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作 者:冯永丛[1]
出 处:《现代园艺》2013年第10期49-49,共1页contemporary horticulture
摘 要:红黄蜘蛛是柑桔的重要虫害之一,宁南县近年来其发生面积逐渐扩大、猖獗危害日趋严重,重虫区百叶量高达5000头。成螨、若螨、幼螨均以口器刺破叶片、绿色嫩枝的表皮以及果实表皮,吸食汁液,被害叶片呈现许多灰白色针头大小的斑点,失去光泽,叶绿素被破坏.严重时造成大量落叶、落花、落果,或变成畸形果,削弱树势,产量大减,给我县柑桔生产构成很大威胁。red yellow spider is one of the important pests of citrus, NingNaXian its occurrence area gradually expanded in recent years, rampant hazards has become increasingly serious, heavy area shutter amount up to 5000 head. Mite into, if mites and larvae mites in mouthparts Pierce leaves, green shoots of skin, and the fruit, juice, killed blade presents many gray spots, needle size lose luster, chlorophyll was damaged. Serious when caused by a large number of fallen leaves, fallen petal, fruit, or become misshapen fruit, weaken, tree potential yield, constitute a great threat to our county citrus production.
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