Category 4B: Wood Preservation (PDF)

Overview

Category 4b—Wood Preservation: A Study Guide for Commercial Applicators 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