Effect of adult nutrition on biological attributes of Tetrastichus howardi (Olliff) (Hymenoptera: Eulophidae) reared on pupa of pink borer
DOI:
https://doi.org/10.5958/2582-2683.2021.00022.8Keywords:
Sesamia inferens, pupal parasitoid, biology, Adult feeding, sugarcaneAbstract
The biological attributes of Tetrastichus howardi (Olliff) (Eulophidae: Hymenoptera) were studied on different nutrients regimes at 26 ± 20C and 65 ± 5% relative humidity in the laboratory on pupa of pink borer, Sesamia inferens (Walker) (Lepidoptera: Noctuidae). The development period varied from 18.00 to 20.0 days in different nutrient regimes and it was at par with each other. The number of progeny emerged from each pink borer pupa was more in honey-water and crushed pink borer solutions as compared to sugar solution and starved conditions. Female progeny was significantly more in fed (91.70 to 92.88%) than starved condition (89.43%).The sex-ratio (Male: Female) in three nutrition regimes varied from 1:11.18 to 1:13.55. It is concluded that the honey water and pink borer solution could be the optimal food source in providing an adequate amount of nutrition required by T. howardi in its reproduction activity.
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