- What is an Insecticidal Soap?
Insecticidal soap a.k.a soap salts, is an organic pesticide made of potassium salts of fatty acids and is derived from plant oils like coconut oil, olive oil, etc.
The difference between soap salts and regular soap is the alkali used in making this. In bar soap, they use sodium hydroxide, whereas in insecticidal soap they use potassium hydroxide to make potassium salts of long chain fatty acids which are considered safe, non-toxic and eco-friendly and infact approved for use as an organic pesticide. As always, we always recommend you not to use hazardous chemical fertilizers and pesticides in our website.
PURCHASE LINKS:
Insecticidal Soap (Potassium Soap Salt) Concentrate: https://amzn.to/3vBBzzk
GardenSafe Ready to Spray Insecticidal Soap: https://amzn.to/3hD9MWV
- What is the mechanism of Action of Insecticidal Soap Spray?
Insecticidal soap acts by contact. It kills insects in three ways:
- It damages their cell membranes, causing the contents of the cell to leak out, leading to dehydration and death.
- It melts the protective wax that covers certain insects (mealybugs and other scale insects) and this leads to dehydration from evaporation.
- It blocks the pores through which insects breathe, leading to asphyxiation and death.
The pest treated usually dies very rapidly, within minutes of treatment.
- What are the insects and pests that are sensitive to Insecticidal Soap Spray?
Insecticidal soap is most effective on soft-bodied arthropods, a group that includes most plant pests like Aphids, Earwigs, Leafhoppers, Mealybugs, Sawfly larvae, Spider, mites, Thrips, Whiteflies and even Small caterpillars. Apart from these, insecticidal spray is also recommended and very effective for treating powdery mildew disease. Identify Various Pests here!
- What are the insects that are not harmed by Insecticidal Soap?
Normally, the pollinator insects like bees, butterflies, ladybugs, lacewings, etc. are not harmed by insecticidal soap.
- Ready to Buy Formulations of Insecticidal Soap:
You have two options to choose. One is Ready-to-use insecticidal soap spray that comes packaged in a spray bottle. The second option is to buy a concentrated solution. You have use some 5ml per liter of water and then spray on your plants. Many gardeners like the idea of the ready-to-use product because it’s already mixed in the correct proportions so there’s very little risk of plant damage. The bottle may be labeled as “Suitable for Organic Use,” or “Safer for Plants and Vegetables,” but if it is a true insecticidal soap, its bottle will list “potassium salts of fatty acids” as ingredients. Please check this composition before purchase.
PURCHASE LINKS:
Insecticidal Soap (Potassium Soap Salt) Concentrate: https://amzn.to/3vBBzzk
GardenSafe Ready to Spray Insecticidal Soap: https://amzn.to/3hD9MWV
- How to use these Insecticidal Soap Sprays?
Before we go to making your own powerful insecticidal spray, let’s learn how to use these commercial formulations. The ready to spray bottle is simple to use. Just shake well before use and start spraying thoroughly on the affected areas of your plant. If you have the concentrated solution of the insecticidal spray, use 5ml per liter of water or as directed in the bottle usage instructions. Mix well and spray the plant thoroughly or wet the plant completely, because It is effective only when it is wet and has no residual effect. In other words, it loses all its effect once it dries out. But the pests usually die very rapidly, within minutes of treatment. You may also perform a patch test before using it for the first time. We will discuss about it later.
- DIY Powerful Pesticide Recipe:
The active ingredient in insecticidal soap is the soap, itself. While many homemade recipes may tell you to add additional stuff, such as garlic, chili powder, etc, the insecticidal soap is actually the main ingredient. We will make the recipe for 1 liter of water in this demonstration.
- Take 1 liter of water in a container which can be closed (Distilled water is best. Do not use hard water)
- Add 1 full teaspoon of mild liquid soap – like hand wash liquid. Do not use stronger ones like dish wash soap. Liquid soaps contain potassium salts of fatty acids which are soap salts.
- Add 1 full teaspoon of vegetable oil like coconut oil to this. Now this will be your home made insecticidal spray. But to add more power to this, you need to add Neem oil to it, like about 5 ml, especially if the pests infestation is too extensive or resistant to any of the treatments.
- Mix it well by closing the cap and shaking it well for few minutes.
- Fill your spray bottle and shake every time before you spray.
- Both the liquid soap and the oil act as surfactants to help keep the solution from quickly running off the plant’s leaves when sprayed. The longer the solution remains on the plant’s foliage, the better the chance of killing the pests.
- What is Patch Test?
Whenever you make or use a pesticide for the first time, always do a patch test on a leaf first before spraying on the entire plant. You never know, how strong it is and may damage your plant. So, first spray it on a leaf or branch and wait for 1 or 2 hours. If the leaves start wilting, then its too strong to use. Dilute it accordingly and use.
- How often Should I spray?
For pest prevention, spray plants thoroughly with insecticidal soap once in 10 – 15 days. For treatment once weekly or max twice weekly. And after a heavy rain, you have to reapply the spray.
- Can I store this solution once prepared?
You can refrigerate it to store. But always better to make fresh solution every week.
PURCHASE LINKS:
Insecticidal Soap (Potassium Soap Salt) Concentrate: https://amzn.to/3vBBzzk
GardenSafe Ready to Spray Insecticidal Soap: https://amzn.to/3hD9MWV
The greenhouse millipede, also known as the hothouse millipede, short-flange millipede, or the garden millipede, is a common creepy pest in your garden that can cause severe damage to emergent vegetable seedlings and young plants.
How do I identify These Millipedes?
There are few types of these millipedes with hundreds of legs and can be white or brown or black in color. Unlike their cousin, the centipede, millipedes are not carnivores, instead they eat dead and rotting vegetation and they hide in moist places like your soil mulch layer, debris or inside the top layer of soil. They prefer darkness and moisture and hence they are more common in rainy season.
Are Millipedes Poisonous or Venomous?
Do not be
too scared, Millipedes, unlike centipedes, are not venomous and are generally
considered to be non-poisonous. However, there are some millipede species that release
some fluids that can cause irritation to human skin. Hence its always better to
wear garden gloves and employ safety precautions.
How do I kill or get rid off these
garden pests?
There are many solutions to control millipedes. We will list out these one
by one in 5 steps:
5. Visible Millipedes can be smashed or can be swept with a broom or a vacuum cleaner and can be disposed. But this is difficult because most of these are not visible and are found hiding under the soil or mulch layer.
4. Sticky Traps and Light Traps are another option that attract and trap these millipedes. But these are not available easily.
3. Chemical Pesticides: We will just name these pesticides because, we will not use any chemicals in our garden, specially vegetable gardening. The chemical pesticides that work are Propoxur, Cyfluthrin, Pyrethrins, Piperonyl butoxide, Deltamethrin, Cypermethrin, bifenthrin, etc.
2. Chicken and Cats: Before we proceed to our natural remedies, we will discuss on chicken. Chicken love to eat these type of insects and pests. Keeping a few hens can do wonders to get rid of these millipedes and even other pests in your garden.Cats, though they do not eat millipedes, they may chase them, play with them and smash them to some extent.
- Natural and Organic Pesticides. The mechanism of action of any pesticide whether organic or inorganic chemical is Systemic effect which can be slow in action and Contact poisons which kill the pests when they come in contact with it.
- Diatomaceous Earth is first in the list: This white powder is easily available at many garden stores and even online. Its completely harmless to people and pets.
- Borax: Similar to Diatomacous Earth, Borax is derived from boric acid and dries the millipedes out and kills them. It also acts as a stomach poison that will kill millipedes if ingested. It’s completely safe to humans. Just sprinkle the boric acid over the areas of infestation and do not water it for atleast 24 hours. You can check out my detailed video and article on boric acid or borax powder for plants and garden.
- Wood Ash: The action is similar to borax powder which dries out the soil and the pests. I also have a detailed video and article on the benefits of wood ash in gardening.