6_1_strict_veg_potatoes

The cultivar/variety chosen must offer good prospects for economic success with minimal use of agrochemicals.

IP guidelines must provide a list of the relative susceptibilities of the commonly grown cultivars to all important pests and diseases.

Late Blight: Highly susceptible cultivars must not be grown. The use of resistant/tolerant cultivars is the most appropriate preventive measure.

In nematode-infested fields, cultivars of high resistance to one or more of the nematode species or their dominating pathotypes must be grown.

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