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吡虫啉防治茶小绿叶蝉的试验

2021-02-21 12:05:34热度:166°C

吡虫啉对树小绿叶蝉类有特效。在若虫高峰组,每公顷用10%可湿性粉剂525-750克,对水1500公斤喷雾,药后3天防效93.7%以上,15天内防效维持在92.9%以上,持效期长达40天。具速效和持效期长的特点。茶叶销量排名湘益茶叶

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