Choosing the right systemic insect drench helps protect trees and shrubs from common pests while promoting healthy growth. This guide focuses on ready-to-use and concentrate drenches designed for outdoor use, delivering systemic protection that travels from roots to leaves. Below you’ll find five well-regarded options, along with key features to compare, so you can select the product that best fits your landscape needs.
| Product | Brand | Size | Key Benefit |
|---|---|---|---|
| Fertilome (11207) Tree & Shrub Drench | Ferti-lome | 1 gal | Up to 12 months protection; targets aphids, psyllids, and more |
| Bonide Annual Tree & Shrub Insect Control with Systemaxx | Bonide | 128 oz | Root-uptake systemic protection; long-lasting |
| Fertilome (11206) Tree & Shrub Drench | Ferti-lome | 32 oz | Protected trees and shrubs; 12-month duration |
| 32oz Tree & Shrub Drench | Flagline | 32 oz | Prevents insect damage to trees and shrubs |
| Fertilome 10208 2.5 Gal Tree & Shrub Systemic Insect Drench | Ferti-lome | 2.5 gal | Active ingredient Imidacloprid; broad pest coverage |
The following sections highlight each product with a concise overview, enabling you to compare coverage, usage, and pest targets quickly. All options are formulated for outdoor residential landscapes and emphasize root absorption for systemic protection.
Fertilome (11207) Tree & Shrub Drench (1 gal)
This systemic drench from Fertilome delivers protection for outdoor trees and shrubs by absorbing through the root zone. The label indicates it controls several pests, including aphids and psyllids, with a protective window of up to 12 months. Designed for residential landscapes, its systemic formula helps move insecticide through the plant to reach feeding sites.
Bonide Annual Tree & Shrub Insect Control with Systemaxx, 128 oz
Bonide’s Systemaxx formulation is designed to move through the root zone and up into the tree or shrub, providing year-long protection. It targets a range of wood-boring insects and other pests, and is suitable for listed fruit, nut, and ornamental trees and shrubs. This concentrate is mixed with water to create a systemic treatment that protects new growth as well as established foliage.
Fertilome (11206) Tree & Shrub Drench (32 oz.)
This 32-ounce Fertilome drencher provides systemic protection for outdoor trees and shrubs for up to 12 months. It targets multiple pests, including aphids and psyllids, with a formulation designed for residential landscapes. The product is designed to be mixed and applied through the root zone for effective protection from within the plant.
32oz Tree & Shrub Drench
Flagline’s 32-ounce Tree & Shrub Drench focuses on preventing insect damage. While the label specifics aren’t identical to some larger systems, it provides a practical, ready-to-use option for maintaining tree and shrub health by curbing pest feeding and establishment in the root zone.
Fertilome 10208 2.5 Gal Tree & Shrub Systemic Insect Drench
This large-volume Fertilome drencher uses a liquid concentrate with the active ingredient imidacloprid. It targets aphids and other insects, delivering systemic protection through the plant’s vascular system. The 2.5-gallon size is suitable for larger landscapes or frequent application needs across multiple trees and shrubs.
Voluntary Purchasing Group Fertilome Gallon Tree & Shrub Systemic Insect Drench
This Gallon-sized drench provides a preventive shield against insect damage for trees and shrubs. It’s designed for systemic uptake, helping protect new growth and the overall health of landscape plantings across extended periods.
BioAdvanced 12 Month Tree And Shrub Protect And Feed, 64 Oz
BioAdvanced combines a 12-month protective insect killer with a slow-release fertilizer. This systemic approach promotes plant health while guarding against pests from roots to leaves. The 64-ounce concentrate is designed to deliver extended protection with a single application per season.
Bonide Annual Tree & Shrub Insect Control with Systemaxx, 32 oz
This 32-ounce concentrate uses Systemaxx to move through the root zone and into the plant, protecting new growth and established tissue. It’s suitable for a variety of listed fruit, nut, and ornamental trees and shrubs, making it a versatile option for mixed landscapes.
Buying Guide: Key Purchase Considerations
When selecting a tree and shrub systemic insect drench, consider pest targets, application size, and timing. Look for active ingredients that match your pest profile, such as aphids or psyllids, and check label guidance for outdoor residential use. Larger volumes like 2.5 gallons or 128 ounces can be more economical for bigger landscapes but require appropriate application equipment and safety practices. Concentrates typically need mixing with water, so ensure you have the necessary sprayer or drench applicator. Consider protection duration (12 months vs. seasonal) and whether the product offers added fertilizer benefits.
Usage variations matter: some drenches travel through the root zone more aggressively, while others emphasize protection of new growth. For mixed plantings, verify compatibility with roses, fruit trees, or ornamental species on the label. If you have containerized trees, confirm root uptake efficiency for that setup. Finally, check any local gardening regulations or environmental cautions related to systemic insecticides in your area.