| 查看: 401 | 回复: 3 | |||
| 当前只显示满足指定条件的回帖，点击这里查看本话题的所有回帖 | |||
leiking木虫 (正式写手)
中医药
|
[交流]
【Share】A Possible Safe New Way to Kill Mosquitoes That Spread Malaria
|
||
|
Israeli researchers say they have developed a substance that attracts and kills mosquitoes infected with the malaria parasite. However, the sweet smelling substance is said to be harmless to people and animals. Scientists at Hebrew University in Jerusalem developed the sugary bait by combining fruit juice oils and boric acid. The fruit juice gets the attention of the mosquitoes. Boric acid kills the insects when they eat it. The scientists took the boric acid sweet bait to the West African nation of Mali. They sprayed it on plants near man-made ponds. Villagers use water from the ponds during the dry season. But the area is also home to Anopheles gambiae, the mosquito that carries the most deadly form of malaria. The researchers also placed a sweet-smelling spray on grasses near other ponds. But that spray contained no boric acid. Both substances also contained a substance that would mark any mosquito that came in contact with it. This way the scientists could count the mosquitoes that fed on the bait. Yosef Schlein is an expert on insects that affect human health. Professor Schlein led the sweet bait research. He says thirty-eight days of results show the sweet boric acid bait proved very effective at killing mosquitoes. YOSEF SCHLEIN:" In Mali, we got down by some eighty percent, the females, and ninety percent of the males. But the area is full of little ponds in there, so it is impossible to stop mosquitoes from flying from an untreated pond to a treated pond." |
回复此楼» 猜你喜欢
270求调剂
已经有5人回复
-
347求调剂
已经有3人回复
-
280求调剂
已经有9人回复
-
药学305求调剂
已经有5人回复
-
材料考研调剂
已经有18人回复
-
085501机械专硕 302分 不挑专业求调剂
已经有6人回复
-
085404 293求调剂
已经有8人回复
-
327求调剂
已经有4人回复
-
312求调剂
已经有5人回复
-
262求调剂
已经有14人回复
lppv
荣誉版主 (文坛精英)
无与伦比俱乐部部长
- ESEPI: 42
- 应助: 5 (幼儿园)
- 贵宾: 2.158
- 金币: 9455.2
- 散金: 21883
- 红花: 262
- 沙发: 257
- 帖子: 29946
- 在线: 3646.7小时
- 虫号: 937152
- 注册: 2010-01-05
- 性别: MM
- 专业: 无机合成和制备化学
- 管辖: English Cafe
4楼2011-02-25 13:13:41
