Whether you’re a professional farmer or a backyard gardener, you will come across destructive insects and bugs on your plants.
However, there are many solutions available for getting rid of these common plant pests. These range from organic store-bought pesticides to things you probably already have in your home.
So, what are the best home remedies and organic methods to stop insects from eating your plants?
Here’s how to get rid of bugs on plants naturally:
1. Beneficial Insects
While many bugs fall under the pest category, some are helpers, feeding on bad insects and related pests.
Therefore, having ladybugs, braconid wasps, praying mantises, dragonflies, minute pirate bugs, and other beneficial garden insects around will reduce damage to your garden and help ensure healthy crops.
Moreover, you can also buy most of these insects.
2. Companion Planting
Companion planting is an organic method of controlling pests. And it isn’t just limited to flowers either — you can plant vegetables and herbs such as onions and sage.
3. Diatomaceous Earth
Diatomaceous earth is a great home remedy for pest control. Use it to get rid of crawling, leaf-eating insects. When the powder gets inside the exoskeleton of the critters, it sucks the moisture out of them.
Liberally sprinkle DE powder on and around your plants for an effective killing shield against many pest problems. You can also apply it to potting soil or vegetable garden soil before planting.
Alternatively, make a homemade pesticide for plants by combining 5 tablespoons of DE with a gallon of water. Shake well and use it to spray your outdoor and indoor plants.
This homemade liquid insecticide will kill insects when it dries out. Moreover, DE is safe for humans to handle but must be reapplied after a rainstorm.
4. Soap and Water
Combine soap and water for a simple home remedy to stop insects from eating plant leaves. Soapy water works against a wide variety of pests.
Mix 5 tablespoons of organic liquid soap with a gallon of water to make a plant-friendly bug spray for indoor and outdoor plants. This solution will kill most bugs.
5. Neem Oil
Neem oil is a superb natural insect repellent for plants. Moreover, it is the number one go-to pest control remedy for organic gardeners.
It is highly effective as a repellent for squash bugs, cucumber beetles, Japanese beetles, aphids, and more.
A basic neem oil insecticide recipe is to mix 4 teaspoons of neem oil with 2 teaspoons of liquid soap and a gallon of water. Shake well and spray the insecticidal solution on plants.
You can also purchase the ready-to-use concentrate and apply it according to the instructions on the bottle.
Now watch the insects run for cover as their hormones are thrown completely out of whack.
6. Beneficial Nematodes
This is a very powerful method to get rid of root-eating bugs and insects. Beneficial nematodes seek out soil-dwelling pests and larvae and devour them.
Buy online and apply according to the package instructions. It works against Japanese beetle grubs, cutworms, flea beetles, ants, vine weevils, and many others.
There are many kinds of traps for garden pests, some of which don’t harm them at all.
7. Sticky Trap
8. Grapefruit Halves
Your morning breakfast can become a trap for certain garden pests.
Once you’ve eaten the fruit, use the rind as bait to attract snails and slugs, and watch them slowly march nearby.
You can also cut a grapefruit in half and scoop out the inside. Once that’s done, place the empty shell near the affected plants in the late afternoon.
Slugs and snails will crawl right in to take cover. Finally, scoop them out the next morning and squish them or feed them to the birds.
9. Beer Container
To prevent snails and slugs from noshing on your plants, set out a little dish of beer to attract them.
The slimy little guys like the stuff.
The smell coming from the dish will lure them in and drown them. Afterward, scoop them out and dispose of them.
Essential Oils for Pest Control
You can also use essential oils to make a homemade spray to keep bugs off plants. Yes, some essential oils are effective at repelling certain garden pests.
The basic application is 10–15 drops of oil to a cup of water. Place the solution in a spray bottle and apply it to the affected areas.
However, be careful when using, as some oils can also repel insects that are useful to a garden.
This one is famous for its pleasant aroma and its ability to keep out certain critters such as the mealybug , beetles, flies, rodents, caterpillars, and ants.
Easier to use than it is to say, some chrysanthemum flowers contain pyrethrins, which can be used as a natural bug killer.
Chrysanthemum oil is especially useful against aphids, fleas, and ants. It kills them.
Pine oil is highly effective against mosquitoes . Mosquitoes find the smell utterly repulsive. Therefore, they will avoid your house and garden when the oil is diffused.
13. Tea Tree
The distinctive smell of thyme is not only good for controlling sucking insects, but it’s also effective against fungus.
Among the home remedies for plant insects, lavender is very powerful.
Flying insects such as flies, fungus gnats, and certain beetles seem to hate lavender oil. What’s more, you can use it to relieve itching from bug bites.
Lemongrass oil is an excellent repellent for fruit flies, mosquitoes, and fleas. This makes it handy to have around the house.
This is an effective oil for use in the garden and around the home.
Cinnamon oil makes a great deterrent for aphids (greenflies), earwigs, silverfish, mealybugs, scale insects, and mosquito larvae.
You can also use cinnamon powder to repel bed bugs.
Basil oil is another great way to keep insects away from plants. It not only repels caterpillars, but also flies, weevils, and moths.
Moreover, you can burn the oil and let the smoke permeate your garden.
Mugwort oil is a strong toxicant against the red flour beetle .
There are many items that you may already have in your house that can be extremely effective at either killing or driving away pests.
Items such as hot peppers, eggshells, or even used coffee grounds are effective at reducing infestations.
Garlic’s strong smell will help keep moles, gophers, and voles away from your yard and garden. Place the cloves in their tunnels. However, be sure to replace them periodically.
Alternatively, make a DIY bug spray for plants by blending 2 bulbs of garlic in a cup of water. Next, strain and mix the solution into a gallon of water along with 2 teaspoons of liquid soap.
Shake well, and use this as a natural pesticide for your vegetable garden. Garlic spray also helps to keep fungal issues at bay.
22. Egg Shells
Eggshells are great for your garden soil because they not only supply calcium but also discourage slugs and snails.
The sharp edges of the crushed shells will painfully scrape their gooey bodies.
23. Pepper Spray
You can use fresh hot peppers to make a DIY garden bug spray. It will repel caterpillars, spider mites, maggots, mayflies, and bugs.
For the recipe, puree 5 hot peppers in 2 cups of water. Next, add a teaspoon of liquid soap. Finally, strain and use this spray on bad insects and related pests.
24. Coffee Grounds
Coffee grounds also make a great natural pesticide for plants. Bugs and most animals hate it.
Therefore, place coffee grounds in areas where there are bugs in the garden soil and rodents causing problems. It also keeps away ants.
A mild vinegar solution can help control garden pests. To make a natural bug repellent for plants, combine 1 cup of vinegar and 1 teaspoon of liquid soap with 3 cups of water.
Next, add it to a spray bottle and use it on houseplants and outdoor plants. This homemade bug spray kills or repels fruit flies, aphids, stink bugs, mosquitoes, caterpillars, and other plant pests.
This is an effective measure to get rid of bugs in the vegetable garden naturally, which requires little to no money at all.
If you see a plant with a minor pest infestation, you might be able to pick off the pests or remove a section of it without having to uproot or destroy the entire plant.
26. Pull Out Weak Plants
By pulling out weak plants that are likely to get infected, you are helping to maintain healthy soil, and your garden will be much less appealing to pests.
If you do pull up an infected plant, be sure to wash your hands. Also, disinfect the tools so that possible diseases don’t spread the next time you use them.
Nets, fences, and anything that puts a strong defense between your crops and whatever wants to munch on them.
You can even use floating row covers that block invaders but still allow sunlight in.
A simple DIY home remedy to kill bugs without killing plants is to pick them off.
Go through your garden and manually pluck off anything you don’t want on your plants—insect eggs, adults, and larvae. Squish them or drop them in soapy water to suffocate them.
29. Water Pressure Sprays
Use a water hose with strong pressure to blast insect pests from your plants. However, ensure the plants are resilient enough to withstand the pressure.
A powerful blast of water can dislodge anything that may be eating your crops—aphids, mites, weevils, bugs, etc.
Other Ways to Get Rid of Pests Naturally
- The best way to get rid of little bugs on plants is never to have them in the first place. Therefore, make your garden less desirable for them to live in by keeping it clean.
- Additionally, avoid planting the same crop over and over in the same bed. This will help decrease soil-dwelling pests.
- Build up your soil. Healthy soil produces healthy plants, which are better able to withstand pest attacks.
- There are also flowers you can use to control bugs outside. Growing these plants on the edge of your garden helps keep certain critters away.
While there are many different methods of ridding your garden of vegetable pests, this list highlights quite a few organic pest control and eco-friendly options.
Above all, with these remedies, you should be able to work towards a pest-free garden while feeling happy about the methods used.