A systemic pesticide is a type of pesticide that is absorbed by a plant and spreads throughout its tissues, providing long-lasting protection against pests and diseases. When a systemic pesticide is applied to the soil or sprayed onto the plant, it is taken up by the roots or leaves and transported throughout the plant, making all parts of the plant toxic to pests that feed on it.
There are several types of systemic pesticides, including neonicotinoids, which are widely used to protect crops from insects, and systemic fungicides, which are used to protect crops from fungal diseases. Systemic pesticides are also used in some home and garden products to control pests on ornamental plants.
While systemic pesticides can be effective in controlling pests and diseases, they can also have negative impacts on non-target organisms, such as bees, butterflies, and other beneficial insects. Because systemic pesticides are absorbed by the plant and can remain present for a long time, they can be harmful to insects that feed on the plant or its nectar.
Furthermore, some systemic pesticides have been linked to environmental and health concerns, including water contamination, bee colony collapse disorder, and effects on human health.
Therefore, it's important to use systemic pesticides only when necessary and to follow the label instructions carefully. Consider using non-toxic and organic pest management practices, such as crop rotation, companion planting, and mechanical controls, before resorting to systemic pesticides.
