Abstract

PEREZ, Juan Carlos; RAMIREZ, Susana  and  SURIS, Moraima. Life table of Plodia interpunctella Hübner (Lepidoptera: Pyralidae) on chickpea (Cicer arietinum L.) under laboratory conditions. Rev. Protección Veg. [online]. 2015, vol.30, n.1, pp. 14-18. ISSN 2224-4697.

The objective of this study was to construct the life table of Plodia interpunctella Hübner on chickpea. The experiment was conducted at the Laboratory of Entomology, National Center for Plant and Animal Health (CENSA), under average conditions of temperature and relative humidity of 26.6 ± 1.0°C and 78.2 ± 6.5%, respectively. For the study, a cohort of 133 eggs was selected. After egg hatching, the number of larval instars and mortality in each of the insect stages were determined. With the results, the life table was constructed and several population parameters calculated. This lepidopteron showed high fecundity (mx) with an average of 463 ± 34.28 eggs per female. The larval period passed through five instars, with the largest number of deaths in the first instar, which allowed that 57.53% of the total of the hatched larvae reached the adult stage. In the population parameters, a generation time (T) of 40.57 days and a high net reproductive rate (R0) (252.71) were obtained, assuring replacement in a high number. The intrinsic rate of increase (rm) was of 0.14 and the finite rate of increase (ë) 1.15. The high population values make of this insect species an important pest for chickpea under storage conditions.

Keywords : chickpea; Cicer arietinum; Plodia interpunctella; life table; Cuba.

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