- 1 List of Our Favorite Organic Products
- 2 What is insecticidal soap and How It works?
- 3 5 Best Insecticidal Soap Review for Organic Gardening
- 4 Precautions and Tips
- 5 Conclusion
Who doesn’t like the organic method to get rid of insects? There are tons of organic products or recipes for the plant. Insecticidal soap is one of them. Yes! You can use insecticidal soap or any natural soap to remove the insect from your garden. But doesn’t all the soap contain any harsh chemicals? Remember just saying organic soap won’t make the soap in organic soap.
So, How would you know what is the best insecticidal soap? You have to buy different insecticidal soap and do some experiments on your plant to get the best organic insecticidal soap.
Don’t worry! You don’t have to anything. I have researched and found the best insecticidal soap for you.
List of Our Favorite Organic Products
|Insect Killing Soap||Price|
|Safer Brand 5118 Insect Killing Soap|
|Bonide Insecticidal Soap Concentrate|
|Garden Safe Brand Insecticidal Soap|
|Natria 706230A Insecticidal Soap|
|Natural Guard Spinosad Soap|
What is insecticidal soap and How It works?
Insecticidal soap is potassium based long-chain fatty acid that can kill the soft-bodied insect. The main ingredient of soap Potassium laurate. Insecticidal soap is also known as horticultural soap.
The fatty acid extract from coconut, plum, lavender and other plant oil. Short-chain fatty acids can also use to making insecticidal soap. But it may cause phytotoxicity.
Insecticidal soap works in many ways. The main mechanism is it can disrupt the insect cuticle when it contacts the insect body that dehydrating the insect by evaporation and the insect dies.
Another possible mechanism is-
When the liquid soap comes in contact with the insect trachea.it blocks or disrupts the trachea. That’s why insects can’t open trachea and die.
5 Best Insecticidal Soap Review for Organic Gardening
1.Safer Brand 5118 Insect Killing Soap
Safer Brand insect killing soap can be used to kill insects (see the affected insect list on amazon) on trees, shrubs, flowers, fruits, vegetables. Ornamental foliage and houseplants like fern, rubber, aloe vera, pothos, bamboo, broccoli, cabbage, and onions without harming your family and pets.
This is a long-standing and powerful insecticide that derivate from natural ingredients. It contains 50% potassium salt fatty acid and seaweed extract that can weaken the insect’s waxy coat of the cell membrane quickly.
Many gardeners don’t like to use insecticidal soap for its soapy smell. Good news; It hasn’t any kind of harsh smell of soap and also dries quickly. It is also approved as an organic insecticide by OMRI(Organic Materials Review Institute) and NOP(National Organic Program).
Though the manufacturer claims it doesn’t kill the beneficial insect. In my opinion, apply when you won’t notice honey bee or other beneficial insect activities.
Mix 4 tbsp of concentrate into a gallon of water and spray on your plant. Wait 7-10 days to reapply if needed. Don’t store the solution for future uses. This insect-killing soap can store for years unopened and one year once opened. You should try this trusted and proven remedy to kill the harmful insects of your garden.
2.Bonide Insecticidal Soap Concentrate
The Bonide insecticidal soap can be used houseplants, vegetables, flowers(especially roses), fruits greenhouses, ornamental, nut Trees, citrus, berries, and Shrubs. Basically, It almost safe for all plants except sweet peas, nasturtiums, delicate ferns. It is also NOP listed organic product for gardening.
It is very effective to get rid of insects like scales, plant bugs, sawfly larvae, psyllids, tent caterpillars, thrips, ants, spider mites, adelgids (woolly aphids), aphids, lace bugs, mealybugs, mites, grasshoppers, leafhoppers, earwigs and whitefly. It is also effective to eradicate insects at any stage ( adult, larval, Nymph and pupal stages of some pests).
It has 47% potassium salt fatty acids as the active ingredient and has no flammable substances that make it suitable for the greenhouse plant but has a very little smell that is not noticeable.
You can use this insecticide before the day of harvesting. You don’t have to worry about the poisons. Using the Bonide insecticidal soap is completely healthy and environment-friendly.
Mix 4 teaspoons of soap in 1 quart of water. Pour the mixer into a spray bottle and spray plant parts. Repeat the process weekly or bi-weekly to get an insect-free garden.
3.Garden Safe Brand Insecticidal Soap
Garden safe is another trusted brand for organic products. They provide OMRI certified insecticidal soap since 2002.
The active ingredients of Garden safe insecticidal soap made from plant derivated fatty acids. It can be used on different plants of indoors, outdoors and greenhouses to kill different garden insects successfully ( See the affected insect list on amazon) .Especially it is very effective to get rid of aphids, mealybugs, and mites and also effective to kill insect at different stages.
Want to know the best part of this soap?
You don’t need to add water to make the final solution. It is ready to use spray and contains 1% active ingredients. Just shake well and spray on the affected plant. To get a quick and effective result, you can also spray the soap on the backside of leaves and soil.
4.Natria 706230A Insecticidal Soap
Natria soap is another ready to use insecticide that has 1% potassium salts of fatty acids. It can kill aphids, mealybugs, mites, whiteflies, and other listed pests(see the list on amazon) in a minute. It is a multipurpose insect killer that can kill listed insects in different stages on vegetables, houseplants, greenhouse plants, ornamentals, fruit, seed and nut trees.
Big news: this non-synthetic soap works very fast and very gentle to the plants. It also acts as a preventive bio fungicide. So that it can prevent many important diseases cause of the fungus. Moreover, It has no smell and perfect for your houseplant.
It is also ready to use insecticide that contains 1% active ingredient of potassium fatty acids. Shake the container before spray and spray directly on the plant.
5.Natural Guard Spinosad Soap
Spinosad is a natural compound made by the bacterial species Saccharopolyspora spinosa that highly toxic to insects. Natural Guard Spinosad Soap contains 0.940% of potassium slat fatty acid and 0.005% of spinosad.
It can be used to control aphids adelgids, ants,armyworms, beetles, borers, caterpillars,tent caterpillars,chinch bugs, codling moth, earwigs, fruit flies, gypsy moth, lace bugs, leafhoppers, leafminers, leafrollers, loopers, mealybugs, mites, mole crickets, plant bugs, psyllids, sawfly larvae, scale insects, spider mites, thrips, webworms, weevils and whiteflies.
The special benefit of this soap-
It can use to kill insects from the lawn and also can control powdery mildew. To control this disease, apply on the infected areas when the first sign appears. It is ready to use insecticide. Just shake and spray to kill the listed insecticides.
#Bonus: Best Soap for Making Insecticide at Home
The homeowner always likes to use their kitchen products to use in their gardens. This is why I want to recommend a few general natural soaps for homemade insecticide. Concentration is the main problem of the homemade insecticidal soap. But you can fix the concentration by applying first on a small plant part.
Here is the recommended best homemade insecticidal soap-
- Bronner’s – Pure-Castile Liquid Soap
- Earth Friendly Products ECOS Dishmate Dishwashing Liquid
- Marseille Soap Marius Fabre
To learn more about homemade insecticide, see my another article about how to make insecticidal soap spray at home.
Precautions and Tips
- Do not use the insecticidal soap on sweet peas, nasturtiums or delicate ferns.
- It is a contact insecticide, so apply such a way that insect comes in contact with the insecticide.
- Don’t apply during the full sun.
- It causes temporary eye injury and skin irritation. So wear protective goggles and apron.
- If the soap gets in your eye, hold eyes open and rinse gently with clean water for a few minutes.
- Spray the insecticide in the evening when the beneficial insect(bee) activity is low.
- Is it kill moths, worms and May I apply on rubber plant or bonsai? People are always asked this type of question. Honestly speaking, the manufacturer can’t answer the question confidently if the plants and insects do not remain on their list. That’s mean it doesn’t work on those insects.
The tips: Do some experiments. Apply the insecticide on the small part of the plant and wait 2-3 days. If everything okay.spray on the entire plant.
- Don’t use just the upper leaves.apply also undersides of the leaves.
- Repeat the treatment weekly or bi-weekly, If needed.
Lastly, I want to tell you never apply any insecticide without a test in the small part of your plant. Because some of the plants are so sensitive. It is not a wise idea to kill the plant instead of the plant. Also, read carefully the label of insecticide.
I hope this article can help you pick the best insecticidal soap for your garden.