In addition to causing discomfort, female mosquitoes introduce disease-carrying viruses and bacteria into the bloodstream of their victims. There are numerous publications describing the uses of sugary mosquito baits ...In addition to causing discomfort, female mosquitoes introduce disease-carrying viruses and bacteria into the bloodstream of their victims. There are numerous publications describing the uses of sugary mosquito baits with promising results. Without temperature control measures however, these methods are mainly useful for only nectar-feeding insects, including male mosquitoes, because the warmth of the blood is a condition for the females to locate their meals. The efforts required to keep the baits fresh against the natural spoiling process make them less attractive or impractical to implement. These experiments address these issues by using warm baits of water, sugar, boric acid, and antibiotics. Overnight, the general areas became clear of blood-sucking female mosquitoes while in numbers, the harmless males concentrated into the immediate vicinities. Control vs. experiment protocol established no other logical explanation for this phenomenon other than that females were attracted and killed by the bait. As expected, there was no female mosquito’s activity in these areas. There weren’t many left to do the work.展开更多
目的探讨不同浓度葡萄糖溶液对白纹伊蚊和淡色库蚊的蚊幼存活率,以及诱蚊、诱卵效果的影响,为基于糖饵剂的灭蚊技术研发提供支持。方法取白瓷碗分别加入100 mL 3%、5%、8%、10%和15%的葡萄糖溶液,每碗投放10只白纹伊蚊或淡色库蚊Ⅳ龄蚊...目的探讨不同浓度葡萄糖溶液对白纹伊蚊和淡色库蚊的蚊幼存活率,以及诱蚊、诱卵效果的影响,为基于糖饵剂的灭蚊技术研发提供支持。方法取白瓷碗分别加入100 mL 3%、5%、8%、10%和15%的葡萄糖溶液,每碗投放10只白纹伊蚊或淡色库蚊Ⅳ龄蚊幼,第2、4、6、24、48、72 h观察蚊幼存活情况。饲养笼内投放饱血白纹伊蚊和淡色库蚊雌蚊各50只,四角各放置盛有5%、8%和15%葡萄糖溶液的产卵杯各1个,观察72 h总产卵数。在模拟房内投放饱血和饥饿白纹伊蚊、淡色库蚊雌蚊各100只,盛有5%和8%浓度葡萄糖溶液和粘虫板制成的黑色简易灭蚊桶各1个,观察6 d后成蚊数和蚊卵数。以上试验均重复3次,以去氯自来水为对照。结果随着葡萄糖溶液浓度增加,白纹伊蚊和淡色库蚊蚊幼的72 h矫正死亡率升高,高于5%的葡萄糖溶液不适宜蚊幼存活。诱卵结果显示,随着葡萄糖溶液浓度增加,对白蚊伊蚊诱卵效果下降;5%和8%葡萄糖溶液组诱卵效果相似,白纹伊蚊卵平均数分别为686.67枚和682.33枚,淡色库蚊卵筏平均数分别为3.00块和2.33块。模拟房内,对照组、5%和8%葡萄糖溶液组诱捕成蚊平均数分别为93.33、105.00和130.33只,8%葡萄糖溶液组诱蚊效果强于对照组(F=3.283,P=0.030);白纹伊蚊蚊卵平均数(蚊卵数+蚊幼数)分别为70.33、55.33和63.00只,差异有统计学意义(H=6.761,P=0.034)。结论5%及以上浓度的葡萄糖溶液可有效抑制白纹伊蚊和淡色库蚊蚊幼存活,且具备较好的诱蚊效果及一定的诱卵效果。展开更多
文摘In addition to causing discomfort, female mosquitoes introduce disease-carrying viruses and bacteria into the bloodstream of their victims. There are numerous publications describing the uses of sugary mosquito baits with promising results. Without temperature control measures however, these methods are mainly useful for only nectar-feeding insects, including male mosquitoes, because the warmth of the blood is a condition for the females to locate their meals. The efforts required to keep the baits fresh against the natural spoiling process make them less attractive or impractical to implement. These experiments address these issues by using warm baits of water, sugar, boric acid, and antibiotics. Overnight, the general areas became clear of blood-sucking female mosquitoes while in numbers, the harmless males concentrated into the immediate vicinities. Control vs. experiment protocol established no other logical explanation for this phenomenon other than that females were attracted and killed by the bait. As expected, there was no female mosquito’s activity in these areas. There weren’t many left to do the work.
