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INTERNATIONAL JOURNAL OF AGRICULTURAL TECHNOLOGY


Volume 15, No. 04, Month JULY, Year 2019, Pages 557 - 566


Effects of honey and flower on the longevity and parasitization of cotesia vestalis haliday (hymenoptera: braconidae) on plutella xylostella (l.) (lepidoptera: plutellidae)

Chau, N. N. B., Kieu, N. T. P. and Dung, N. V. T.


Abstract Download PDF

Potential effects of honey and yellow cosmos (Cosmos sulphureus) on the longevity and parasitization of Cotesia vestalis were investigated. Results showed that when comparing diets from different honey-diluted solutions to water, 50% honey-diluted solution significantly increased longevity for both male and female parasitoid Cotesia vestalis. Mean longevities of male and female parasitoids were 10.16 ± 0.59 days and 10.8 ± 0.76 days, respectively. Similar results were obtained when using yellow cosmos flower (C. sulphureus), 50% honey-diluted solution, mixed honey and pollen, and honey-pollen to evaluate the longevity of C. vestailis parasitoids. Moreover, honey-pollen treatment significantly increased the parasitism efficiency of C. vestalis on the diamondback moth Plutella xylostella (L.) larvae, which gave the highest mean number of emergent parasitoids per day compared to the control. Results indicated that diets of honey and yellow cosmos (C. sulphureus) pollen extended longevity and benefitted the parasitization of C. vestalis.


Keywords

Cotesia vestalis, longevity, Plutella xylostella, pollen, yellow cosmos (Cosmos sulphureus)



INTERNATIONAL JOURNAL OF AGRICULTURAL TECHNOLOGY


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