As you embark on your own aquaponic venture it is important to learn how you will control or prevent plants pest infestation to save yourself from spending so much time, money and pain.

plant pests

You do not have to spend a lot for organic products. It is surprising, even relieving, to know that a lot of your kitchen leftovers can be used in creating your own, homemade organic pest controls. Below are some products you can make out of your kitchen supplies.

Non-chemical pesticides to keep aphids, insects, and pests off your plants:

Soapy Water

Try to find one that’s based on caustic potash, rather than caustic soda. Mix this with water until frothy.

Bug Spray

You can make an organic bug spray by using onion skins, peels, and ends. Keep your onion leftovers in an airtight container and refrigerate until your container’s full. Once you have enough, place the onion pieces in a pail full of warm water. Leave the mixture for a couple of days, for a max of 1 week. After a week, strain out the onion bits and store the onion water in spray bottles.

How to use: Just spray both house and garden plants with the water to fights pests and aphids.

Garlic Spray

Chop garlics and cover with mineral oil. Let it soak overnight, strain, and add a liter of soapy water and store in a sealed glass jar. Dilute one part of garlic to 50 parts of water and use for spraying.

Oil Sprays

Oil sprays suffocate insects. Mix 1kg of soap with 8L of oil, stirring to boil and until dissolved. Dilute this solution with water just before using. Use this only on cool days.

Tomato Leaf Spray

Mix tomato leaves with water and bring to a boil. Strain out the leaves and let the mixture cool down. Use immediately as spray.

Chili Spray

Mix equal volumes of chili and water, blended and spray on caterpillars.

Aluminum Foils

Wrap aluminum foil around base of plants like tomatoes. The reflection from the foil confuses the insects and drives them away.

Molasses Spray

Molasses is a good deterrent sticky spray, ideal for cabbage moths and grubs on the Brassicas. Mix 1 tablespoon of molasses with 1 liter of hot water until well blended. Mix in one teaspoon of detergent. This will help the molasses to stick to the leaves. Spray top and under the leaves.

Vinegar Spray

For cabbage moths and grubs on the Brassicas. Blend ¼ vinegar with ¾ water, then mix 1 teaspoon of detergent. Spray top and under the leaves.


Scales shoot a sweet substance called honeydew, which ants feed onto. Ants will pick them up and move them all over the tree. Honeydew also leads to sooty mold, a black dusty fungus that grows over the stems and trees. Controlling the scale will prevent the sooty mold.

Using vegetable oil-soap mixture can help in preventing scales. Make the oil spray by mixing two cups of vegetable oil with one cup of pure liquid soap. Dilute one tablespoon of the solution to one liter of water and spray to the affected areas.

Note that since the solution is oil-based, using this is advisable during cold weathers. Using this during hot season may cause the plant’s leaves to burn.


Milk Spray

Mix equal portion of milk and water and use as spray. The mixture reportedly controls black spots on roses and fungal diseases on other plants.

Washing Soda

Dissolve 110g of washing soda in 5.5L of water. Add 55g of soap and use immediately as spray.