冬季核桃病害防治--杨远锋的博客

冬季核桃病害防治

[ 2011-7-18 19:46:00 | By: 杨远锋 ]

白粉病

    在冬剪的同时，彻底清洁出间，消灭越冬菌源，合理施肥，适量灌溉，防止树体贪青徒长，减轻病害发生。药剂防治可在发病初期喷布0，3度石硫合剂，或50％甲基托布津可湿性粉剂1000倍液。

    枝枯病

    剪除病枝并烧毁，清除和减少病源，加强栽培管理，增强树势增施有机肥，促使树体健壮，提高抗病力。在冬季做好防冻工作，预防树体受冻，减轻发病，及时预防害虫，避免造成各种伤口，减少病菌侵入机会。另外，当主干或大枝发病时，要及时刮除病斑，可在病部用10％葱油进行涂治。

    腐烂病

    加强综合管理，增加有机月巴料，改良土壤，合理修剪，提高树势，增强抗病力。春季发病高峰时，及时刮除病斑，消毁病树皮及病枝。刮后要在伤口处涂抹福美砷100倍液或5度～10度的石硫合剂。最关键的是，在入冬前一定要对树干进行涂白以预防冻害。

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原创

[ 2016-9-6 17:10:25 | By: 原创(游客) ]

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原创

[ 2016-9-28 16:46:02 | By: 原创(游客) ]

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原创

[ 2016-9-30 11:22:27 | By: 原创(游客) ]

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Re:在漫画中识别身边的违章

[ 2016-10-8 17:29:34 | By: lkzfh(游客) ]

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Re:在漫画中识别身边的违章

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Re:在漫画中识别身边的违章

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Re:在漫画中识别身边的违章

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Re:在漫画中识别身边的违章

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