Abstract
The citrus red mite, Panonyehus citri (McGregor), was first discovered in Israel in the winter of 1979/80 on citrus trees at Kefar Brandeis (in the central Coastal Plain),, has since spread on all varieties of citrus throughout the Coastal Plain, northern Negev, and Hula Valley, causing substantial damage. Periodic counts of P. citri populations, carried out from November 1979 to March 1983, showed that the population peak occurred at the end of autumn or early winter, and the ebb during summer. The phytoseiid mite Amblyseius swirskii Athias-Henriot was common in plots infested with P. citri, but this predator as well as other local natural enemies did not curb the outbreaks of the pest.
