Rubbing alcohol is best known for its efficiency in killing spider mites, aphids, and whiteflies. Make a spray solution of 1:8 ratio of rubbing alcohol and water. First, run a patch test on a small leaf. Once it passes the test, you can spray the plant, leave it on for 15-20 minutes, and rinse with water.
Apply a small solution of rubbing alcohol on a plant's leaves, then wait at least a day. Alcohol acts as a desiccant, so you may find burn marks, curled or withered leaves, or other negative reactions. If your plants seem unharmed by spraying alcohol for pest control, use in moderation.
To make the spray, mix 1/2 to 1 cup of rubbing alcohol with 1 quart of water in a pump-spray bottle. It's a good idea to test spray one leaf of an infested plant and wait a day to check for damage. If the plant is unaffected, spray the whole plant. Treat at 3-day intervals for 10 days or as needed.
Rubbing Alcohol Solution: Mix 1 cup rubbing alcohol with 1 quart of water, pour into spray bottle. Spritz and treat every three days for two weeks. Make sure to test a leaf first to check the mix isn't too harsh for it.
Use rubbing alcohol.
This liquid will dehydrate and kill spider mites. A couple of hours later, use a garden hose to cast off the dead mites. If your plants are sensitive, you might want to dilute your rubbing alcohol.
You may also want to try mixing a combination of equal parts water and rubbing alcohol in a spray bottle. Mist this on your carpets, curtains, bedding, and upholstery to kill the dust mites. Make sure the room is well ventilated until the alcohol evaporates.
Using 70% isopropyl alcohol is an effective way to get rid of spider mites. Simply spray your plant down with the alcohol and the spider mites will die off. This method should be repeated every other day until you no longer see any signs of spider mites.
Alcohol will help kill fruit flies and pesky gnats. Attack these pesky insects by spraying them with rubbing alcohol. Be sure your room is well ventilated when you do so.
Dish soap does not directly kill gnats on its own. Liquids like vinegar need surfactants like dish soap to break their surface tension and drown insects. Due to the fruity scent of this gnat solution, it lures the gnats and causes them to get stuck and die in the solution because of the dish soap.
Isopropyl alcohol, also known as the bed bug killer, kills the bed bugs and insects by dissolving their cells. The alcohol gets into the insects' organs and pretty much disintegrates them as their skin is quite sensitive to alcohol.
Dawn dish soap can save your plants from pest infestation, but it can damage them as well — this may sound contradictory, but it's true! Too much of it dissolved in water can burn the leaves of your sensitive plants. If you want to make this work, do these things: For a gallon of water, 1 teaspoon of it is fine.
No – isopropyl alcohol and rubbing alcohol are not the same thing. Isopropyl alcohol is pure alcohol and is a colorless liquid with a musty, sharp odor. There are no other ingredients in a bottle of isopropyl alcohol. By contrast, rubbing alcohol contains isopropyl alcohol among other ingredients, such as water.
Can Too Much Rubbing Alcohol Hurt the Plant? Yes, too much rubbing alcohol can hurt or kill a plant. It is best to apply rubbing alcohol as a spot treatment using a cotton swab or dilute the alcohol with water before applying it to the plant.
Try this mixture to control aphids, whiteflies, and even destructive beetles: 2 parts rubbing alcohol, 5 parts water, and 1 tablespoon liquid soap. Spray the mixture on the foliage of garden plants that are susceptible to these pests.
Coffee grounds repel pests. Most pests do not like the smell of coffee, so they will stay away- Fungus Gnat is no different. If your coffee grounds are not repelling them, you're not doing it right. One thing you would have to do is to avoid spreading the coffee grounds on the face of your potting soil.
Hydrogen peroxide is a quick and effective way to get rid of larvae, killing them on contact. Mix four parts water with one part hydrogen peroxide and soak your soil with the solution. Neem oil can also be diluted with water and applied to the soil to kill larvae.
Cinnamon is a powerful natural fungicide, which kills off the gnats' primary food source, therefore making the soil inhospitable. You can also use a cinnamon stick, just pop it straight into the soil. You can grab either cinnamon sticks or powder next time you're doing your supermarket shop.
For a slight pest problem, mix 1 cup of rubbing alcohol with 1 quart of water. For severe pest issues, increase the mixture to 2 cups of rubbing alcohol and 1 quart of water. Pour this mixture into a spray bottle.
Homemade gnat killer spray: A mixture of half a cup of water, half a cup of isopropyl alcohol, and a teaspoon of dish liquid can be filled in a spray bottle.
Hydrogen Peroxide
A peroxide solution apparently kills larvae and eggs on contact, effectively killing off all infant gnats and disrupting the lifecycle. You should be able to buy hydrogen peroxide from any high street pharmacy or online. Mix 1 part 9% hydrogen peroxide with 6 parts water.
Peppermint, neem, and rosemary are all toxic to spider mites but safe for humans. Mix 1 tablespoon liquid peppermint soap, 1 teaspoon neem oil, and 1 teaspoon rosemary essential oil in a spray bottle filled with water. Spray the leaves of your infected plants once a day until the infestation is gone.
Indoor plants and greenhouses can have problems with spider mites. But cinnamon kills spider mites and stops them from spreading on your house plants and in your greenhouse. Sprinkle cinnamon on the soil surface around plants and on the leaves of plants using a light touch.
SPIDER MITES: Isolate the plant. Use undiluted rubbing alcohol for best results, or for sensitive plants (test first), mix 1 part rubbing alcohol to 3 parts water, and wipe leaves (top and bottom), with mixture. For best results follow-up with the diluted mixture in a spray bottle, applied to foliage, top and bottom.