Which device consists of a harness of plastic tubing connecting to plastic trees?

Which device consists of a harness of plastic tubing connecting to plastic trees?

• A. Consists of a harness of plastic tubing connecting to plastic trees.
• B. A plug containing the insecticide is tapped into a drill hole and set in place with a mallet.
• C. A injection method that uses the pressure to place small amounts of pesticide directly into the tree trunk.
• D. A handheld applicator that dispenses a small, measured amount of pesticide.

Answer: (A)

This describes a distribution system that delivers pesticide to multiple trees from a single source. A harness of plastic tubing connected to plastic trees means there’s a manifold-like setup where each tube leads to a tree, allowing small, controlled amounts to be introduced into several trees at once. This kind of device is used for trunk- or vascular-based delivery, so the pesticide moves from the reservoir through the tubing and into each tree’s uptake pathway. The other methods involve single-tree applications or surface methods: inserting a plug into a drill hole targets one tree; a pressure-based trunk injection delivers pesticide directly into the tree without a tubing network; and a handheld applicator dispenses a measured amount as a spray or spot treatment.

This describes a distribution system that delivers pesticide to multiple trees from a single source. A harness of plastic tubing connected to plastic trees means there’s a manifold-like setup where each tube leads to a tree, allowing small, controlled amounts to be introduced into several trees at once. This kind of device is used for trunk- or vascular-based delivery, so the pesticide moves from the reservoir through the tubing and into each tree’s uptake pathway.

The other methods involve single-tree applications or surface methods: inserting a plug into a drill hole targets one tree; a pressure-based trunk injection delivers pesticide directly into the tree without a tubing network; and a handheld applicator dispenses a measured amount as a spray or spot treatment.