The seasons for outdoor spraying are two: the summer or growing season, and the winter or dormant season. Summer sprays are invariably not applied so strong as winter sprays, because the bark on the new shoots as well as the leaves would be injured by a spray of a strength which would not only be entirely safe, but advisable to use when a plant was dormant. Dormant sprays are mostly confined to those applied for protection against vegetable parasites and those intended to destroy scale insects. Some useful winter work is often done in the destroying of egg masses and cocoons by torches and the application of creosote or other strong paints by hand in small quantities; but this is not, strictly speaking, spraying. Summer spraying includes nearly all the methods used in the dormant season, with the spray made more or less dilute, dependent upon the exact season, as well as all the other forms of sprays. It should be noted that dormant spraying may be done at almost any time after the plants become dormant in the autumn and until they start growth in the spring; but it is not advisable to attempt to spray during freezing weather, nor too early in the winter, because in the latter event much of the benefits of the spray will be lost through the subsequent winter storms. If dormant spraying is delayed until nearly spring some beneficial results may be expected to extend into the summer, which would otherwise have been lost. Summer spraying, on the contrary, must usually be done at some precise time in order to secure the desired results, though this is not always strictly necessary.