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Dr. K.Kwong, PhD in Chemistry, teaches you how to kill bed bugs, cockroaches ...

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發表於 2023-11-20 15:14:01 | 顯示全部樓層 |閱讀模式
Dr. K.Kwong, PhD in Chemistry, teaches you how to kill bed bugs, cockroaches and ants
Boric acid can be purchased at pharmacies or hardware stores for about HK$3/box.
To use, add water, no ratio specified.
Or mix boric acid with sugar at a ratio of 1:1 to turn it into a bait-type insecticide. In addition to bed bugs, it can also kill cockroaches and ants.

Note: Boric acid is poisonous. Exposure to small amounts is not a big problem, but it is best not to inhale. Therefore, wear a mask when spraying the solution, as the particles can enter the lungs when they dry.
/11 2023

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