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ISHS Acta Horticulturae 358: International Symposium on Alliums for the Tropics

BIOLOGY AND LIFE HABITS OF THE ONION THRIPS (THRIPS TABACI LINDEMAN)

Author:   J. Salas
Abstract:
Onion (Allium cepa L.) is, after tomato, the most economically important and widely consumed vegetable crop in Venezuela. National production is about 70 000 tons, mainly for fresh consumption. The onion thrips (Thrips tabaci Lindeman [Thysanoptera: Thripidae]), is one of the major limiting factors affecting yield. Larvae and adults rasp the leaves and suck the sap causing chlorotic spots and burned leaves, foliar deformities, and reductions of bulb size.

Knowledge of the biology and life habits of this insect pest will contribute to a better understanding of the relationships between the crop and the environment, and thus, enable the design of effective strategies to control its populations within an integrated pest management programme (IPM).

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