Vol - 17, Issue - 09
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Journal of the Austrian Society of Agricultural Economics (JASAE)
Journal ID : JASAE-13-09-2021-108
Total View : 379

Title : STUDY OF POTATO TUBER MOTH BIOLOGY (PHTHORIMAEA OPERCULELLA), IN THE VEGETATION PERIOD, IN KORCA REGION
by Besnik Skenderasi, Gjergji Mero, Nikolin Karapanco, Shpend Shahini,
Abstract : Potato tuber moth (Phthorimaea operculella) [1] (Zeller), is a pest mainly of solanaceous plants, especially for potato crop. In the period of full potato germination, the adult insects after mating begin to lay eggs mainly in leaves or tubers throughout the vegetation. When there are soil cracks or potato seed is sown shallow, moths prefer to lay eggs near potato buds. In the leaves it forms galleries between the two epidermis of the leaf or in the stalk and in the tubule. The damage in the leaves does not turn out to cause major damage, but in potato tubers the damage can go up to 100% of production, both in the field and in the storage. Tubers are damaged by reducing the quantity and quality but also the values as planting material. During the vegetation, the potato crop is damaged by 4 generations of the pest, a fifth generation begins to develop during October in the potato waste left on the ground after harvest, in tobacco, tomatoes, sugar beets, weeds or in storage. Farmers find it very difficult to control the development of this pest, despite the chemical treatments carried out against this pest. Cultivation of resistant species, as well as the application of good agricultural practices such as frequent irrigation with reduced water rates, planting potato seeds at a depth of not less than 10 cm can ensure a good yield. Pest monitoring mainly through sexual pheromone use and the application of chemical treatments immediately after the first larvae hatching from the egg, reduce significantly yield damage in both quantity and quality.

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