Systemic insecticides work by being absorbed into a plant’s tissues, so when insects feed on the plant, they ingest the insecticide. This approach helps protect the entire plant, including new growth, from pests like grubs, mites, and aphids. Systemic options are often used for trees, shrubs, vegetables, and houseplants. Always follow label directions for safe and effective use, and remember that results can vary depending on the type of plant and pest involved.

Application methods depend on the product type.

• Granules: Sprinkle around the base of the plant and water in.
• Concentrates: Mix with water and pour onto the soil or use as a drench.
• Ready-to-spray: Attach to a hose and spray evenly over foliage and soil.

Many systemic insecticides are designed for both indoor and outdoor use, including on houseplants.

• Check the product label to confirm it’s safe for indoor use.
• Apply as directed, usually by mixing granules into the soil or watering with a diluted solution.
• Keep treated plants away from pets and children until the product is fully absorbed.

The time it takes for systemic insecticides to work can vary.

• Some products may start to control pests within a few days, while others might take a couple of weeks as the plant absorbs the treatment.
• Factors like plant size, type, and pest severity can affect results.

Some systemic insecticides are labeled for use on edible plants, including vegetables and fruit trees.

• Always check the product label to ensure it’s approved for your specific crops.
• Follow all instructions regarding application rates and pre-harvest intervals (the waiting period before harvesting).