Can plants take up pesticides previously used on a garden plot?
Yes, some plants will take up some pesticides. A pesticide that is designed to be taken up by plants, and then transported to other parts of the plant to control pests, is called systemic. For example, a systemic pesticide applied to the soil may be active in controlling leaf feeding insects. Most pesticides used in the garden are not systemic. To determine if a pesticide is systemic, carefully read the use directions or consult your county Extension office. Some pesticides that are not designed to be systemic can be taken up to a lesser degree by some plants. It is less likely that these pesticides will be transported to the edible portion of the plant at concentrations that are of concern. Pay close attention to root crops planted in soil where pesticides have been used recently. Also, pesticides that break down rapidly in soil are less likely to be present in the soil at the time of replanting.
Yes, some plants will take up some pesticides. A pesticide that is designed to be taken up by plants, and then transported to other parts of the plant to control pests, is called systemic. For example, a systemic pesticide applied to the soil may be active in controlling leaf feeding insects. Most pesticides used in the garden are not systemic. To determine if a pesticide is systemic, carefully read the use directions or consult your county Extension office. Some pesticides that are not designed to be systemic can be taken up to a lesser degree by some plants. It is less likely that these pesticides will be transported to the edible portion of the plant at concentrations that are of concern. Pay close attention to root crops planted in soil where pesticides have been used recently. Also, pesticides that break down rapidly in soil are less likely to be present in the soil at the time of replanting. Consult your county Extension office for advise on replanting into soil where pesticides
