How is an implantable capsule containing insecticide installed?

How is an implantable capsule containing insecticide installed?

• A. A plug containing the insecticide is tapped into a drilled hole and set in place with a mallet.
• B. The capsule is glued to the exterior of the stem.
• C. The capsule is screwed into a predrilled hole using a screwdriver.
• D. The capsule is suspended in the soil near the root zone.

Answer: (A)

Implantable insecticide capsules are placed inside the plant by creating a drilled bore and seating a plug that contains the insecticide. The capsule is tapped into the hole and the plug is set flush with a mallet so the capsule sits securely within the wood tissue. This positioning allows the insecticide to be distributed through the plant’s vascular system, providing targeted protection from inside the stem or trunk. This method is the only one that truly places the active material into the plant interior where it can be taken up and move with the xylem/phloem. Gluing to the exterior, screwing into a hole, or suspending a capsule in soil would not deliver the chemical where it’s needed and wouldn’t provide the same systemic protection.

Implantable insecticide capsules are placed inside the plant by creating a drilled bore and seating a plug that contains the insecticide. The capsule is tapped into the hole and the plug is set flush with a mallet so the capsule sits securely within the wood tissue. This positioning allows the insecticide to be distributed through the plant’s vascular system, providing targeted protection from inside the stem or trunk.

This method is the only one that truly places the active material into the plant interior where it can be taken up and move with the xylem/phloem. Gluing to the exterior, screwing into a hole, or suspending a capsule in soil would not deliver the chemical where it’s needed and wouldn’t provide the same systemic protection.