Organic Pest Spray

According to "The Organic Gardener's Handbook of Natural Pest & Disease Control," there are four main organic methods of pest control:
pest removal, barrier creation, biological controls and organic pesticides (sprays and dusts).

Ant Spray
1 T. household ammonia
1 pint of water
spray bottle..Mix all ingredients and it will clean your counter and kill ants.

Diatomaceous earth sprinkled in a line around area or a line of Cinnamon, or a line of toothpaste. Fragrance such as eucalyptus oil or tee tree oil.
Corn Starch sprinkled around the nest will expand the ants intestine and kill them. Boiling water can be poured into the nest mixed with Tee Tree oil.

Which home made insect spray on what insect?

Aphids - Alcohol spray, Nicotine spray, Garlic spray, Tomato Leaf spray, Potato Leaf spray, Hot spray
Mealybugs - Alcohol
Scale - Alcohol, Nicotine (soft/young scale only)
Thrips - Alcohol, Nicotine
Whitefly - Alcohol, garlic, hot
Fungus gnats - Nicotine
Leafhoppers - Nicotine, Garlic
Leaf miners - Nicotine
Earwigs - Garlic
Earworm - Tomato Leaf / Potato Leaf
Spider mite - Hot
Caterpillar - Hot

Avoid spraying during hot sunny weather, spray later in the day to reduce the risk of plants burning or very early in the morning. Always test a small area of a plant prior to spraying the whole plant.

Nicotine spray

  • Boil about 100 cigarette butts in about four liters of water.
  • Cool, then strain the mixture well.
  • Decant to a large marked bottle and store out of reach of children and animals. Remember nicotine is a poison so this homemade nicotine spray should be treated with care.
  • Dilute the mixture with two parts water and put into a plastic plant spray bottle.
  • spray this diluted mixture onto any plants which are infested with leaf miners, caterpillars and weevils.
This mixture is very strong and should only be used with caution and if a serious pest infestation has occurred. The nicotine is dangerous for helpful predator insects too so use sparingly or future infestations could be worse than ever! Never use near plants of the potato/tomato family as they are so closely related to tobacco you could pass on virus diseases to them. If any gets on skin or clothes it should be washed off right away, just like any other poison.
If you have access to fresh tobacco leaf:
Using fresh (not dried) tobacco leaf, chop or shred 2 or 3 ounces leaf per gallon. To make a 3 gallon batch, use a clean 5 gallon plastic pail, and put 6 to 10 ounces (about 1 gallon packed; the exact amounts aren't critical) fresh chopped tobacco leaf in the bottom. Fill slightly more than half way with hot but not boiling water, stirring occasionally. Let it sit covered for 12 hours or overnight.

Orange Peel Spray

Targets soft-bodied bugs suck as aphids, fungus gnats, mealy bugs and will also repel ants.
  • 2 cups boiling water
  • Peelings of on orange
  • A few drops castile soap
Take the boiling water and pour it over the orange peels and allow to sit for 24 hours. Take the mixture and strain it into a container and add the soap. Spray plants completely.

Alcohol spray

The idea of using rubbing alcohol as a spray for plants pests has been around for years. Can cause leaf damage on African Violets, and Apple trees.
Alcohol sprays work on aphids, mealy bugs, scale insects, thrips and whiteflies. Alcohol sprays have been used successfully on houseplants and tropical foliage plants. Most of these have heavy, waxy cuticles that are not easily burned.

How to Make: Use only 70% isopropyl alcohol(rubbing alcohol): mix 1 to 2 cups alcohol per quart of water. Using undiluted alcohol will likely kill your plants, must be diluted.
How to Use: Since alcohol can damage plants always test your spray mix on a few leaves or plants first. Tests results should show up within 2 or 3 days.
Source for Recipe

Garlic Oil Spray

when combined with mineral oil and pure soap,as it is in the recipe that follows, devised at the Henry Doubleday Research Association in England, it becomes an effective insecticide. Some studies also suggest that a garlic oil spray has fungicidal properties.
Protection Offered: Good results, with quick kill, have been noted against aphids, cabbage loopers, earwigs, June bugs, leafhoppers, squash bugs and whiteflies. The spray does not appear to harm adult lady beetles, and some gardeners have found that is does'nt work against the Colorado potato beetles, grape leaf skeletonizers, grasshoppers, red ants, or sow bugs.

How to Make: Soak 3 ounces of finely minced garlic cloves in 2 teaspoons of mineral oil for at least 24 hours. Slowly add 1 pint of water that has 1/4 ounce liquid soap or commercial insecticide soap mixed into it. Stir thoroughly and strain into a glass jar for storage. use at a rate of 1 to 2 Tablespoons of mixture to a pint of water. If this is effective, try a more dilute solution in order to use as little as possible.

How to Use: Spray plants carefully to ensure thorough coverage. To check for possible leaf damage to sensitive ornamentals from the oil and soap in the spray, do a test spray on a few leaces or plants first. If no leaf damage occurs in 2 or 3 days, go ahead and spray more.
Source for Recipe

Hot Garlic/Pepper Mixture

  • 1/2 cup hot peppers of your choice
  • 1/2 cup garlic cloves ( onions will also do )
  • 2 cups water
Take all the ingredients and steep them in a container for 24 hours. Place the container in a sunny spot if possible. After 24 hours, strain the mixture into a spray bottle and spray your plants. Will work on Spider mite &

Tomato Leaf spray / Potato Leaf spray

Both tomato plants and potato plants are members of the nightshade family, which have a toxic, water soluble substance in their foliage. You make this homemade insect spray by soaking 2 cups of chopped tomato leaves, or potato leaves (whichever you prefer or is more readily available) in 2 cups of water for a day, before straining the liquid. Spray both top and bottom of the leaves of your plants for protection.

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