枸杞应防治哪些病虫害

2025-03-29 10:08:36
推荐回答(2个)
回答1:

黑果病。为害嫩枝、叶、蕾、花、青果等。始发期5月中旬至6月上旬。防治方法:结合冬季剪枝,清陈树士的黑果、病枝及落叶落果烧毁或深埋;发病期喷1 : 1 : 120倍波尔多液或50% 可湿性退菌特1000倍液,每隔5-7天喷1次,连续3-4次。a. 白粉病。为害叶片,一般发生在多雨季节。防治方法: 45%硫黄胶悬剂200-300倍液喷雾,每亩用量30-35毫升;50% 退菌特600-800倍液喷雾,每隔10天喷1次,连续2-3次。b. 虫害。主要有负泥虫、实蝇、蚜虫等,为害叶片与果实, 4-9月均可发生。防治方法:随时摘除虫果,集中烧埋;7-8月 用40%乐果乳剂1500倍液或50%敌敌畏乳剂1000倍液喷雾,每 7-10天1次,连续3次。
希望我的回答会帮到您。

回答2:

枸杞新梢长出时,常发生像金花虫样的甲虫为害,咬食新叶并拉虫屎,严重影响大叶枸杞的生长,春季宜在枸杞刚萌芽时,即喷洒杀虫药,隔10天喷1次,连续喷3~4次,严防害虫在芽梢上产卵。

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