Dried onions should never be allowed to come into contact with damp soil. 9.3 Inhibition of sprouting Sprouting of both potatoes and onions is a problem in temperate countries, where they are stored for up to eight months. Long-term storage may not be necessary in warmer climates where growers may produce more than one crop a year. Little is known about the effectiveness of sprout suppressants when used on tropical root and tuber crops. Application method Spray or mist .
Produce is sprayed to runoff to ensure complete coverage.
This system has no spray nozzles to wear out or become blocked, and the high flow rate through the pump keeps the mixture agitated. Where small quantities of produce are to be treated, the fungicide mixture is made up in a small container and produce is dipped by hand. The fungicide suspension must be agitated constantly. Workers dipping by hand may develop skin reaction to some fungicides, and they should be supplied with rubber gloves for their protection. Smoke or fumigant .