Which application method involves applying a pesticide solution directly onto the trunk of a tree?

Which application method involves applying a pesticide solution directly onto the trunk of a tree?

• A. Micro Injection.
• B. Micro-infusion.
• C. Soil Injection.
• D. Spray application.

Answer: (B)

The key idea is delivering pesticide through the tree’s own transport system by applying it directly to the trunk so the tree takes it up and moves it to other tissues. Micro-infusion involves placing a pesticide solution on the trunk surface and allowing the tree to absorb it, letting the chemical travel systemically within the tree. This method targets the interior of the tree while minimizing surface runoff and exposure outside the tree. In contrast, micro-injection would introduce the chemical by puncturing and forcing it into the tissue, which is more about direct insertion rather than surface application for trunk uptake. Soil injection targets the root zone, not the trunk, and spray application spreads the product over surfaces or foliage, not specifically onto the trunk for trunk-to-tissue uptake.

The key idea is delivering pesticide through the tree’s own transport system by applying it directly to the trunk so the tree takes it up and moves it to other tissues. Micro-infusion involves placing a pesticide solution on the trunk surface and allowing the tree to absorb it, letting the chemical travel systemically within the tree. This method targets the interior of the tree while minimizing surface runoff and exposure outside the tree.

In contrast, micro-injection would introduce the chemical by puncturing and forcing it into the tissue, which is more about direct insertion rather than surface application for trunk uptake. Soil injection targets the root zone, not the trunk, and spray application spreads the product over surfaces or foliage, not specifically onto the trunk for trunk-to-tissue uptake.