Studies On Citrus Nematode Tylenchulus Semipenetrans On Certain Orchards In Sharkia Governorate

Survey study of plant parasitic nematodes associated with citrus orchard. Study the variability of distribution of plant parasitic nematodes as influenced with certain soil types. Study the seasonal fluctuations of citrus nematode, tylenchulus semipentrans associated with cirus orchards. Study the susceptibility of certain citrus species to the citrus nematode. T. semipentrans. Study the effect of plant age of certain citrus rootstocks on the infectivity of the citrusnematode, T. semipentrans.