This standard specifies the methods and basic requirements for field trials of fungicides against tomato early blight (Alternaria solai) and late blight (Phytophthora infestans). This standard is applicable to field trials and efficacy evaluation of fungicides for the control of tomato early blight and late blight registration. Other field efficacy tests shall be carried out with reference to this standard.
GB/T 17980.31-2000 history
2000GB/T 17980.31-2000 Pesticide-Guidelines for the field efficacy trials(I)-Fungicides against early and late blight of tomato