""Spraying Crops: Why, When, and How"" is a comprehensive guide to the practice of crop spraying, written by Clarence Moores Weed and first published in 1903. The book covers a wide range of topics related to crop spraying, including the reasons why it is necessary, the best times to spray, and the various methods and equipment used in the process. Weed also provides detailed information on the different types of pests and diseases that can afflict...