Does the subject want to ask, "Is spring thunder sunflower phosphorus and copper harmful to vegetables?" ? Harmless to vegetables. Pesticide official website introduced that copper quinoline is an organic copper chelate with broad spectrum, high efficiency, low toxicity and low residue. It is harmless to vegetables and has a good control effect on fungal and bacterial diseases. It has the best effect on bacterial diseases of crops and also has a certain protective effect on fungal diseases.