INFLUENCE OF DIFFERENT HOSTS ON THE SENSITIVITY OF CITRUS NEMATODE, TYLENCHULUS SEMIPENETRANS TO CERTAIN NEMATICIDES

Document Type : Original Article

Author

Central Agricultural Pesticides Laboratory, Agricultural Research Centre, Dokki, Giza, Egypt

Abstract

The influence of the host plants on citrus nematode T.semipenetrans sensitivity to the to nematicides : Oxamyl and Fenamiphos was studied . Samples of citrus nematode were collected from three different locations . The sensitivity levels of the nematode to the two nematicides were apparently influenced by host plant variety and soil type . Fenamiphos was more effective aganist the three citrus hosts in the three soil types . Citrus nematode fed on sour orange tolerated the two nematicides over those reared on the other two host citrus plants . Citrus nematodes that were reared in loamy clay or clay soil were more sensitive to the nematicides than those reared in sandy

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