The invention relates to the technical field of vegetable planting, in particular to a
pest control method for autumn tomatoes. The
pest control method comprises a method for controlling tomato aphids and a method for controlling
trialeurodes vaporariorum. The method for controlling the tomato aphids includes the step of spraying the surfaces of leaves of the autumn tomatoes with a green Chinese onion
skin rotten leaf solution when the aphids are found on the back faces of the leaves of the autumn tomatoes, wherein the use number of the green Chinese onion
skin rotten leaf solution is 20 L per mu, and spraying is carried out in the afternoon. The method for controlling the
trialeurodes vaporariorum includes the step of spraying the surfaces of leaves of the autumn tomatoes with a pepper
stock solution when the
trialeurodes vaporariorum is found on the back faces of the leaves, wherein the use number of the pepper
stock solution is 15 L per mu, the pepper
stock solution is continuously used three to four times, and the use interval ranges from 7 days to 10 days. The
pest control method has the advantages that the green Chinese onion
skin rotten leaf solution and the pepper stock solution are both made by a user, cost is low, and the pest
control effect is good; brown
sugar water made by the user is good in gray mold prevention and
treatment effect, after the autumn tomatoes are sprayed with the brown
sugar water, the autumn tomatoes are generally free of the gray mold, the abloom rate ranges from 55% to 65%, the fruiting rate ranges from 45% to 50%, and the autumn tomatoes are high in yield, high in nutritive value and good in taste.