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Materials:

§ Mature pandan leaf (Pandanus amaryllifolius)

§ Lemon grass(Cymbopogon marginatus)

§ Strainer

§ Spray bottle

Test Insects

Nymphs or cockroaches

Procedure

· To obtain the leaf crude extract, boil 19.8 grams of pandan leaf for 30 minutes in 800 mL of distilled water.

· Crush the lemongrass and add it to the pandan extract

· Filter this using the strainer and decant into the spray bottle.

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15y ago

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