This post contains affiliate links. As an Amazon Associate I earn from qualifying purchases. If you click a link and make a purchase, I may receive a small commission at no extra cost to you.
Grasshoppers do eat basil plants, and they can cause serious damage when they decide to make your garden their buffet.
If you’ve been asking yourself, “do grasshoppers eat basil plants?” the short answer is yes, they absolutely do.
These hungry insects are not picky eaters, and your fragrant basil is basically like a five-star meal to them.
Grasshoppers eat basil plants by chewing large, irregular holes in the leaves, and in severe cases, they’ll strip the plant down to just the stems.
In this post, we’ll explore why grasshoppers are drawn to basil, how to tell if they’re the culprits behind your damaged herbs, and the best ways to protect your basil from these jumping pests.
Let’s dig into everything you need to know about keeping your basil safe.
Why Grasshoppers Eat Basil Plants
Grasshoppers eat basil plants because basil offers them the perfect combination of soft, tender foliage and high moisture content.
Unlike tougher, woody plants, basil leaves are easy for grasshoppers to chew through with their strong mandibles.
Basil also releases a fragrant aroma that, while pleasant to us, actually acts as a beacon to hungry grasshoppers in the area.
These insects are most active in warm, dry weather, which is exactly the same conditions basil loves to grow in.
So if your basil is thriving in the summer sun, you can bet grasshoppers have noticed it too.
1. Basil’s Soft Leaves Are Easy Targets
One of the main reasons grasshoppers eat basil plants is the texture of the leaves.
Basil doesn’t have thick cuticles or tough fibers that make it hard to bite through.
Grasshoppers can easily tear into basil leaves, making it one of the first plants they’ll attack in a garden.
If you have basil growing alongside other herbs like rosemary or thyme, you’ll likely notice grasshoppers go for the basil first because it’s simply easier to eat.
2. High Moisture Content Attracts Them
Grasshoppers need water to survive, and they get a lot of it from the plants they consume.
Basil is made up of about 90% water, which makes it incredibly appealing to grasshoppers looking for hydration.
When grasshoppers eat basil plants, they’re not just getting a meal, they’re also getting a drink.
This is especially true during hot, dry spells when other water sources are scarce, making your basil even more vulnerable.
3. Warm Weather Brings More Grasshoppers
Grasshopper populations explode during hot, dry summers, and that’s also prime time for basil growth.
If you’ve been noticing more grasshoppers in your yard, your basil is going to be a primary target.
Grasshoppers are cold-blooded, so they thrive in warm temperatures and become more active and hungry as the mercury rises.
This means the hotter it gets, the more likely grasshoppers will eat basil plants in your garden.
How to Tell If Grasshoppers Are Eating Your Basil
Before you can fix the problem, you need to confirm that grasshoppers are indeed the ones munching on your basil.
There are a few telltale signs that grasshoppers eat basil plants and not some other garden pest.
1. Look for Ragged, Irregular Holes
Grasshoppers don’t make clean cuts like caterpillars do, they create jagged, torn edges on the leaves.
If your basil leaves look like someone took a hole punch to them but with rough edges, that’s a classic sign of grasshopper damage.
You might also see entire leaves missing, with only the central vein or stem left behind.
2. Spot the Grasshoppers Themselves
The most obvious way to know if grasshoppers eat basil plants is to actually see them on the plant.
Grasshoppers are most active during the day, especially in the morning and late afternoon.
If you sneak up on your basil patch, you might see them jumping away as you approach.
Check the underside of leaves too, as some species like to hide there while they feed.
3. Check for Grasshopper Droppings
Grasshoppers leave behind small, dark, cylindrical droppings that look a bit like tiny grains of rice.
If you see these on or around your basil plants, it’s a sure sign that grasshoppers have been feasting on them.
These droppings are usually found near the base of the plant or scattered on the lower leaves.
Best Ways to Protect Basil from Grasshoppers
Now that you know grasshoppers do eat basil plants, let’s talk about how to stop them from destroying your precious herbs.
There are several effective methods to keep grasshoppers away from your basil, ranging from simple physical barriers to natural repellents.
1. Use Floating Row Covers
One of the most effective ways to prevent grasshoppers from eating basil plants is to physically block them from reaching the leaves.
Floating row covers are lightweight fabric barriers that let in sunlight and water while keeping pests out.
Drape them over your basil plants and secure the edges with soil or stakes.
This creates a protective shield that grasshoppers simply cannot jump through.
2. Introduce Natural Predators
Another great way to control grasshoppers is to invite their natural enemies into your garden.
Birds, especially chickens and guinea fowl, love to eat grasshoppers and will happily patrol your yard for them.
You can also encourage beneficial insects like spiders, praying mantises, and robber flies to take up residence near your basil.
If grasshoppers eat basil plants in your garden, having these predators around will keep their numbers in check.
3. Spray with Neem Oil or Garlic Solution
If you prefer a more hands-on approach, you can spray your basil with natural deterrents that make it less appealing to grasshoppers.
Neem oil is a great option because it disrupts the feeding behavior of grasshoppers and makes the leaves taste bitter.
You can also make a homemade garlic spray by blending garlic cloves with water and a few drops of dish soap.
Spray this mixture on your basil leaves every few days, especially after rain, to keep grasshoppers at bay.
4. Keep Your Garden Clean and Tidy
Grasshoppers love to hide in tall grass, weeds, and garden debris during the cooler parts of the day.
By keeping your garden clean, you remove their hiding spots and make your basil less accessible.
Mow the lawn regularly, pull up weeds, and clear away any piles of leaves or brush near your basil plants.
This won’t completely stop grasshoppers from eating basil plants, but it will reduce their numbers in your garden.
5. Use Diatomaceous Earth
Diatomaceous earth is a fine powder made from fossilized algae that works wonders against grasshoppers.
When grasshoppers crawl over it, the powder cuts into their exoskeleton and causes them to dehydrate and die.
Sprinkle a light layer of food-grade diatomaceous earth around the base of your basil plants and on the leaves themselves.
Just remember to reapply it after it rains, since moisture will reduce its effectiveness.
So, Do Grasshoppers Eat Basil Plants?
Grasshoppers do eat basil plants, and they can quickly turn your thriving herb garden into a disaster zone if left unchecked.
The good news is that you have plenty of options to protect your basil, from physical barriers to natural predators and organic sprays.
By taking action early and using a combination of these methods, you can keep grasshoppers from eating basil plants in your garden and enjoy a healthy, abundant harvest all season long.
Remember that grasshoppers are persistent, so you might need to stay consistent with your defense strategies.
Now that you know the answer to whether grasshoppers eat basil plants, you’re well-equipped to defend your herbs and keep them thriving.
Happy gardening, and here’s to basil that stays safe from those jumping munchers.