DIY Natural Pest Control Spray

July 17, 2013 7 Comments


Don't buy expensive bottles of organic pest control spray. Make your own!!!

You can use just soap and water. You can add the Neem oil with just soap and water. You can do soap, essential oil, and water. The point is, you don't have to use all the ingredients at the same time, but you do require an emulsifier. If you are using soap and not agsil16h to emulsify than make sure you are using enough soap to emulsify the oil. Shake every minute or so while spraying and use right away. 

Pro Tip: Switch it up and don't let the bugs get used to what you're doing. This is KEY to winning the war.

Items Discussed in the video:

1. Neem oil or Karanja Oil (natural insecticide safe for plants and worms etc.) 1oz per gallon water

2. Agsil16H (Potassium Silicate) 1.5 Grams of Agsil16H per Ounce of Neem to Emulsify.

3. Dr. Bronners Magic Soaps to emulsify Neem oil and kill bugs (1 Ounce per gallon prevention and 2 ounces per gallon infestation)

4. Aloe Vera 200x powder Great additive to any spray (1 gram per 199 grams water makes about 3/4 cup pure aloe vera juice and that is good for 3-4 gallons water)

5. Essential Oils: Cinnamon, Rosemary, Eucalyptus and others. (5-10 Drops per gallon total)

6. Neem Cake: Soak (with or without a bag) 1 cup in 1 gallon water for 24 hours and strain. Use soap or emulsifier at 1 ounce per gallon then spray! Also, Top dress with dry neem cake at 1 teaspoon per gallon of soil for container plants to prevent house flies and mites from developing in the soils surface.


Use all sprays right away!

Spray in the early morning or late evening. Spray more often when it's hot out and when it's raining. Spray less in the winter, maybe once every 5-10 days as preventative measure.

Insects lay eggs on the underside of the leaves. Hence it is important to spray on the underside of the leaves as well.

It is better to use low concentration of extracts frequently.

Each acre of land can be sprayed with 15 gallons of ready to use solution. 

Pro Tip: You can use garlic and Cayenne pepper too. Get creative and test the new recipes on 1 plant in a small area first. 

Please post any questions in the comments area, and I will answer them personally.  

If you have a specific pest problem, please include details.

7 Responses


March 14, 2016

Started making my own IPM I’m taking advantage of peppermint, Rosemary, and was going to try out lavender. Does this sound like a good mix? Make a past and then mix it with some Bronners? Thanks guys!


July 07, 2015

Try adding some cider vinegar to your spray also. I haven’t had any mold problems, but I always hear that it helps…at least with powdery mildew.


May 13, 2015

the fact that abuses occur EVEN WITH retolagiun tells us that even more would occur without the retolagiun.I concede the historical point in part because Octane only became an issue when LEAD was banned – and note that the industry did not voluntarily ban it… the govt had to do it.But the law, requires that the Octane be posted and the posted value be what the fuel has.If there was no retolagiun – there would be no posting at many stations and many others that posted would likely sell lower octane fuel and advertise it as a higher octane – for a higher price.this is the part of the “free market”that basically incentivizes profits by cutting costs – which sometimes can and does lower quality by substituting unbeknownst to the buyer.It’s true that the buyer can sue for damages but we’ve already been through a history of this – and it’s a remedy not really feasible for most consumers.Yes, you can switch to other providers but there is no guarantee that they also won’t end up doing the same thing especially if the competition is undercutting them and taking sales.The contention seems to be that when the govt regulates that it is abrogating the “liberty”, the “rights” of those regulated.But the flip-side is what are the “rights” of those who buy to not be defrauded.And basically it comes down to a vote.Octane is but one of thousands of products that get regulated for basically the same reason – as a consumer protection – a protection that consumers want – and that according to the Constitution – have a process and a “right” to vote to have their govt – regulate.


February 19, 2015

Is the DIY insecticide the right solution for a lemon that’s suffering from sooty mildew and scale? I think ants are involved in both, and unfortunately the tree is in shade and right next to a compost pile, so it’s not ideally situated. I tried a fairly labor intensive round of spraying and washing leaves and fruit clean last year with a homemade horticultural oil (veg oil, water and a bit of doc bronners), which seemed to help, but problem comes back. Thanks, Kaite


September 01, 2014

I’m never going to use a gallon of this spray at a time, I’m wondering if the neem oil, AgSil and water mixture can be stored for later used?


June 13, 2014

Hi Jeff! I hope you get those bugs handled, we just started carrying Pure Neem Oil imported from India and It’s really effective.

The pepper plant leaves are not having bug issues, it’s actually called Edema.

Edema in plants is the extended swelling in plant organs caused primarily by an excessive accumulation of water. This occurs since the cell walls are composed of flexible cellulose.

Check out this article on Edema on


June 12, 2014

i have aphids amd whiteflies. ive been spraying 25b oils mixed with fish oil. its working well when i spray but they keep coming back! my plants look great but i know they are going to start to hurt soon. my peppers are getting hit hard, and new leaves are deformed and im not sure if its the bugs now. let me know if bugs can make leaves weird shapes and bubbly. thanks

Leave a comment

Comments will be approved before showing up.