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Homemade Bug Spray for Vegetable Plants

Basket of Garden Vegetables image by Karin Lau from

An insect infestation can undo all of the hard work gardeners put into their vegetable plants, but so can spraying them with chemical pesticides. Luckily, there are many natural alternatives to bug control--and just as many homemade bug spray recipes. Most of them consist of some combination of soap, peppers, oil and garlic. Pepper and garlic make your vegetable plants unpalatable to most insects, the oil smothers slow-moving bugs and the soap helps the spray stick to the plants.

Place the onion, garlic and jalapeno into the food processor and process the mixture until it develops a salsa-like texture.

Dump the contents out into a glass bowl (you'll have trouble getting the smell out of a plastic one). Add 1 qt. of warm water to the mixture, mix it well with a spoon and let it cure for two hours.

Strain the liquid through a sieve and into another container. Press the mash against the edges of the sieve to strain as much liquid as possible. Discard the solid matter.

Pour the contents of the container into a gallon jug. Fill it the rest of the way full with water and shake well.

Pour the homemade bug spray into your spray bottle.

Spray your vegetable plants early in the morning or late in the afternoon. Evenly coat all of your vegetable plants' tissue until just before the point of runoff.

Re-apply the spray every time it rains.

Homemade Bug Spray For House Plants

There are bugs on your peace lily and schefflera. Your new puppy likes to chew on the plants, so you don't want to take a chance of hurting him by using a chemical pesticide. In a container with a lid, pour 1 quart of water and add 1 tsp. Put the lid on the container and shake it to mix the ingredients well. Pour the homemade bug spray into a clean spray bottle. Spray the bugs on the house plant. The spray paralyzes and suffocates the insects. Repeat every few days to prevent a re-infestation. If you don't mind the smell, a spray can be made with garlic or hot pepper. Put this mixture into a blender and puree it. Strain the mixture through cheesecloth or coffee filter. Repeat the spray every few days.


Thoroughly wash your vegetables before consuming them. An insect infestation is often a sign that your vegetable plants aren't being properly cared for.

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