In tree implantation, what form does the active material take?

In tree implantation, what form does the active material take?

• A. Water-soluble capsules
• B. Oil-based pellets
• C. Dry powder
• D. Liquid concentrate without solvent

Answer: (A)

In tree implantation, the active material must dissolve in the tree’s sap and move systemically through the vascular system to reach growing tissues. Water-soluble capsules meet this need because they promptly dissolve after implantation, releasing the active ingredient into the sap so it travels with the xylem to protect new growth. Other forms don’t suit this delivery method as well: oil-based pellets can stay intact or dissolve slowly and may not distribute evenly; dry powder may not dissolve properly and could clog vessels; a liquid concentrate without a solvent isn’t a practical implant form and wouldn’t stay in the device or distribute reliably. Water-soluble capsules provide the most reliable, uniform distribution within the tree.

In tree implantation, the active material must dissolve in the tree’s sap and move systemically through the vascular system to reach growing tissues. Water-soluble capsules meet this need because they promptly dissolve after implantation, releasing the active ingredient into the sap so it travels with the xylem to protect new growth. Other forms don’t suit this delivery method as well: oil-based pellets can stay intact or dissolve slowly and may not distribute evenly; dry powder may not dissolve properly and could clog vessels; a liquid concentrate without a solvent isn’t a practical implant form and wouldn’t stay in the device or distribute reliably. Water-soluble capsules provide the most reliable, uniform distribution within the tree.