In several ways, yes: a systemic soil drench is absorbed through the roots and works from inside the tree, which removes the spray drift and surface runoff that come with spraying a canopy. It still calls for care, because the insecticide reaches insects feeding on the treated tree, including bees foraging on its blooms, so timing and placement matter as much as the method.

How does a systemic insecticide work differently from a spray?

A systemic insecticide is taken up by the roots and carried through the tree's vascular system, so insects that feed on the tree ingest it. A spray lands wherever the wind carries it, and because a canopy often overlaps a garden bed, an insecticide sprayed on a tree can settle on the plants below.

How is a systemic drench applied with the least risk?

Before the tree flowers, and away from water and blooming plants that pollinators are visiting. In early spring, just before or as the tree leafs out, Once A Year Insecticidal Drench w/Merit is mixed and applied around the base with nothing more than a bucket or watering can, and one application protects the tree for a full year.

When is spraying still the better choice?

When a tree stands over vegetables or other food plants and the pest is on the foliage. Applied to the affected leaves during calm morning or evening hours, Garden Insect Spray with Spinosad is labeled for fruits and vegetables as well as trees and is safe to use around beneficial insects.

Frequently Asked Questions

Can a trunk injection be used on a fruit tree?

No. The Multi Insect Killer Tree Injection Kit should not be applied to food bearing plants.

Does a systemic drench harm bees?

Not unless they are foraging on treated blooms, which is why the drench is applied before flowering begins.

Can a systemic drench be used near a pond or stream?

No. Application near water bodies should be avoided.

How often does a systemic drench need to be applied?

Once a year. A single application gives 12 months of protection.