Skip to Content

Control Tomato Pests With These Organic Gardening Tips

Sharing is caring!

These organic gardening tips make it easy to control common garden pests that you are sure to encounter as a tomato gardener.

A preying mantis sitting on my deck.

 

Common Tomato Pests

Creepy critters like cutworms, flea beetles, grasshoppers, spider mites, and root weevils are all too eager to feast on your beautiful, healthy tomato plants.

However, four of the most common tomato pests you want to guard against are aphids, stink bugs, tomato fruitworms and the tomato hornworm.

The damage these pests cause varies, so it pays to know exactly what to look for so you know what method of action to take before too much damage is done.

So, let’s look at each one and discuss some organic solutions to get rid of them.

Aphids on a rose bush.

Aphids

These tiny green or black insects can either be winged or wingless and like to hang out in clusters on the bottom side of tomato leaves or tomato stems.

They suck moisture and nutrients out of your tomatoes, causing curled and yellowed leaves and stunted plants.

A picture of a stink bug.

Stink Bugs

True to their name, stink bugs let off a very foul odor if threatened or squashed.

Both nymphs and adults damage your tomatoes by sucking their sap and attacking the fruit.

Regardless of their age, stink bugs look exactly the same with an easily recognized shield-shaped body.

Adults can be black, brown or green, and either with or without markings.

Youths are basically just smaller versions of the adult stink bug.

When they attack your tomatoes, your plants are weakened and young fruit may form improperly as a result.

Yellow-white spots beneath the skin of ripened fruit are a common sign of stink bug damage to your crops.

Tomato Fruitworms

Also known as the corn earworm, these pink, green or brown insects with light striping grow to nearly 2 inches long.

They are actually moth larvae that bore into tomato fruit to feed.

The moths lay their eggs close to tomato stems with green fruit, and approximately a week later, you have a tomato fruit worm problem.

A tomato hornworm being attacked by parasitic wasps.

Tomato Hornworms

Tomato hornworms strip the leaves from tomato plants and also feed on green tomatoes.

They feed on the surface instead of boring into the developing tomato, so the fruit looks like ir has large open scars – or bitemarks – on it.

The moths lay their eggs on the underside of the tomato leaves at dusk with each moth laying one to five eggs per visit.

In the summer, the hornworms emerge from their eggs in about four days.

Then they feed for three weeks before a new generation of moths emerge.

Organic Garden Pest Control Solutions

Once you see any of these common and frustrating tomato pests on your plants, you want to take immediate action.

For starters, spray the affected areas with a strong stream of water to dislodge these insects.

If you spray water on the plants early in the morning for several days consecutively, you are sure to eliminate multiple generations of these quickly multiplying pests.

Once you have done that, you will want to employ the following organic pest control methods:

  1. Hand picking works well for insects such as the tomato hornworm, tomato fruitworm and stinkbugs. Fill a large can with a lid with hot, soapy water. Then take the time to put on a  pair of gardening gloves before you try to pick any of them up. Remove the lid from the can of hot soapy water and drop the pests into it, then quickly put the lid back on. When you are done, is best to leave the can sit outdoors overnight in a safe area to make sure the pests drown.
  2. Weeding keeps the areas around your plants free from weeds and other garden debris because this eliminates a favorite habitat and hiding place for many garden pests.
  3. Introduce beneficial insects such as ladybugs, praying mantis, and lacewings (all available for order online) to your garden and let them do what they do best. Alternatively plant a beneficial insect seed mix to attract them into your garden and keep them there.
  4. Mix organic insecticidal soap with water according to package directions – or buy a pre-mixed solution and apply it directly to the tomato pests for best results.
  5. Neem oil is an organic, plant-based oil that is very effective against aphids, stink bugs and tomato fruit worms. You can find it in many garden centers or order it online. Apply according to package directions for best results.

Oee thing that you do need to know if you choose to use any type of spray in your garden – even if it is organic – is that the same pesticides that kill insects also kill the beneficial bugs, so I highly encourage you to only do that as a last resort.

Garden pests are often an inevitable fact of life for tomato gardeners, however in addition to the tips above making sure your soil is healthy is a great way to prevent insect infestation in the first place.

However, with a little education and the right resources, you can to protect your hard work so you can relax and enjoy the fruits of your labors.

Growing Tomatoes

Use the buttons on the right hand side of the screen to share this article with friends or family who might find it useful. Pin the picture below to your pinboard on Pinterest for future reference.

The top photo is a preying mantis sitting on my deck. The bottom photo shows a tomato hornworm being attacked by parasitic wasps.

SaveSave

SaveSave

SaveSaveSaveSave

SaveSaveSaveSave

Sharing is caring!

This site uses Akismet to reduce spam. Learn how your comment data is processed.

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Sheri Ann Richerson is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.
Click here to read my full disclosure, Privacy and Cookie Policy!

Copyright (C) Sheri Ann Richerson, ExoticGardening.com 1998 - 2021