Wash one pound of cleaned, fresh or dry, tomato seed in one gallon of the mixture for 40 minutes. Provide gentle and continuous agitation. Remove seed and spread on paper to air dry promptly. Prepare fresh bleach solution for each batch of seed. Seed germination may be reduced with some lots of seed.
Control aphids early in the season to reduce initial infection and spread.
It may be a good idea to spray weeds bordering the field with an aphicide prior to seeding or planting the field, and all annual weeds in the field should be destroyed. Avoid planting tomatoes close to established cucumber, squash, potato, tobacco, and pepper fields. Greenhouses containing tomatoes should be bordered by at least 150 feet of turf or pavement. Decontaminate stakes, tools, tables, etc. Keep all solutions fresh.