abstract |
Provided is a slow-release formulation containing a gel composition for use on pests. With the provided slow-release formulation, there is no danger of a volatile substance leaking out or reacting, and the release rate of said volatile substance is kept constant. Specifically, a slow-release formulation comprising at least the following is provided: minute macromolecular tubules, one end of each of which is pointed; and a gel composition for use on pests, said gel composition being inside the minute macromolecular tubules and containing, at least, a volatile substance and an oil-based gelling agent. Said volatile substance constitutes 70.0-99.0% of the mass of the gel composition for use on pests and is released outside the minute macromolecular tubules through said tubules. |