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长期以来人们一直认为印楝(neem)树的产物对昆虫具有使拒食和驱避作用。本项实验对印楝油的驱蚊作用进行了现场测试。
It has long been believed that the product of neem trees is an antifeedant and repellent to insects. This experiment conducted a field test on the mosquito repellent effect of neem oil.