noun
: a spray applied to trees and shrubs when they are in an inactive state at any time between leaf fall and the beginning of bud swelling at the start of the next growing season
noun
: a spray applied to trees and shrubs when they are in an inactive state at any time between leaf fall and the beginning of bud swelling at the start of the next growing season
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012