Systemic insecticides move from roots through the vascular system to protect trees and shrubs from pests. This guide highlights select products designed to protect fruit, nut, and ornamental trees, along with shrubs, by delivering protection from within. Each option offers different durations and modes of application, from soil drenches to granules and implants, making it possible to tailor protection to your landscape. The following selections represent reliable, widely available solutions for homeowners and professionals alike.
| Product | Brand | Format | Protection Channel |
|---|---|---|---|
| BioAdvanced 12 Month Tree & Shrub Insect Killer | BioAdvanced | 1-Gallon Concentrate | Root absorption |
| Bonide Annual Tree & Shrub Insect Control with Systemaxx | Bonide | 32 oz Concentrate | Root zone movement |
| Bonide Systemic Granules Insect Killer | Bonide | 1 lb Granules | Systemic movement through plant |
| Acecap 25-Pack Systemic Insecticide Tree Implants | AcecapHywean | Implants | Season-long protection |
| Monterey Fruit Tree & Vegetable Systemic Soil Drench | Monterey | 1 gal | Soil-applied systemic |
BioAdvanced 12 Month Tree & Shrub Insect Killer

BioAdvanced 701525A provides up to 12 months of protection. The systemic insecticide is absorbed by the roots and transported to leaves, offering rainproof protection from the tree to the foliage. It targets a range of pests including Japanese beetles and aphids, helping prevent new infestations after a single application.
Bonide Annual Tree & Shrub Insect Control with Systemaxx

This concentrate dissolves in water to move through the root zone, then travels up into the tree or shrub for systemic protection. It is designed for listed fruit, nut, and ornamental trees and shrubs, including roses, apples, peaches, and cherries. The systemic action supports protection of new growth as well as established tissue.
Bonide Systemic Granules Insect Killer

These ready-to-use granules deliver systemic control against aphids, whiteflies, and scales on trees, flowers, and shrubs. The granules are convenient for use in landscape beds, hanging baskets, and containers, providing internal protection with straightforward application.
Acecap 25-Pack Systemic Insecticide Tree Implants

Acecap implants are designed to minimize chemical exposure to the applicator and environment while delivering season-long protection. They offer control of tree pests for up to two seasons in evergreen trees, with guidance suggesting about 10 implants for a 14-inch diameter trunk.
Monterey Fruit Tree & Vegetable Systemic Soil Drench

Monterey’s soil drench provides systemic protection for fruit and nut trees, as well as a variety of vegetables and herbs. It shields crops like citrus, berries, and pome fruits and is suitable for home orchards seeking long-lasting pest control from the root zone upward.
Buying Guide: Systemic Tree Pest Control Considerations
Key factors to evaluate when choosing a systemic bug killer for trees include duration of protection, target pests, plant compatibility, and site conditions.
- Duration and timing: Some products offer up to 12 months of protection, while others are season-long. Consider your local pest pressure and weather patterns to time applications appropriately.
- Target pests: Different products target specific pests (aphids, scales, beetles, miners). Review labels to confirm compatibility with the pests in your landscape.
- Plant compatibility: Ensure the product is labeled for the types of trees and shrubs you own, including ornamentals, fruit, or nut trees.
- Application method: Soil drenches, granules, and implants each have distinct application steps. Follow label directions for concentration, distribution, and safety.
- Environmental and worker safety: Consider products with reduced environmental exposure and minimal handling risk where possible.
- Resistance management: Rotate products with different active ingredients when possible to minimize pest resistance.
- Rainfastness and irrigation: Some products are designed to be rainfast quickly, while others rely on soil uptake that may be affected by irrigation schedules.
- Non-target considerations: For urban or mixed landscapes, assess potential effects on beneficial insects and nearby vegetation.
In choosing a systemic bug killer for trees, balance duration, pest range, and application practicality with your landscape goals. Always follow label instructions and local regulations to ensure safe and effective protection for your trees and shrubs.