(1). General Organization of Seed production, Homs, Syria.
(*Corresponding author: Dr. Gassan Youssef. E-Mail:email@example.com).
Received: 21/03/2019 Accepted: 07/09/2019
Life table studies for potato tuber moth, Phthorimaea operculella (Zeller) were carried out to compare an artificial medium to potato tubers, Solanum tuberosum L. for rearing Ph. operculella larvae. The calculated biological parameters were: Net reproductive rate of increase (R0), Generation time (Gt), Intrinsic rate of increase (rm), Finite rate of increase (λ) and Population doubling time (Dt). The obtained results indicated that potato tubers proved to be more favorable for achieving the highest developmental and multiplication rates of Ph. operculella, than artificial diet. The natural mortality figures; Apparent Mortality (AM), Real Mortality (RM) and Indispensable Mortality (IM) for larvae reared on potato tubers were 46.77, 29 and 20.21%, respectively. Meanwhile, the highest mortality rates were 51.72, 30 and 19.29% when larvae were fed on artificial diet. It is quite worth to mention out here that potato tubers are more attractive feeding source than artificial diet for rearing Ph. operculella for research purposes.
Keywords: Potato tuber moth, Phthorimaea operculella, Life table, Artificial diet.
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