Do Squash Bugs Get On Tomato Plants

Squash bugs do get on tomato plants, and if you’ve spotted those flat, grayish-brown insects crawling around your tomatoes, you’re not imagining things.
 
These pests aren’t picky eaters, and while they’re famous for destroying squash and pumpkins, they’ll happily wander over to your tomato plants too.
 
Squash bugs get on tomato plants mainly when their preferred food sources run low or when they’re searching for new places to hide and lay eggs.
 
The damage they cause to tomatoes might not look the same as what you’d see on a zucchini plant, but it’s still something you need to watch out for.
 
In this post, we’ll explore why squash bugs get on tomato plants, what kind of damage they cause, and how you can protect your tomato crop from these stubborn garden invaders.
 
Let’s dig in.
 

Why Squash Bugs Get on Tomato Plants

Squash bugs get on tomato plants for several reasons, and understanding these reasons can help you deal with them more effectively.
 
Here’s what’s going on:
 

1. They’re Looking for Food When Squash Runs Out

Squash bugs prefer plants in the cucurbit family like squash, pumpkins, cucumbers, and melons.
 
But when those plants are harvested, wilted, or simply not available anymore, squash bugs get on tomato plants as a backup food source.
 
They’ll feed on the leaves, stems, and even the fruit if they can’t find their favorite host plants nearby.
 
This is especially common late in the season when squash plants are declining and tomato plants are still going strong.
 

2. Tomato Plants Offer Good Hiding Spots

Tomato plants are dense and bushy, which makes them perfect hiding spots for squash bugs.
 
These pests like to shelter near the base of the plant, under leaves, and in the soil right around the stem.
 
So even if squash bugs aren’t actively feeding on your tomato plants, they might still hang around because your tomatoes provide shelter from predators and harsh weather.
 

3. They Can Lay Eggs on Tomato Leaves

Female squash bugs will lay their eggs on tomato plants if they can’t find better options.
 
You’ll typically see clusters of small, bronze-colored eggs on the undersides of tomato leaves.
 
When those eggs hatch, the nymphs start feeding on your tomato plants right away, which can lead to serious damage if you don’t catch them early.
 

What Damage Do Squash Bugs Cause to Tomato Plants?

Squash bugs get on tomato plants and cause damage that can range from mild to severe, depending on how many bugs you’re dealing with.
 
Here’s what to look for:
 

1. Yellowing and Wilting Leaves

Squash bugs feed by piercing plant tissue and sucking out the sap.
 
When they feed on tomato leaves, they remove the nutrients and moisture the plant needs to stay healthy.
 
This causes leaves to turn yellow, wilt, and eventually die.
 
You might notice this damage starting on the lower leaves and working its way up.
 

2. Brown Spots and Curled Leaves

As squash bugs continue feeding, you’ll start seeing brown spots on the leaves where they’ve inserted their mouthparts.
 
The leaves may also curl or become distorted as the damage spreads.
 
This weakens the plant over time and can reduce your tomato harvest significantly if you don’t take action.
 

3. Damage to Tomato Fruit

Squash bugs usually go for leaves and stems first, but they’ll also feed on tomato fruit if the infestation is heavy.
 
They leave small, discolored spots on the tomatoes where they’ve fed.
 
These spots can make the fruit look unappealing and may even introduce secondary infections.
 

4. Introduction of Disease

Squash bugs can carry diseases like bacterial wilt and yellow vine decline.
 
When they feed on your tomato plants, they can transmit these pathogens, which can cause your plants to wilt and die quickly.
 
This is why it’s so important to control squash bugs as soon as you spot them on your tomatoes.
 

How to Keep Squash Bugs Off Tomato Plants

If squash bugs get on tomato plants in your garden, here’s how you can stop them:
 

1. Handpick and Destroy Them

The simplest way to deal with squash bugs on tomato plants is to pick them off by hand.
 
Check your plants early in the morning or late in the evening when the bugs are most active.
 
Drop them into a bucket of soapy water to kill them quickly.
 
Also, check the undersides of leaves for egg clusters and scrape them off into the soapy water too.
 

2. Use Row Covers Early in the Season

Floating row covers can keep squash bugs from getting to your tomato plants in the first place.
 
Just make sure to remove the covers when your tomato plants start flowering so pollinators can reach them.
 

3. Keep the Garden Clean

Squash bugs love to hide in garden debris, so keep your garden tidy.
 
Remove spent plants, fallen leaves, and old boards or mulch where they might shelter.
 
This reduces the places where squash bugs get on tomato plants and makes your garden less inviting to them overall.
 

4. Plant Trap Crops

Plant squash or pumpkins near your tomatoes as trap crops.
 
Squash bugs will go for those plants first, and you can then focus your control efforts there instead of on your tomatoes.
 
Just be sure to monitor the trap crops regularly and destroy the bugs before they move on.
 

5. Apply Neem Oil or Insecticidal Soap

If you’re dealing with a heavy infestation, neem oil or insecticidal soap can help.
 
Spray your tomato plants thoroughly, focusing on the undersides of leaves and the stems where squash bugs like to hide.
 
Reapply every seven to ten days until the bugs are gone.
 

So, Do Squash Bugs Get on Tomato Plants?

Squash bugs do get on tomato plants, especially when their preferred host plants are scarce or when they’re looking for shelter and egg-laying sites.
 
They can cause yellowing leaves, brown spots, damaged fruit, and even spread diseases that can kill your tomato plants.
 
But with regular monitoring, handpicking, row covers, and a clean garden, you can keep squash bugs off your tomatoes and enjoy a healthy harvest.
 
Hope this post has helped you understand why squash bugs get on tomato plants and how to stop them.