Linda,
In a "Tip", Goldfinch suggested
very dilute Windex for getting rid of gnats:
"A great way to get rid of gnats on your houseplants is to mix 32 ounces of water with one squirt of Windex. Water your plants by making sure the entire soil surface is wet. It's not necessary to saturate the soil."
http://garden.org/ideas/view/g...
This was the best list I could find of Windex's ingredients. Apparently there is much more rubbing alcohol than ammonia! But it may be the detergents that deter gnats. Or maybe it's the fragrance!
http://www.whatsinsidescjohnso...
Ingredients
Water
Isopropyl Alcohol (Carrier) <-- <-- rubbing alcohol
2-Hexoxyethanol (Cleaning Agent)
Videt EGM (Cleaning Agent)
Sodium C14-17 Sec-Alkyl Sulfonate (Wetting Agent)
Ammonium Hydroxide (Cleaning Agent) <-- <-- <-- Ammonia
Propylene Glycol (Carrier)
Mirapol® Surf S-210 (Cleaning Agent)
Fragrance
