Neem oil is a popular natural solution for gardeners, known for its ability to protect plants from pests and diseases while being environmentally friendly. Extracted from the seeds of the neem tree, this oil works as an effective pesticide and fungicide, making it a go-to choice for those looking to maintain healthy, thriving plants without the use of harsh chemicals.
With so many neem oil products on the market, it’s important to choose one that is pure, potent, and safe for both your plants and the environment. In this guide, we review the best neem oils for plants, break down their effectiveness, ease of use and key features so you can keep your garden pest free and flourishing.
5 Best Neem Oil for Plants
1. Dyna-Gro NEM-008 Neem Oil
- Used on any plant to produce clean and shiny leaves
- Natural shine on leaves without clogging the stomata
- Cold pressed from the seeds of the neem tree
- Size: 8 oz
- Available in a variety of sizes
Unlike other neem oil solutions and concentrates with additives and water, the Dyna-Gro NEM-008 Neem Oil is 100% natural neem oil. This product ranks among the best neem oil for plants because of its purity of the cold-pressed neem oil. Cold-pressing is specifically an effective extraction method of neem oil due to its ability to preserve the organic purity of the neem plant. In addition, it enhances the durability of the extracted neem oil.
This neem oil product comes as a concentrate that should be diluted for foliar spraying. Subsequently, it is effective in eliminating both pests and fungal diseases. If you are worried about interferences in the plant processes of photosynthesis and respiration, this pure neem oil product has no side effects on plants.
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2. Verdana Organic Cold Pressed Pure Neem Oil
- ORGANIC : Genuine, USDA Organic Certified Neem Oil for all your...
- 100% NEEM OIL : Pure, Cold-pressed, completely natural, totally...
- INDOOR & OUTDOOR : Neem oil is very effective as indoor/ outdoor...
- SKIN CARE, HAIR CARE : Neem oil is a great ingredient for Skin...
- FOR PET CARE: Safe for pets and very effective for pet skin care.
We highly recommend Verdana Organic Cold Pressed Pure Neem Oil for those seeking a natural, multi-purpose oil that’s effective for plant care, skin treatment, and even household pest control.
Verdana Organic Cold Pressed Pure Neem Oil is a fantastic natural solution for a variety of needs, from eco-friendly pest control to skincare. Its strong odor and need to be diluted may take some getting used to, but its purity and effectiveness combined with its many uses all make this a valuable addition to any home.
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3. Natria 706250A Neem Oil Spray for Plants
We highly recommend Natria 706250A Neem Oil Spray for Plants for gardeners looking for an easy-to-use, effective solution to protect plants from pests and diseases.
Natria 706250A Neem Oil Spray for Plants is an easy, all-in-one option for gardeners dealing with pests and fungal issues. While it feels like it will require frequent applications and has a smell, it is easy to use, and has broad spectrum protection, making it a solid go to for healthy and pest free plants.
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4. Neem Bliss (16 Fl Oz) - Pure Neem Oil Concentrate
- Neem Bliss is 100% Cold-pressed pure Organic Neem Oil, completely...
- OMRI Listed (For Organic Use). Used in Organic Farming.
- JUST ONE INGREDIENT - 100% Pure Neem Oil, natural, cold-pressed....
- Very effective Indoor/ Outdoor Plant Spray-High Azadirachtin...
We highly recommend Neem Bliss Pure Neem Oil Concentrate for those seeking an all-natural, cold-pressed neem oil that can be used for various purposes, including gardening, skincare, and hair care.
Neem Bliss Pure Neem Oil Concentrate offers an excellent natural solution for both personal care and gardening. Its purity and versatility make it a standout option for those who prioritize chemical-free products. The strong smell and thick texture may be something to get used to, but its benefits make this worth it – it does the job in different places very effectively.
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5. Organic Neem Bliss 100% Pure Cold Pressed Neem Seed Oil
- Neem Bliss is 100% Cold-pressed pure Organic Neem Oil, completely...
- OMRI Listed (For Organic Use). Used in Organic Farming.
- JUST ONE INGREDIENT - 100% Pure Neem Oil, natural, cold-pressed....
- Very effective Indoor/ Outdoor Plant Spray-High Azadirachtin...
Another pure neem oil concentrate is the Organic Neem Bliss Pure 100%. This product is free from additives and preservatives, making it purely organic with no harm to plants or animals. In addition, the neem oil is cold-pressed to retain the maximum effectiveness of neem oil on harmful pests and fungi.
Furthermore, it is recommended by OMRI as an effective organic solution that is also safe for human use. It is also suitable for both outdoor and indoor plants due to its biodegradable qualities. However, this product can be harmful to your eyes, and you should be careful while spraying.
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Benefits and Applications of Neem Oil for Plants
1. It’s Completely Biodegradable
Neem Oil is an organic compound derived from the evergreen native Indian Neem tree (Azadirachta indica). This natural aspect of the oil makes it biodegradable and non-toxic to the environment. Therefore, the Environmental Protection Agency considers Neem oil safe for the environment and the human population.
Neem oil is an extract of crushed tree seeds, which are then mixed with water using a solvent. Different Neem oil compounds have varying active chemicals due to the different processing techniques. One of the known approaches is making cold-pressed Neem oil. Therefore, whether you use cold-pressed Neem oil or any other formulation, the oil and water break down easily without the risk of polluting water and the environment in general.
2. It can Blanket Control Hundreds of Insects
You can effectively control a wide range of insects and pesticides using Neem oil. Therefore, if your yard is infested with different kinds of insects, you can easily use this singular but effective solution to eliminate them all. Neem oil kills garden pests and insects like:
- Spider mites
- Aphids
- Scale bugs
- Whiteflies
- Mealybugs
- Caterpillars
- Thrips
- Whiteflies
- Greenflies
- Grasshoppers
- Desert locusts
3. It Kills Pests Throughout Their Lifecycle
In addition to its blanket control, Neem oil also has the benefit of killing pests at any stage of their lifecycle: egg, larvae, and adult. This is because the Neem oil insecticide contains the active chemical azadirachtin, which works through the following ways to eliminate pests:
- Prevents feeding
- Disrupts growth
- Smothers out
At the adult stage, azadirachtin stops the feeding of pests. Additionally, pests' regular growth hormones are disrupted by the Neem oil, thus preventing transformation. Finally, at the egg stage, the active component azadirachtin suffocates the bugs to prevent their hatching.
4. Neem Doesn’t Create Dead Zones
Dead zones refer to the killing of both targeted harmful pests and beneficial insects. Unlike an alternative synthetic pesticide, Neem oil insecticide targets the chewing insects and leaf sucking pests around the treated trees and plants. So, in the end, you will not interfere with the biodiversity in your soil and garden.
If you are wondering which insects to consider beneficial, they include butterflies, lady bugs, bees, earthworms, and other beneficial insects. Neem oil doesn't inhibit the pollinators from gathering food, making them useful in making your garden plants productive. Furthermore, Neem oil favors the existence of earthworms in your soil, which help in aerating the soil and fertilizing it when they die.
5. It’s Harmless to Pets and Wildlife
While using Neem oil for your gardening purposes and pest control, you will not worry about toxic residuals harming your pets and other animals. This organic gardening solution quickly degrades under direct sunlight, making it non-toxic and safe to use around pets, critters, fish, wildlife, and livestock in your garden. In case they ingest it before it degrades, it is still won't cause harm.
6. It Comes In a Variety of Formulations
Neem oil is available in different concentrations and solutions, depending on its uses in the garden. A common Neem compound is a solution with an insecticidal soap that helps in boosting Neem oil's killing power. Other forms you can get Neem oil include:
- Dust
- Concentrates
- Wettable powders
- Cakes
- Granules
Besides the different forms Neem oil comes in, there are different ways you can apply your select mix of Neem oil. Neem, for instance, can be used as a dormant season pesticide, such as in the winter, or as a foliar spray. Therefore, you can spray Neem oil mix to kill dormant pests such as aphids, caterpillars, and mites during winter.
7. Pests cannot Become Neem Oil Resistant
Pests often develop resistance and immunity to synthetic pesticides. This adaptation often translates to companies improving their gardening solutions to remain effective. However, pests and insects cannot develop resistance or any form of tolerance to Neem oil. So ultimately, you can apply Neem oil spray repeatedly without the worry of reduced effectiveness.
8. Safe to Use Until the Day of Harvest
Moreover, Neem Oil pesticide is an all-season pest control agent that you even can use on your harvesting day. The enabling aspect of this Neem tree extract is that it breaks quickly and cannot cause harm even after harvesting. However, it is recommended that you thoroughly wash your plant to remove any Neem residues before harvesting. Even after rinsing, if you ingest some amount of Neem from your plant produce, it won't cause harm to you.
9. Neem oil can Be Used as a Bactericide
A common bacterial infection on plants is fire blight. This disease makes your plant leaves wilt and appear burnt. Despite the menacing presentation of such bacterial plant infections, you can easily restore the health of your plants through the use of Neem oil spray. Most appropriately, you should spray the Neem pesticides during the dormant period, such as winter, to adequately deal with bacteria.
10. Acts as a Powerful Organic Fungicide
Specifically, as a fungicide, Neem oil can be used to kill and prevent most fungi. A common fungal presentation in plants is powdery mildew, especially in berry bushes. Other fungal diseases that Neem oil for plants can help you control include:
- Tip Blight
- Anthracnose
- Scab
- Rust
- Black spot
- Leaf spot
Its application while preventing fungi requires a week to two weeks spray on affected plants. After the fungi have been eliminated, ensure you spray plants with Neem oil every two weeks as a fungi preventative measure.
11. Protecting your Fruits and Vegetables
If you wish to maintain an orchard free of harmful insects, you can use Neem oil. For example, worms may enter your fruits, such as apples, making them unsuitable for consumption. Accordingly, spray your fruit trees and berry trees before blossoming, repeat spray when petals fall, and after every two weeks to kill harmful insects in your orchard. Common fruit pests Neem oil can help control include:
- Mealworm
- Coddling moth
- Leafhoppers
- Wooly apple aphids
On the part of berry bushes, they are often affected by fungal diseases and powdery mildew, which you can use Neem oil to control. Other fungal infections you can control with Neem oil are:
- Orange rust
- Fire blight
- Verticillium wilt
Moreover, spraying Neem oil on your vegetables and herbs can help you protect them from fungal infections and insects.
12. Neem Oil can Eliminate Lawn Japanese Beetle Larvae
Japanese beetle larvae, also known as Lawn grubs, can be a menace to your lawn. This pest devours your grass from the underground by chewing off the grass roots. An easy way of telling if your turf is infested with lawn grubs is when you notice large bare or brown spots.
Accordingly, Neem oil works to kill the lawn grubs in all lifecycle stages. Specifically, its active ingredient azadirachtin prevents the Japanese beetles from laying eggs, inhibits larval growth, and repels them. Consequently, night applications of Neem oil are recommended as well as post-rainfall spraying.
13. Safe to Use on Indoor Plants
If your houseplants are infested with aphids, and you don't want to risk spraying pesticides near your kids or pets, Neem oil is safe for indoor uses. A foliar spray will effectively deal with an indoor plant pest infestation without any adverse effects on this account. Eventually, you will be able to maintain healthy indoor plants.
14. Neem Cakes have Both Fertilizer and Insecticidal Effects
Neem cakes are crushed seeds and fruits that form natural and organic manure as by-products of the Neem oil extraction process. Considering that they are also products of the Neem plant, they also contain pest management properties. Therefore, Neem cakes double as soil-nitrogen enhancers and pesticides, such as controlling white ants, nematodes, and lawn grubs.
15. Safe for Greenhouse Applications
Greenhouses are effective ways of extending growing seasons but are also faced by the menace of pest infestations such as aphids, mites, whiteflies, and scale insects. Additionally, most insecticides are not suitable for use in enclosed spaces such as in greenhouses. However, with the best Neem oil for plants, you can safely free your greenhouse from harmful insects and have healthy plants.
16. Easy to Use
When it comes to the ease of applying Neem oil, all you are required to do is mix your solution with water and directly spray it to the affected plant leaves. Regardless of what concentration of Neem oil you get, all you need to do is mix it with water and spray it directly on plant leaves. If your plant responds well after 24 hours, you can increase your Neem oil spray as a preventive solution. Always check and apply your product's directions of blending the correct amounts of oil and water.
After diluting a batch of Neem oil, make sure to use it all up because the active ingredient breaks down within eight hours. While applying Neem oil for prevention and combating pests, you should use a 0.5% solution and 1% solution respectively after every two weeks. In case you are wondering what you need to make your own 0.5% or 1% Neem oil mix, below are the requirements you'll need:
For 0.5% Neem
- 1 teaspoon of pure Neem oil
- 1/3 teaspoon of insecticidal soap
- Warm water (1 liter)
For 1% Neem
- 200 milliliters of pure Neem oil
- 5 teaspoons of insecticidal soap
- Warm water (20 liters)
The process of mixing these components begins with adding the insecticidal soap to the warm water. After that, add the cold-pressed Neem oil slowly into this mixture while mixing well. When your mix is ready, add it to your sprayer and constantly shake well for even Neem oil sprays.
Frequently Asked Questions about the Best Neem Oil for Plants
1. What plants should you not use Neem oil on?
Neem oil as an organic pesticide is not known to be inappropriate for any plant. However, before you entirely spray it to a new garden, it is recommended that you test it on a small garden section and, if safe, proceed with the whole garden. Furthermore, when you use it on fruits and vegetables, ensure to rinse adequately before consumption.
2. Can I apply Neem oil for plants daily?
Neem oil is appropriate for regular use and more so when you need it, even if it means daily. A good estimate of regular sprays is once a week. If you spray Neem oil regularly, it will serve as a prevention of pest infestations. If your area has a new pest infestation, using the best Neem oil for plants will ultimately help you save your garden plants and trees from potential infection. However, too much Neem oil on a garden can burn the plant leaves, especially for stressed plants and recent transplants.
