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果黑顶病是一种生理性病害，果实顶部变黑干腐及维管束坏死是其典型症状。不同品种抗性不同，红象牙和串抗性最强，桂香最易感病。氟化氢溶液浸果诱导试验及组织分析表明，氟化物是黑顶病的直接诱因。氟化物主要来自果园附近的砖厂、陶瓷厂等。
Black top disease is a physiological disease, the top of the fruit becomes black dry rot and vascular bundle necrosis is a typical symptom. Different varieties of different resistance, the strongest red ivory and string resistance, cinnamon most susceptible to disease. Hydrogen fluoride solution immersion induction test and tissue analysis showed that fluoride is the most direct cause of black-top disease. Fluoride mainly from the orchards near the brick factory, ceramics factory.