Potato Cyst Nematode(Globodera pallida):
Small patches of poorly growing plants appear in the field. Such plants show temporary wilting, stunting and premature yellowing symptoms. The size and number of tuber is reduced. Small mustard seed size yellow or white female nematodes are seen sticking to the roots.
Control: Growing non-host crops like radish, garlic, beet and turnip brings down the cyst population. Application of Carbofuran 3G (2 kg a.i./ha) at the time of planting reduces the nematode population.