乐果农药发展前景怎么样
氧乐果属于酸性农药。
氧乐果遇碱易分解，在中性和偏酸性溶液中较稳定。是一种高毒、高效、广谱的有机磷类杀虫杀螨剂。对害虫有快速的击倒力，有很强的内吸、触杀和一定的胃毒作用，对人畜剧毒。
氧化乐果是一种理想的根茎内吸性杀螨剂和杀虫剂，特别适用于防治刺吸式害虫。对拟除虫菊酯的抗性。
2、乐果浓度高了会对果树有伤害么？乐果是有机磷杀虫剂，属于高毒限制使用农药，在果树和蔬菜上禁止使用，具有触杀、胃毒、内吸和熏蒸作用，在可以使用作物上使用必须达到安全间隔期，安全间隔期是30天。如果乐果浓度高了，会对果树造成药害，会出现烧叶现象，叶片变红锈色。所以乐果浓度高了会对果树有伤害。
3、农药“乐果”什么时间喷在花上刹虫效果好？一定要避开花期，早上十点以前，下午四点以后，药效发挥的最好
4、什么是乐果？常用农药。
别名：乐戈；O，O-二甲基-S-（N-甲基氨基甲酰甲基）二硫代磷酸酯。《乐果》纯品为白色针状结晶，在水中溶解度为39克/升（室温）。易被植物吸收并输导至全株。在酸性溶液中较稳定，在碱性溶液中迅速水解，故不能与碱性农药混用。在有机磷内吸杀虫剂中用途较广、产量较大的品种之一。
化学名O，O-二甲基-S-（N-甲基氨基甲酰甲基）二硫代磷酸酯。
乐果是内吸性有机磷杀虫、杀螨剂。杀虫范围广，对害虫和螨类有强烈的触杀和一定的胃毒作用。在昆虫体内能氧化成活性更高的氧乐果，其作用机制是抑制昆虫体内的乙酰胆碱脂酶，阻碍神经传导而导致死亡。
适用范围适用于防治多种作物上的刺吸式口器害虫，如蚜虫、叶蝉、粉虱、潜叶性害虫及某些蚧类有良好的防治效果，对螨也有一定的防效。
5、氧化乐果可以喷在小豆上吗？不可以
大豆田防治害虫不可以使用氧乐果。氧化乐果是禁用农药,一旦发现一定要严惩!。大豆田防治害虫不能使用氧化乐果。氧乐果用作豆果类,建议少用或不用,因毒性恶不易休药期。氧化乐果是高度农药,不可在大豆上使用。氧化乐果已全面禁止生产和使用。氧化乐果被国家列入禁止使用农药,大豆田不可以使用
拓展好文：农药行业前景怎么样？(农药企业现状与前景)
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热门作者: 农业播报侠 种子小百科 农产新干线 农情领航灯 绿色农业防治通 种植乐趣圈