warning: post ni dalam english. ampun ye.
Yesterday night, a friend of mine went on a cockroach (!) tour at the Science Museum. Being superbly sick as I am, I was unable to join him. Teasing him about fnding ridsect andsoforth reminded me of a mini project I made my students do during my year as a lecturer.
The title of the mini project is Homemade Pesticide (oh, fyi, the course was Chemicals in Agriculture). So what they have to do is try to find something (household items, etc) that can be made into pesticides.
Basically my students did a wonderful job. Even my beloved big boss (a.k.a the dean) loved the project so much. And this mini project truly helped them during their final exam, i kid you not. So hereby I assert that rather than emphasizing on theories and lectures, focusing more on hands on and practical works are so much better in guiding students to achieve the course outcome. :D (psst: that class achieve a beautiful bell graph for their marks)
Okay back to the topic. There are numerous items that you can turn into pesticides in your homes. Though we have to purify it at some point (which my students didn't do), and we have to test the potency of each substances (they didn't have time for it), their tests showed that most of them works. Though some smelled really bad, I think the insects will run away based on the smell itself. :p
1) capsaicin (pepper/cili)
2) lemongrass (serai wangi)
3) Garlic (bawang putih)
There are a few more (ginger, dioscorine, salt), but I'm running short of time. So in conclusion, there are many simple solutions for insect repellent, some of it are easily obtained. Do try them out, and let me know if it works. And to Mr Cockroach, beware!!!
Love from London,
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