. pp. 111-116. ISSN 0126-6128
Abstract
A species of egg parasitoid tentatively identified as Trichogramma papilionis Nag. was found attacking egg masses o/Ostrinia furnacalis Guenee. The life cycle of the parasitoid was completed within 9 days; the egg larval and pupal stages lasted for 2 4 and 3 days respectively. The female: male sex ratio was 3:1 higher than the usual 2:1 sex ratio for Trichogramma spp. Super parasitism was observed whereby 3 individuals were produced from one host egg. All eggs were parasitized in 4 days at 2:1 (host: parasitoid) ratio. The female parasitoid showed a high degree of searching efficiency and normally parasitized all eggs in a batch before continuing her search for the next egg batch. The female spent 40 of the time searching on the upper surface of a maize leaf 30 on the lower surface and 30 on the leaf edges. The female searching and parasitization behaviour followed the Type III functional response curve. The female parasitoid showed positive response to the odour of the maize leaf indicating a possibility that a kairomone or contact communication chemical is involved. T. papilionis appeared to be a very efficient egg parasitoid ofO. furnacalis and a good candidate for a biological control programme of the pest.
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Abstract
A species of egg parasitoid tentatively identified as Trichogramma papilionis Nag. was found attacking egg masses o/Ostrinia furnacalis Guenee. The life cycle of the parasitoid was completed within 9 days; the egg larval and pupal stages lasted for 2 4 and 3 days respectively. The female: male sex ratio was 3:1 higher than the usual 2:1 sex ratio for Trichogramma spp. Super parasitism was observed whereby 3 individuals were produced from one host egg. All eggs were parasitized in 4 days at 2:1 (host: parasitoid) ratio. The female parasitoid showed a high degree of searching efficiency and normally parasitized all eggs in a batch before continuing her search for the next egg batch. The female spent 40 of the time searching on the upper surface of a maize leaf 30 on the lower surface and 30 on the leaf edges. The female searching and parasitization behaviour followed the Type III functional response curve. The female parasitoid showed positive response to the odour of the maize leaf indicating a possibility that a kairomone or contact communication chemical is involved. T. papilionis appeared to be a very efficient egg parasitoid ofO. furnacalis and a good candidate for a biological control programme of the pest.
Additional Metadata
| Item Type: | Article |
|---|---|
| AGROVOC Term: | Parasitoids |
| AGROVOC Term: | Maize |
| AGROVOC Term: | Biological control |
| AGROVOC Term: | Trichogramma |
| AGROVOC Term: | Ostrinia furnacalis |
| AGROVOC Term: | Superparasitism |
| AGROVOC Term: | Kairomones |
| AGROVOC Term: | Life history |
| AGROVOC Term: | Longevity |
| AGROVOC Term: | Sex ratio |
| Geographical Term: | Malaysia |
| Depositing User: | Ms. Suzila Mohamad Kasim |
| Last Modified: | 27 Apr 2025 23:21 |
| URI: | http://webagris.upm.edu.my/id/eprint/22725 |
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