If you have bugs in your garden, here's an easy, organic and free way to get rid of them. If you're squeamish about this, put on rubber gloves, garden gloves, or latex gloves and pluck the bugs off the plants, one species at a time, and put them in a cupful of water. You'll get used to it enough to do it bare-handed later, which is much easier. It may sound icky, but it works.
Then take the water and pour it into your blender and blend until you can't see the actual critters any more. Put the water into a spray bottle and spray it on the the same plants you took the bugs from. This prompts a "danger, Will Robinson" response from that type of bug and keeps them away.
Just do one kind of bug at a time, be they beetles, aphids or whatever else you encounter. No pesticides, no traps to empty, just a lovely, bug-free garden. And don't worry about the blender. Wash it as usual and it'll be just fine.
Source: I think I read this in "Organic Gardening" magazine years ago.
This page contains the following solutions.
I use soap to spray for insects in garden. Mix 1 tablespoon of liquid soap with water in a quart spray bottle from Dollar store. Spray once a week and after a rain.
We all know the risks of nicotine by smoking, but the same is true for bugs by eating. Rid your garden of pests by way of nicotine.
Rhubarb leaves can be used to make an effective organic insecticide (cabbage caterpillars, aphids, peach and cherry slug, etc).
To keep those pesky insects away from your plants, combine one bulb of garlic, 1 small onion, and 1 Tbsp. cayenne pepper in the blender. Mix with 1 quart water and let stand for one hour. Then add 1 Tbsp. Ivory liquid and mist your plants! By Rachel's mom
Shake well. Spray every 8 to ten days. Water well before and after spraying. Don't spray blooms and don't wash spray off. Make new spray each time you spray as the chlorine content will weaken
To help keep the worms and leaf eating bugs off your garden plants use jalapeno peppers, boil and strain, put the pepper "broth" in about a gallon of warm water and spray plants, this is a very safe bug repellent. Use about 6-8 peppers to a quart of water.
Aphids thrive in temperate regions and feast on plants. They are one of the most pesky and destructive pests that gardeners have to deal with. This page contains homemade aphid spray recipes.