This is a very powerful solution, so go easy at first - test on a small area before declaring all-out war!
3headsnot cloves, of garlic - crushed
2medium onionsfinely chopped
2Tsppure liquid dish soap -Dr. Bronner's is best - it is organic do not use any detergent - it lasts too long and upsets the biological balance of the soil organisms.
1cupapple cider vinegar
1Tspextra hot pepper sauceDave's Insanity Sauce is great!
For the Garlic/Onion Extract
Add crushed garlic and chopped onion to 1/4 cup mineral oil and let soak for 24 hours.
Dissolve liquid dish soap into 1 pint of warm water, stirring well.
Slowly soap-dissolved water to mineral oil, stirring well.
Strain out solids through fine gauze or cheesecloth, then store in glass container - do not use a metal one as the extract will react with it!
For the Bug Solution
Add Garlic/Onion extract to apple cider vinegar and hot sauce.
Stir well, making sure not to get any on your hands - it will burn!
Use a 20:1 dilution ratio as a starting point - 20 parts water to 1 part bug solution. If bugs die rapidly, increase dilution to 30:1 or 40:1 until bugs don't die off as rapidly, then go back one dilution.
It is best to make this fresh as needed, as the oils will work best on the bugs when they are at their peak. Another approach is to use garlic essential oil that has been distilled and is many times more potent than the home-grown extract. If using the essential oil, start with 5 - 10 drops of oil in place of the extract. Look for garlic essential oil in your local health foods store or apothecary.
From the Terroir Seeds test kitchen. Home Garden Bug Solution https://underwoodgardens.com/home-garden-bug-solution/