Category 4b: Wood Preservation (PDF)

Overview

Category 4b—Wood Preservation focuses on the application of pesticides to wood products such as crossties, poles, shingles, posts, and other wood products that are not part of a structure when treated and are or will be exposed to insects, fungi, marine pests, or weather. To learn more, visit pested.osu.edu and agri.ohio.gov/pesticides. ©2022