What to Spray on Tomato Plants to Keep Bugs Off

Tomatoes are a popular vegetable to grow in gardens, but they can also attract a variety of insects. These insects can damage or even destroy your tomato plants, ultimately reducing your harvest. Fortunately, there are several natural and chemical insecticides available that can help keep these bugs off your tomato plants. Here are some effective options:

Natural Insecticides

Natural insecticides are a popular option for those who want to avoid using synthetic chemicals in their gardens. Here are some natural insecticides that you can use to keep bugs off your tomato plants:

Neem oil: Made from the seeds of the neem tree, neem oil works by disrupting insects' hormonal systems, which ultimately kills them. Simply mix one tablespoon of neem oil with one gallon of water and spray on your tomato plants.

Diatomaceous earth: This powdery substance is made from the fossilized remains of diatoms, a type of algae. It works by dehydrating insects as they crawl over it. Simply dust the powder on the leaves and stems of your tomato plants, making sure to avoid getting it on the fruits.

Garlic spray: Garlic has natural insecticidal properties, and can help keep bugs away from your tomato plants. Simply crush a bulb of garlic and mix it with a few cups of water. Let the mixture sit overnight, then strain it and spray it on your plants.

Chemical Insecticides

If natural insecticides aren't doing the trick, you may need to turn to chemical insecticides. These can be effective, but be sure to use them only as directed on the label, as they can be harmful to humans and animals. Here are some chemical insecticides that may work for your tomato plants:

Pyrethroids: These synthetic insecticides work by attacking the nervous systems of insects, ultimately killing them. They are effective against a wide variety of insects, including aphids, whiteflies, and tomato hornworms. Be sure to follow the package instructions carefully when using pyrethroids on your tomato plants.

Spinosad: This insecticide is made from the soil bacterium Saccharopolyspora spinosa, and works by targeting the nervous systems of insects. It is effective against many types of insects, including tomato hornworms and fruit flies.

Preventative Measures

In addition to using insecticides, there are several preventative measures you can take to keep bugs off your tomato plants:

Remove infected plants: If you notice that some of your tomato plants are already infected with bugs, remove them from your garden. Bugs can quickly spread from one plant to another, so it's best to get rid of infected plants as soon as possible.

Clean up debris: Piles of leaves, branches, and other debris can provide a breeding ground for insects. Be sure to clean up your garden regularly to avoid attracting bugs.

Plant herbs: Many herbs, such as mint, basil, and rosemary, have natural insecticidal properties. Planting these herbs near your tomato plants can help keep bugs away.

By using natural or chemical insecticides, as well as taking preventative measures, you can keep bugs off your tomato plants and enjoy a bountiful harvest.