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社评“cekc18BN冎eo”-知识课堂

广东疾控:冬季cekc18BN冎eo是防蚊灭蚊的最佳时期

来源: 中国财经信息网
2024-12-19 18:00:36

最佳回答

“cekc18BN冎eo”广东疾控:冬季cekc18BN冎eo是防蚊灭蚊的最佳时期

  中新cekc18BN冎eo网广州12月19日电 (记cekc18BN冎eo者 蔡敏婕)随着气温下降,身边的蚊子逐渐变少,但实际上蚊子从未消失,只是进入了“冬眠”状态,此时的蚊子就是“越冬蚊”。

  广东疾控18日表示,杀灭越冬蚊虫,可以低成本、高效率减少明年春季蚊虫基数,显著降低夏季高峰期蚊虫密度,达到事半功倍的效果。

  广东疾控专家表示,冬季的蚊虫活动能力弱、抵御能力差、聚集范围集中,是防蚊灭蚊的最佳时期,消灭一只“越冬蚊”相当于消灭千只“蚊二代”。

  广东省居民区常见的蚊虫主要有白纹伊蚊、致倦库蚊等。广东白纹伊蚊主要以卵越冬,少数以幼虫或成蚊越冬,它们的卵和幼虫主要藏匿在各种小容器积水中。

  致倦库蚊主要以成蚊形态越冬,一般隐匿在地下室、防空洞、仓库、花房、管道、墙缝、衣柜、楼道、阴沟、床底、下水道等温暖潮湿的地方。

  如何消灭越冬蚊呢?广东疾控专家表示,首先要翻盆倒罐定期清理积水,检查家中、阳台、楼道、房屋周围以及小区的积水容器,及时清理积水、疏通下水道、清除废弃容器、杂物和垃圾;要科学种养水生植物,建议采用防蚊篮花瓶或用沙石种养水生植物,如果用一般的花瓶种养,应每3天至5天检查一次,发现有蚊虫(幼虫或蛹)孳生应立即换水,并彻底洗刷容器内壁并冲洗植物根部。有蚊幼或卵的水须倒入便池冲走。

  处理难以清除的积水,可以在积水中倒入少量废机油,形成一层油膜,或直接在水体表面均匀投入苏云金杆菌以色列变种(Bti)颗粒剂或乳剂,用量为每平方米水体1克至2克。

  在杀灭越冬成蚊方面,在家中可重点翻找家中不常移动的物品,用手拍打,或使用电蚊拍等工具杀灭藏匿在各处的成蚊;在地下室、地下车库、楼道等场所,可以采用滞留喷洒的方式杀灭越冬成蚊。

  广东疾控专家表示,通过这些措施,可以有效降低越冬蚊的数量,推迟明年春夏季蚊虫高峰期的到来,提早预防和减少登革热等媒介传染病的传播和流行风险。(完)

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