Make Organic Pesticides for Your Cannabis Plants



As a cannabis plant grower, it’s important to protect your plants from pests that can threaten their growth and quality. While chemical pesticides are widely available, they can be harmful to both the environment and the user. Fortunately, there is another option: organic pesticides. These types of pesticides are made from natural ingredients and are safer for you and your plants. In this article, we’ll discuss the various types of organic pesticides available, how to make them yourself, and their application to effectively protect your cannabis plants.

Why Use Organic Pesticides?

Organic pesticides are a popular option among growers of cannabis plants due to their many benefits. These natural pest control methods are derived from plants and minerals, and they are considered safe for humans and the environment. Here are some of the key reasons why organic pesticides should be used for cannabis plants:

Reasons to use Organic Pesticides:
✓ Protects against pests and diseases naturally
✓ Safer for the environment and human health
✓ Reduces the amount of harmful chemicals in the soil and water supply
✓ Does not harm beneficial insects that help with pollination and pest control
✓ Promotes better overall plant health and growth
✓ Can be easily made at home using natural ingredients

By choosing to use organic pesticides over synthetic ones, growers can protect their plants from unwanted pests and diseases without harming the environment or themselves. Using organic pesticides can improve the overall health and growth of the plant by providing it with natural nutrients and protection against pests. So, it’s worth considering using organic pesticides for your cannabis plants.

Types of Organic Pesticides

Types Of Organic Pesticides
As we explore the world of organic gardening and pest control, we’ll discover a range of natural remedies for keeping cannabis plants healthy and thriving. From neem oil to diatomaceous earth, hot pepper spray to garlic oil, there are a variety of organic pesticides available to help protect your plants from harmful insects and other pests. So let’s take a closer look at some of these options and how they can benefit your cannabis garden.

Neem Oil

Neem oil is a popular organic pesticide that comes from the seeds of the neem tree, which is native to India. This oil is great for controlling a wide range of pests, including aphids, mites, and whiteflies. One of the biggest advantages of neem oil is that it is safe for humans and animals, so you won’t have to worry about harming animals or yourself while applying the oil to your plants.

To use neem oil as a pesticide, you can either buy pre-made neem oil spray or make your own at home. To create your own neem oil spray, follow these steps:

– Mix one teaspoon of neem oil with one quart of warm water and a few drops of dish soap.
– Stir the mixture well to ensure that the oil is evenly distributed.
– Pour the mixture into a spray bottle and shake well before each use.

When applying neem oil to your cannabis plants, it’s important to remember a few things:

– Neem oil should only be applied during the vegetative phase of your plants’ growth cycle.
– Be sure to spray all parts of the plant, including the leaves, stems, and buds.
– Neem oil should be applied when the temperature is below 90 degrees Fahrenheit to prevent damage to the plants.
– Apply neem oil once a week for best results.

By following these steps, you can effectively control pests on your cannabis plants using neem oil. Keep in mind that prevention is key, so be sure to regularly inspect your plants for signs of pests and take action as soon as you notice any issues.

Diatomaceous Earth

Diatomaceous Earth is a natural and non-toxic type of pesticide that is made from fossilized remains of small organisms called diatoms. It works by dehydrating and killing insects when they come into contact with it.

This type of pesticide is effective against a wide range of pests, including aphids, ants, thrips, and mites. It is also safe for humans and animals to be around, making it a great choice for organic cannabis farming.

Advantages of using Diatomaceous Earth:

Advantages Description
Natural Diatomaceous Earth is made from fossilized remains of diatoms
Non-toxic It is safe for humans and animals
Effective It works by dehydrating and killing insects
Wide range of pests It is effective against aphids, ants, thrips, and mites

How to apply Diatomaceous Earth:

When applying Diatomaceous Earth to cannabis plants, it is important to wear gloves and a mask to avoid breathing in the fine powder. Simply sprinkle the powder onto the leaves and stems of the plants, making sure to cover all areas where pests may be present.

Prevention vs Treatment:

Diatomaceous Earth is both a preventative and treatment method for pests. By applying the powder to the soil before planting, it can prevent pests from becoming a problem in the first place. However, if pests do appear, Diatomaceous Earth can be applied directly to the plant to eliminate them.

Diatomaceous Earth is a safe and effective organic pesticide option for cannabis plants. It is easy to apply and can prevent and treat a wide range of pests without harming the plants or the environment.

Garlic Oil

Garlic oil is a great natural pesticide that can help keep pests away from your cannabis plants. It contains sulfur compounds that repel insects and discourage fungal growth. To make garlic oil, you will need:

  • Garlic cloves
  • Mineral oil or vegetable oil
  • A spray bottle

To prepare the garlic oil, first, crush enough garlic cloves to fill a small jar about halfway. Next, fill the jar with mineral oil or vegetable oil, making sure to cover the garlic completely. Cover the jar and let it sit for a few days, giving the garlic time to infuse into the oil.

Once the oil has infused for a few days, strain the garlic cloves out of the oil using a cheesecloth or fine mesh strainer. Pour the oil into a spray bottle and add a few drops of dish soap, which will help the oil stick to the leaves of your cannabis plants.

To apply the garlic oil to your plants, spray it directly onto the leaves, making sure to cover both the tops and bottoms of the leaves. Be sure to spray your plants in the evening or early morning to avoid any potential sunburn caused by the oil. Repeat the application every few days or after rain until you see a significant improvement in the reduction of pests.

One thing to note is that while garlic oil is an effective natural pesticide, it can also repel beneficial insects, so use it with caution. Garlic oil should be used as a preventative measure or in combination with other organic pesticides. Additionally, it is important to monitor your plants and discontinue the use of garlic oil if it starts to cause any damage to your plants.

Hot Pepper Spray

One of the most effective and widely-used organic pesticides for cannabis plants is a hot pepper spray. This spray is made from natural ingredients and is very simple to prepare at home. Here is what you need to know about hot pepper spray for your cannabis plants:

  • Ingredients: The main ingredient for hot pepper spray is hot peppers, which contain a compound called capsaicin that repels insects and pests. You will also need water and liquid soap.
  • Preparation: To prepare the spray, you need to chop up the hot peppers and boil them in water. Once they have been boiled for around 15 minutes, strain the mixture and add some liquid soap to the solution.
  • Application: When applying hot pepper spray to your cannabis plants, it is important to wear gloves and protective clothing to avoid skin irritation. Spray the mixture directly onto the leaves and stems of your plants. The spray will help to repel insects and pests and can even deter larger animals from eating your plants.

Hot pepper spray is a great choice for those who want to use natural and organic pesticides on their cannabis plants. It is easy to make at home, and the ingredients are readily available. With regular application of hot pepper spray, you can ensure that your plants remain healthy and pest-free. Just remember to wear protective gear when using this potent spray.

How to Make Organic Pesticides

How To Make Organic Pesticides
Creating your own organic pesticides is easier than you might think. By using simple ingredients that you can find in your kitchen or garden, you can make effective pest repellants that are safe for your cannabis plants and the environment. In this section, we’ll show you step-by-step how to make different types of organic pesticides that you can use to keep your cannabis plants healthy and pest-free. So, roll up your sleeves and let’s get started!

Neem Oil Spray

One effective organic pesticide for cannabis plants is neem oil spray. Neem oil, extracted from the neem tree, has been used for centuries in traditional medicine and agriculture. It acts as an insecticide, fungicide, and miticide, making it a versatile solution for pest control.

To make a neem oil spray, you will need:

Ingredients Amount
Neem oil 2 tablespoons
Mild liquid soap 1/2 teaspoon
Water 1 quart


  1. Mix the neem oil and mild liquid soap in a spray bottle.
  2. Add water to the spray bottle and shake well to combine.
  3. Thoroughly spray the cannabis plants, covering both the tops and bottoms of the leaves.
  4. Repeat every 7-14 days as needed.

Neem oil spray is most effective when used as a preventative measure or at the first sign of a pest infestation. It is important to note that neem oil can be toxic to some beneficial insects, such as bees, so it should be applied in the early morning or late evening when bees are less active. Additionally, it is important to not overuse neem oil, as it can build up in the soil and potentially harm the plant over time.

Diatomaceous Earth Mixture

One effective DIY organic pesticide for cannabis plants is a diatomaceous earth mixture. Diatomaceous earth is a fine powder made from the fossilized remains of tiny aquatic organisms called diatoms. When applied to insects with an exoskeleton, diatomaceous earth scratches their protective layer, causing them to dry out and die.

To make a diatomaceous earth mixture, you will need:

Ingredients Measurements
Food-grade diatomaceous earth 1 cup
Water 2 quarts
Spray bottle 1

First, pour one cup of food-grade diatomaceous earth into a large mixing bowl. Add two quarts of water and mix thoroughly. The mixture will form a thick paste. Pour the paste into a spray bottle and shake well before using.

When using diatomaceous earth mixture as a pesticide, it’s important to wear gloves and a mask to avoid inhaling the fine powder. To apply the mixture, spray it directly onto the leaves and stems of the cannabis plant, being careful to coat both the top and underside of the leaves. As with all pesticides, it’s important to test a small area of the plant before applying the mixture to the whole plant.

Using diatomaceous earth as an organic pesticide is a great way to control pests like aphids, mites, and whiteflies without resorting to harsh chemicals. It’s also an environmentally friendly option, as diatomaceous earth breaks down quickly and doesn’t harm beneficial insects like bees and ladybugs.

Garlic Oil Spray

Garlic oil spray is an effective organic solution for pest and fungal problems. It’s a great option for cannabis growers who want to avoid synthetic pesticides. Garlic contains natural compounds that are active against insects and pathogens, making it an excellent ingredient for a homemade pesticide. Here are the steps to make garlic oil spray:

  1. Chop 10 to 12 garlic cloves and place them in a glass jar.
  2. Add two teaspoons of mineral oil and stir well. Mineral oil will help to release the garlic’s active compounds.
  3. Add one quart of water and a few drops of dish soap to the jar, and stir well. Dish soap will help to emulsify the oil and water, creating a homogeneous mixture.
  4. Let the mixture sit for 24 hours, allowing the garlic compounds to infuse the oil and water.
  5. Strain the mixture with a fine mesh strainer or cheesecloth, removing the garlic pieces and any other solids.
  6. Pour the liquid into a spray bottle and label it with the date and the ingredients.

To apply garlic oil spray to your cannabis plants, you should follow these guidelines:

  1. Shake the bottle well before using the spray.
  2. Spray the solution on the affected areas of your plants, covering both sides of the leaves and the stems.
  3. Reapply the spray every three to five days, or after a rain event.
  4. Avoid spraying during the hottest hours of the day, as this could cause burn damage to the plants.

It’s important to note that garlic oil spray is best used as a preventative measure rather than a treatment. You should apply it before any pest infestation or fungal infection occurs. Garlic oil spray may not be suitable for all cannabis strains or growth stages, so it’s recommended to test it on a small area before applying it to the entire crop.

Hot Pepper Spray Recipe

Hot pepper spray is a simple but effective method of organic pest control for cannabis plants that can be made at home with ease. The capsaicin present in hot peppers is a natural deterrent for pests, making it an essential ingredient in many organic pesticides. Here’s how you can make hot pepper spray for your cannabis plants:

Ingredients Amount
Hot peppers (dried or fresh) 1-2 cups
Garlic cloves 10-15
Water 1 gallon
Liquid soap or dish detergent 1 tablespoon

To make the hot pepper spray, start by chopping up the hot peppers and garlic cloves and placing them in a large pot. Add water and bring the mixture to a boil. Let the mixture simmer for 15-20 minutes until the peppers and garlic have softened.

Next, take the pot off the heat and let it cool for 10-15 minutes. Once the mixture has cooled down, strain it through a fine mesh sieve or cheesecloth to remove the solids. The resulting liquid is your hot pepper spray.

Lastly, add a tablespoon of liquid soap or dish detergent to the pepper spray mixture. This helps to break down the surface tension of the spray and ensures it coats and sticks to the plant leaves more effectively.

Note: When handling hot peppers, be sure to wear gloves to avoid skin irritation. Do not touch your eyes or face while handling hot peppers.

Using hot pepper spray can be a great way to safely and effectively control pests on your cannabis plants without having to resort to harmful chemical pesticides.

Application of Organic Pesticides

Now that we have discussed the different types of organic pesticides, the focus shifts to their application. While organic pesticides are an effective and non-toxic solution, using them incorrectly can lead to poor results. It is essential to understand when to apply, how to apply, and the difference between prevention and treatment. Let’s explore these aspects in detail.

When to Apply

Knowing the right time to apply organic pesticides on your cannabis plants is crucial in ensuring their effectiveness in preventing pest infestations. Regular monitoring of your plants is important so that you can detect the presence of pests and act immediately.

Cannabis Growth Stage

The timing of pesticide application largely depends on the plant’s growth stage. For instance, neem oil spray is recommended to be applied during the vegetative stage up to the first week of flowering. At this crucial time, your plants’ immune system is at its strongest, making it easier for the plants to ward off pests.

Weather Conditions

Weather conditions also play a significant role in determining when to apply organic pesticides. It is best to apply them when there is no strong wind that could cause the solution to drift away or intense sunlight that could burn your plants’ leaves. The best time to apply pesticides is early in the morning or just before sunset when the temperature is mild and the sun is not too strong.

Pest Infestation

If left unchecked, pests can quickly multiply and wreak havoc on your cannabis plants. When you detect a pest infestation, apply organic pesticides immediately to prevent further damage. Waiting too long to apply pesticides can cause the infestation to spread and require more drastic measures to control.

To summarize, applying organic pesticides at the right time is crucial for their effectiveness in preventing pest infestations. Monitor your plants regularly, take into consideration the growth stage, weather conditions, and react immediately to pest infestations.

How to Apply

When applying organic pesticides to your cannabis plants, there are a few things to keep in mind. Here are some steps you can follow to ensure proper application:

  • Read the instructions: Before applying any organic pesticide, it’s important to read the label carefully to ensure that you understand the product’s instructions and usage guidelines. Some products may require mixing, dilution or may need to be applied at a certain time of day.
  • Wear protective clothing: It’s important to protect your skin, eyes, and airways from exposure to the pesticides you’re using. Wear gloves, goggles or a mask if needed.
  • Identify the affected area: Examining the plants carefully for signs of pests or disease would help you determine which areas of the plant require application.
  • Apply pesticides as needed: Depending on the severity of the pest infestation or the disease outbreak, you may need to apply the organic pesticide multiple times to get full control over the situation. It is always better to monitor the situation and reapply as needed.
  • Apply during the right time: Typically, it is best to apply organic pesticides in the morning or evening, when the temperature is cooler and the sun isn’t directly overhead. Avoid applying pesticides in hot temperatures as it can cause plant damage or loss.
  • Be consistent: Consistency is key to successful organic pesticide application. This includes following the product’s instructions and applying the pesticide at a regular interval for optimal results.
  • Clean up after use: Make sure you clean up excess pesticides and containers thoroughly to avoid contamination and accidental exposure to humans and pets.

By following these steps, you can safely and effectively apply organic pesticides to your cannabis plants without causing any harm to the environment, your plants or yourself.

Prevention vs Treatment

When it comes to protecting your cannabis plants from pests and diseases, prevention is always better than treatment. Taking steps to avoid infestations in the first place will save you a lot of time, effort, and money in the long run. Here are a few things you can do to prevent pests and diseases from attacking your cannabis plants:

Prevention Treatment
Use clean soil and pots when planting Use organic pesticides when necessary
Maintain proper humidity and temperature levels Remove affected leaves, branches, and plants
Use companion planting and natural predators Isolate infested plants to prevent spreading
Practice good sanitation by cleaning tools and equipment Consult with experts for severe infestations

By following these prevention tips, you can minimize the need for treatment and keep your cannabis plants healthy and thriving. However, if you do notice signs of infestation or disease, it is important to act quickly and use the appropriate treatment method to prevent further damage.


In conclusion, the use of organic pesticides for cannabis plants is not only beneficial for the environment, but also for the overall health and wellness of the plants. These naturally derived pest control methods can effectively target and eliminate pests without the need for harmful chemicals or synthetic pesticides.

By opting for natural pesticides, growers can ensure that the cannabis they produce is safe for consumption, free from any harmful residual effects that may result from the use of synthetic pesticides.

While there are several types of organic pesticides available, each with its unique benefits and drawbacks, it is essential to choose the one that best suits your specific needs and the pests you are trying to target. With proper application and timing, organic pesticides can effectively control pests and prevent future infestations, leading to a bountiful harvest of healthy and thriving cannabis plants.

In summary, the use of organic pesticides is a more sustainable, safer, and effective way of controlling pests in cannabis plants, and with the proper knowledge and application, growers can achieve optimal results without compromising the plant’s health or quality. So, why not give it a try and experience the benefits of using organic pesticides in your cannabis cultivation practices?

Frequently Asked Questions

What are organic pesticides?

Organic pesticides are pesticides made from natural substances, such as plant oils and minerals, that are used to control pests and diseases on plants.

Why should I use organic pesticides on my cannabis plants?

Using organic pesticides avoids exposing the cannabis plants to harmful chemicals, reduces the risk of unwanted residue on the buds, and helps to maintain a healthy ecosystem in the garden.

What is neem oil?

Neem oil is a natural oil derived from the seeds of the neem tree. It has insecticidal, antifungal, and antibacterial properties, making it an effective organic pesticide.

What is Diatomaceous Earth?

Diatomaceous Earth is a naturally occurring sedimentary rock that is made of fossilized diatoms. It is an effective organic pesticide that works by slicing through the waxy exoskeleton of insects, causing them to dehydrate and die.

How can I make garlic oil?

To make garlic oil, chop or crush fresh garlic cloves and add them to mineral oil. Let the mixture sit for a day or two, then strain out the garlic and use the oil as a pesticidal spray.

What is hot pepper spray?

Hot pepper spray is a homemade insecticide made from peppers, such as jalapenos, that contain capsaicin. Capsaicin is a natural deterrent to insects and pests and can be used to prevent damage to cannabis plants.

How often should I apply organic pesticides?

The frequency of pesticide applications will depend on the severity of the pest problem and the type of organic pesticide being used. As a general rule, it is best to apply organic pesticides every few days to deter pests and diseases.

Should I apply organic pesticides before or after flowering?

It is best to apply organic pesticides before the flowering stage of the cannabis plant. Once the plant begins to flower, it is more sensitive to changes and treatments, and the use of pesticides could affect the yield and quality of the buds.

How do I prevent pests from attacking my cannabis plants?

Preventing pests from attacking your cannabis plants can be done by maintaining a clean growing environment, regularly inspecting the plants for signs of pests or diseases, and using natural deterrents such as planting companion plants and using insect-repelling essential oils.

Can I use organic pesticides on indoor cannabis plants?

Yes, organic pesticides can be used on indoor cannabis plants to control pests and diseases. However, care should be taken to apply the pesticide only to the target area and avoid exposing the plant to excessive moisture, which can lead to mold and other issues.


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