Guideline for the efficacy evaluation of insecticides. Leaf miners on ornamentals

calceolaria carthamus chrysantheme chrysanthemums crisantemos efficiency eficacia ensayo gerbera gypsophila insecte nuisible insecticidas insecticide insecticides liriomyza methode methods ornamental plants pest insects phytomyza plantas ornamentales plante ornementale primula senecio testage testing