Lea from Ny, Ny writes
Ideally, apply Bonide Liquid Copper Fungicide Concentrate before fungus is visible. Otherwise, apply the product immediately when you first notice signs of fungal disease. If the fungus is on fruit trees or vegetable plants, you can safely continue to spray every seven to 10 days until harvest.It should be applied when you are not expecting rain for at least 24 hours following the application. There is no specific pre harvest interval time for the Bonide Liquid Copper Fungicide Concentrate on tomatoes. You can apply the product up until the harvest day.
Answer last updated on: 03/15/2021