How to kill aphids on tomato plants?” is a common question most plant keepers ask. These tiny bugs can cause huge damage to many garden plants.

Killing Aphids on Tomato Plants

However, there are useful ways to evict them from plants by using different predators that attract beneficial insects. This guide consists of simple steps to help pest control and overcome aphids on tomato shrubs, so keep reading to find out how.

How To Control Aphids On Tomato Plants Naturally?

To control aphids on tomato plants naturally in your vegetable garden, you can employ various biological control methods. You could use natural sprays, which include neem oil or insecticidal soap, to wash aphids away. These will help you get rid of aphids naturally.

– Hand Removal

If you face minor aphid infestations, they are easily managed and handled naturally. You can easily pick those aphids and squish them with your fingers. If you are squeamish when handling bugs, wipe off that affected area with a damp cloth and dish soap.

Or, these aphids need to be washed off with a water spray. This will help you remove the pests without damaging the parts of the plants. Make sure you spray it correctly and on the right spot. If you have sprayed on the wrong spot, this may cause the pests to spread around in your whole garden.

You could also use a garden hose. Use a powerful nozzle to wash off all aphids from your plants and trees.

– Natural Oil-Based Sprays

Large infestations need some serious precautions. Neem is an essential addition to your preventive kit. It’s natural and would never damage your plants or deter other beneficial insects. It helps against aphids in all forms of development by suffocating them and halting reproduction.

Natural Neem Oil would Never Damage Your Plants

It will take a little bit of your time. Mix a tablespoon of neem oil in two cups of water and spray the mixed solution all over the tomato plant. Make sure to focus on the underside of the tomato leaves. Follow these steps once a week for better results.

Most of you may have heard about horticultural oil. It’s slightly different from other oils, usually called vegetable oil. These oils work as organic pesticides and suffocate aphids. They’re also effective against aphid-infestation-induced mold growth that could also harm your plants. It’s a two-in-one solution.

Note that these essential oils-based treatments should not be applied in extreme heat or on the hottest day as it may cause leaf burn.

– Alcohol Sprays

Rubbing alcohol is an easy and affordable spray to control aphid infestations. Pour ethanol into the spray bottle and mix equal parts of alcohol with water. To make the solution more effective, add a tablespoon of dish wash, as soapy water is the best organic method to get over aphids. For oil-based solutions, don’t ever spray them during the hottest times of the day.

– Predators and Companion Planting

Predatory insects are your garden companions. Some natural predators include ladybugs, lacewings, and parasitic wasps. These options are great in your garden, as these predators love to eat aphids and other garden pests. Attract these bugs by planting catnip, daisies, and marigolds in the garden, as they’ll attract these aphid predators that destroy aphids.

Another way to repel aphids is by planting plants like chives and marigolds. The smell of these plants and flowers helps deter black bugs on tomato plants. Moreover, choose aphids’ favorite plants, like nasturtiums, and place them nearby to take them away from your tomato plants.

– Traps and Row Covers

Row covers and yellow boards are the best ways to control and prevent aphids. The sticky boards attract aphids before they settle on tomato shrubs. But, these boards are reflective and must get placed with caution.

Row Covers to Control and Prevent Aphids

Hot temperatures can reflect off the ground and burn the leaves. These row covers are a great addition to the garden as they have different advantages, one of these being aphid prevention. Not only will they lower the chances of pests, but they also protect tomatoes from extreme sun and heat.

– Bug Spray With Baking Soda

Baking soda works as a natural garden pest killer. A homemade aphid spray mixed with baking soda is safe on tomato plants and kills bugs. Take two tablespoons of liquid dish wash mixed with two tablespoons of canola oil. Add three tablespoons of baking soda in two gallons of water, and your spray is ready to bust some aphids.

– Cayenne Pepper

Cayenne pepper works as an excellent solution for killing bugs. You can get a few products to make this solution. To create this solution, cut four dried cayenne peppers and store them in a bottle. Fill the rest with tap water and add a little soap. Mix it well and spray it on the plants. This way, the bugs in your garden get easily washed away. It is very safe to use cayenne pepper around or on grass as well.

– Castile Soap

Create an insecticidal soap to eliminate any thrips you observe on your tomato plant. Castile soap is an excellent ingredient for homemade tomato bug spray. The chemicals in castile soap instantly kill insects.

Insecticidal Soap to Eliminate Aphids on Plants

The pest control agents should be combined and shaken in a glass spray bottle. Use the soap spray when growing tomatoes in 5-gallon buckets or on any plant in your garden that has an aphid or hornworm infestation. It is advised to spray your tomato plants once every four weeks.

– Water and Dish Soap

Spray the plants with a solution of water and dish soap. This homemade insecticidal soap suffocates aphids by coating them. Make it by combining a few teaspoons of liquid dishwashing soap with one quart of water, then spraying or wiping the solution onto the plant’s leaves, stems, and buds.

If you have a severe infestation, you’ll want to use the wiping method—it is time-consuming, but it ensures that all aphids are removed from all parts of the plant.


1. Does Vinegar Help in Killing Aphids?

Yes, vinegar helps in killing aphids because it contains acetic acid. Use it by mixing it with water, and then put it in a spray bottle. It will help you wash away aphids, but it may harm your plants, so don’t use too much of it to prevent leaf damage.

2. Can Tomato Plants Recover From Aphids After Treatment?

Yes, tomato plants can recover from aphids after treatment if there is still time for additional growth to occur during the growing season and if efficient treatment procedures are used consistently and promptly. The healing process can be increased by removing harmed fruit and foliage and nourishing affected plants appropriately.

3. What Does a Tomato Plant Look Like After Aphid Damage?

A tomato plant looks sick after aphid damage and shows several symptoms. It includes stunted leaves that have curled edges. It happens as the pests suck the sap and other essentials of the leaves and stems. Because of this, the leaves struggle to grow.


All of us know about aphids, and we dread them all, as these tiny creatures can cause huge damage to garden plants like tomatoes, but you can kill these aphids by following simple steps. Here’s a summary of what you have read:

  • Get rid of aphids naturally as soon as possible by choosing the right methods, including hand removal, natural oil sprays, alcohol sprays, predators and companion plants, traps, and row covers to keep the tomato plants safe and secure.
  • Make sure to introduce beneficial insects that feed on aphids in your garden. You can use ladybugs and place them near your tomato plants.
  • Use homemade sprays even if there are no signs of large infestations. These can destroy aphids, and using them accurately has no side effects.
  • To get rid of bugs in a natural way on tomato plants, ensure that you use homemade sprays, including a bug spray with baking soda or a cayenne pepper solution.

Organic sprays and natural ways of killing aphids don’t need much of your time. We hope you have got the knowledge of how to effectively kill aphids.

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