What makes an onion a good repellant for cockroaches??..what does it contain??..?

Question

What makes an onion a good repellant for cockroaches??..what does it contain??..?

Answer 1

Onions are most certainly NOT a good repellant for cockroaches...they love both them and potatoes!

This bit from an article at:

www.ipm.uiuc.edu/hyg/insects/german_co...

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"...German Cockroaches - Blattella germanica

The German cockroach is the most common cockroach found in homes, apartments, restaurants, supermarkets, hospitals and other buildings where food is stored, prepared or served. They eat food of all kinds and may hitchhike into the home on egg cartons, soft drink cartons, sacks of potatoes or onions, used furniture, beer cases, etc...."

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Onion is used in home made roach BAIT...to attract roaches to traps...not to repell them.

Answer 2

it doesnt, get a lizard  let him run around

Answer 3

I doubt that onions will repel cockroaches.  Most likely you'll just be providing them a nice snack.

Answer 4

borax acid