Final answer:
Site history provides information on previous pest problems and treatments, which can inform pest management decisions.
Step-by-step explanation:
Site history can inform a pest management decision by providing information on previous pest problems and treatments. This information is valuable in understanding the types of pests that have plagued the site in the past and the methods that were effective in controlling them.
By analyzing site history, pest management professionals can make informed decisions about the best approach to manage current and future pest problems.