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What to put on basil plants for bugs is one of the most common questions I get from home gardeners and herb lovers.
The short answer is that you can put a variety of natural, homemade, and store-bought solutions on basil plants to repel and eliminate common pests like aphids, spider mites, and Japanese beetles.
These remedies range from simple soap sprays to neem oil, and each one works differently depending on the type of bug you’re dealing with.
In this post, we’ll explore what to put on basil plants for bugs, the best prevention methods, and how to keep your basil healthy and thriving all season long.
Let’s dig into the best ways to protect your basil from those pesky invaders.
What to Put on Basil Plants for Bugs: The Top Natural Solutions
When you’re figuring out what to put on basil plants for bugs, the first step is understanding that not all bugs are the same.
Aphids, spider mites, whiteflies, and slugs all require slightly different approaches, but there are several all-purpose sprays that work wonders.
Here are the most effective things you can put on basil plants for bugs, along with how to use them properly.
1. Neem Oil Spray
Neem oil is one of the best things to put on basil plants for bugs because it’s organic and targets a wide range of pests.
This oil comes from the neem tree and works by disrupting the life cycle of insects, preventing them from feeding and reproducing.
To make a neem oil spray, mix one teaspoon of pure neem oil with a few drops of mild dish soap and one quart of warm water.
Shake it well and spray it on your basil plants, covering both the tops and bottoms of the leaves where bugs like to hide.
Apply this solution every seven to ten days, especially after rain, to keep pests at bay.
Neem oil is particularly effective against aphids, whiteflies, and spider mites, making it a reliable go-to for basil lovers.
2. Insecticidal Soap
Insecticidal soap is another excellent answer to what to put on basil plants for bugs, especially for soft-bodied insects.
This soap works by breaking down the outer shell of pests like aphids, mealybugs, and thrips, causing them to dehydrate and die.
You can buy a ready-made insecticidal soap or make your own at home with a simple recipe.
Mix one tablespoon of pure liquid soap (like castile soap) with one quart of water, and optionally add a teaspoon of vegetable oil to help it stick.
Spray this mixture directly on the bugs you see, making sure to coat them thoroughly.
Remember to test it on a small leaf first, as some basil varieties can be sensitive to soap.
Reapply every few days until the infestation clears up.
3. Garlic and Pepper Spray
If you’re looking for a homemade remedy for what to put on basil plants for bugs, a garlic and pepper spray is a fantastic choice.
The strong smell of garlic and the heat of chili peppers naturally repel many insects, including aphids, caterpillars, and beetles.
To make this spray, blend two garlic cloves, one small hot pepper, and two cups of water in a blender.
Let the mixture sit overnight, then strain it and add a few drops of dish soap to help it stick to the leaves.
Pour it into a spray bottle and apply it to your basil plants, focusing on the undersides of leaves.
This spray is safe and effective, but be careful not to use too much pepper, as it can irritate your skin or eyes during application.
4. Diatomaceous Earth
Diatomaceous earth is a powdery substance made from fossilized algae, and it’s great for what to put on basil plants for bugs that crawl.
This powder works mechanically by cutting into the exoskeletons of insects like slugs, snails, and ants, causing them to dehydrate.
Sprinkle a thin layer of food-grade diatomaceous earth around the base of your basil plants and on the soil surface.
You can also dust it lightly on the leaves, but be sure to reapply after watering or rain.
It’s safe for humans and pets but lethal to many garden pests, making it a smart addition to your pest control routine.
Other Things You Can Put on Basil Plants for Bugs
Beyond sprays and powders, there are a few other tactics to consider when deciding what to put on basil plants for bugs.
These methods focus on prevention and creating an environment that bugs simply don’t like.
1. Companion Planting
One of the smartest things you can put on basil plants for bugs is actually other plants.
Companion planting involves growing certain herbs and flowers near your basil to repel pests naturally.
Marigolds, for example, release a scent that deters aphids, whiteflies, and nematodes.
Nasturtiums act as a trap crop, attracting aphids away from your basil.
And chives or garlic planted nearby can confuse pests with their strong aroma.
By surrounding your basil with these protective plants, you reduce the chance of a serious infestation.
2. Essential Oil Sprays
Essential oils like peppermint, rosemary, and tea tree can also serve as what to put on basil plants for bugs.
These oils have strong scents that repel many insects without harming your plants.
Mix five to ten drops of your chosen essential oil with one quart of water and a few drops of dish soap.
Spray this mixture on your basil leaves every few days, especially after it rains.
Peppermint oil works well against spiders and ants, while rosemary oil targets beetles and flies.
Just be sure to use pure, high-quality essential oils for the best results.
3. Sticky Traps
If you’re dealing with flying bugs like whiteflies or fungus gnats, sticky traps are a physical answer to what to put on basil plants for bugs.
These bright yellow or blue cards are coated with a sticky adhesive that catches insects as they land.
Place the traps near your basil plants, just above the foliage, to intercept flying pests.
They don’t eliminate the problem entirely, but they help reduce the population and give you a clear idea of what you’re dealing with.
Replace the traps every couple of weeks or when they become full of bugs.
How to Apply These Solutions Correctly
Knowing what to put on basil plants for bugs is only half the battle; you also need to apply it correctly.
Always spray your basil in the early morning or late evening to avoid the harsh midday sun, which can cause leaf burn.
Make sure you cover both the upper and lower surfaces of the leaves, since many bugs hide underneath.
Don’t forget to check the soil and the stems, as pests like cutworms and root aphids can attack from below.
After applying any spray, wait a day or two to observe the results, then reapply as needed.
If you’re using a homemade remedy, always strain it well to prevent clogging your spray bottle.
And remember to wash your basil thoroughly before eating, even if you use organic solutions.
When to Apply Pest Control on Basil
The timing of what to put on basil plants for bugs is just as important as the product itself.
Start applying preventive sprays when your basil plants are about four to six inches tall.
That’s when pests typically start to appear, especially in warm, humid weather.
If you see visible bugs, act immediately to prevent them from multiplying and damaging your plant.
Continue to inspect your basil every few days, especially the undersides of leaves and new growth.
During the peak of summer, you may need to apply treatments once a week or more often if it rains.
Stop spraying about a week before you plan to harvest, and always wash the leaves before use.
So, What to Put on Basil Plants for Bugs?
What to put on basil plants for bugs comes down to a few tried-and-true options that are both safe and effective.
Neem oil, insecticidal soap, garlic and pepper spray, and diatomaceous earth are your best bets for active infestations.
Companion planting, essential oils, and sticky traps add an extra layer of protection for prevention.
The key is to choose the method that matches the type of bug you’re dealing with and to apply it consistently.
With these solutions in your gardening toolkit, you can keep your basil healthy, flavorful, and free from unwanted visitors all season long.
Now get out there and give your basil the care it deserves.
Your plants, and your pesto, will thank you.