Organic Pesticides You Can Make From Your Backyard Plants

Organic Pesticides You Can Make From Your Backyard Plants

Gardening brings joy to many people as nurturing the thriving floras can be relaxing and watching them grow is another kind of satisfaction. However, there are some common problems that we may face in gardening like pests, fungus, and some unwanted weeds. Those little problems may cause bigger troubles if they are not handled correctly, even they can kill all your plants.

Some people may handle such problems using pesticides containing chemical compounds, but the use of chemical compounds may bring harm to the environment and the residue may stay longer than expected and bring further harm to the nature. Not only that, the chemicals in the pesticides can also affect your health if you consume the garden products like fruit or vegetables that you’ve planted. So, how to control the annoying unwanted invaders with minimum risk to both the nature and yourself?

The answer for that question is using organic pesticides. There are many plants which are believed to have the ability to repel, or event get rid of, pests that may harm the plants in your garden. The interesting fact is, some of your backyard plants actually can actually make good organic pesticides. Want to know what are they? Here is a list of organic pesticides that you can make from your backyard plants.

Garlic and Onion

Garlic growing (Wikimedia Commons)
Garlic growing (Wikimedia Commons)

Do you plant garlic and/or onion in your backyard garden? Well, then you have planted a good pesticide ingredient for the rest of your backyard. Its infamously strong smell is the weapon that you can use to fight the plant-consuming slugs, snails, insects and caterpillars in your garden. But how to make this organic pesticide?

Firstly, blend in a blender at least one whole bulb of garlic or onion with a little amount of water. You can also mince it and put them in a small cup of water. Then let the mixture sit for one night and strain it into a small bottle. You can also optionally add ½ part of vegetable oil into this mixture. This will be your pesticide concentrate that you can use for several uses and can be stored in your refrigerator up until one week.

To apply it, mix the concentrate with water in a spray bottle in a ratio of 1:4, one part of concentrate can be mixed with four parts of water. Spray the organic pesticide on infested plants to get rid of annoying pests and just wait for them to run away from your lovely garden.

Chili Pepper

chili pepper (
chili pepper

This kind of spice can also be used as an insect repellent for your garden. Not only it has a strong aroma like garlic and onion that the pests are sensitive to, this spice also has a burning taste from its capsaicin that will help you further in getting rid of the annoying little creatures. You can use fresh chili pepper or powder to make this organic pesticide.

To make a pesticide from chili pepper, follow these steps: Firstly, blend in a blender a handful of fresh chili pepper or a tablespoon of chili powder with a cup of water. Secondly, pour the mixture into a bowl of water and boil it on the stove. Let it sit for a night and then strain it before storing it into a bottle.

To apply it, simply just pour it into a spray bottle and then spray it on invested plants. Remember to shake it well before pouring into the spray bottle to make sure it is mixed well. Also remember to wear protection when handling it and spray it away from eyes, nose, and mouth since it can make you feel the burn as well.

Chrysanthemum Flower

Chrysanthemum white at lalbagh (Wikimedia Commons)
Chrysanthemum white at lalbagh (Wikimedia Commons)

Do you know this beautiful flower in your backyard is a good pesticide as well? Well now you know it, and you can use it to save the rest of your garden from invaders. The reason why chrysanthemum makes a good pesticide is because of its chemical component named pyrethrum found in its flower part. This component can affect the nervous system of insects that will render them immobile.

To make an insecticide from this beautiful flower, firstly you have to dry about 100 grams of chrysanthemum flower in the sunlight. Secondly, boil the dried flower into 1 liter of water for about 20 minutes. After that, let it cool and strain the solid components before pouring it into a bottle.

This insecticide may look harmless to us and more like a tea that you can consume, but for the insects in your garden this tea brings another kind of horror story. This “insec-tea-cide” can be stored for up to two months (for insecticide purpose only of course, not for human consumption purpose), so whenever you feel like your garden is invaded by small insects you already have the weapon to counter them. To apply it on your plants, simply just spray it around your garden.

Tomato Leaf

Tomato scanned (Wikimedia Commons)
Tomato scanned (Wikimedia Commons)

Another insecticide that you can find in your backyard is tomato leaf. Yes, that tomato leaf contains alkaloid named tomatine which is harmful to some aphids. This is the reason why aphids never attacked tomatoes, because this plant is their archenemy.

To make this insecticide, simply chop two cups of tomato leaves and pour it into one quart of water. Let it sit overnight and then strain the leaf. To apply it, spray the water into invested leaves to get rid of the annoying aphids.

Note: Apply It Wisely

Young boy gardening outdor (

Those are some natural and organic pesticides which can be simply made from one of your backyard plants. Actually, there are several more organic pesticides that you can make from other plants or organic compounds that you can find around your home such as neem oil for garden insects, salt for slugs and snails, nicotine spray made from tobacco, and some others.

PS : has wrote 28 ways to use Neem Oil for Plants and Garden. It is Worth to read

Before you apply any kind of pesticide to your garden, always remember that pesticides always have the potential to alter the ecosystem. So, before you apply any kind of pesticide, make sure that you really need it and choose the least harmful but the most effective ones for the ecosystem of your garden.

However, using those organic pesticides is considered friendlier to the nature than chemically produced hard pesticides since they are made from nature and goes into the nature. For more information of the organic pesticides, feel free to visit our sources in and or search online about such information. So, are you interested in making your own organic pesticides rather than buying those harmful chemicals for your garden?

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