Potato and Tuber Crops

Seed Plot Technique

• The basic information on build up of aphid population in various regions made it possible to develop Seed Plot Technique for growing healthy seed potato in sub tropical plains of India under low aphid periods (Pushkarnath, 1967).
• Seed plot technique in brief can be described as raising the crop during a period, when aphid population is very low after taking pre-cautions such as use of insecticides against aphids, periodical rouging of mosaic (virus) affected plants and finally dehaulming the crop before aphids population attained the critical level of 20 aphids per 100 compound leaves.