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果树病害
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果树病害 我国地域辽阔,气候条件复杂,各地栽培的 果树种类繁多,果树病害种类和发生规律各 异。 果树有 苹果、梨、柑橘、葡萄、桃、李、杨 梅、板栗、柿子和枇杷 等。 每种果树均可发生几十种病害。病害危害不 仅影响水果产量和品质,还影响果品的出口 外销。
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