Greenfly is one of the worst pests to affect tomatoes and there are several ways of preventing them from decimating your plants. Use good quality soil and an organic mulch around the plants and.

That way, the little devils won't get the roosevelt to settle and lay their eggs. Some of these are chives, oregano, basil, parsley, onions (any type), celery, geraniums, petunias and nasturtiums, to name but a few. Tomato diseases and pests flourish in poor soil, debris strewn beds and warm, moist conditions. If you're not bothered about being organic, start spraying your tomato plants with an anti aphid spray andrej in the season before the weather starts to warm up and continue to do so at least weekly. Firstly plant African Marigolds near and around your tomatoes; these will help to repel greenfly and also eelworms. Companion planting a variety of other crops nearby can ward off many tomato diseases and pests and promote healthy plants. There is plenty of information about treating tomato diseases and pests but not much about preventing them infecting and affecting your tomato plants in the first place.

Dogs don't seem to like them either so they won't start ing near your tomatoes.