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柏树(桧柏、龙柏、翠柏、塔柏等)易发生锈病,危害果树叶片、叶柄,新梢及幼果。春夏害梨、苹果等;秋移柏树越冬,次春,冬孢子借风传播,再度危害梨、苹果等。松树的大量松孢子危害果树,以梨受害最重,叶黄
Cypress (cypress, cypress, cypress, tower cypress, etc.) prone to rust, fruit trees, petioles, shoots and young fruit. Spring and summer pear, apple, etc .; autumn shift cypress wintering, the next spring, winter spores spread by air, once again endanger pears, apples and so on. A large number of pine cones damage fruit trees to pear victimization, leaf yellow