EVALUATION OF EFFECT OF NATURAL PLANT PRODUCT AGAINST POTATO CYST NEMATODE GLOBODERA ROSTOCHIENSIS PATOTYPE RO1

Abstract

Plant parasitic nematodes attack a wide range of crop species. The survival of one quarantine   plant parasitic nematode species attack potato Globodera rostochiensis patotype Ro1 was evaluated in an in vitro and a pot experiments by tannin aqueous solutions at different concentrations. In the in vitro experiment a different tannin concentration were tested for effect on the egg hatch of the nematode.All the tannin concentrations tested exerted a highly significant reduction of egg viability from 56 to 87% in comparison to the untreated control. In the pot experiment, tannins, as aqueous solutions at rates of 100, 250 and 450 g/m², were applied to soil at two different application times (at sowing and at sowing and two weeks later). All tested doses were effective to reduce the number of cyst/100 g soil, eggs and juveniles/g soil and reproduction rate in comparison to untreated control. The number of eggs and juveniles/cyst was not influenced by the different applied rates of tannins.