I was raised by gardeners to be a gardener but back when I was a kid, my parents had no idea about the 'down the road' repercussions of the poisons they frequently used to control garden pests. These days, armed with a little more knowledge of organic practices, I have a basic three pronged approach that covers off at least 90% of the troubles I encounter.
The great mystery of gardening, to me, is how the bad bugs know where my good plants are. Take the most disgusting of all garden pests, tomato worms (hornworms) for example. I started planting tomatoes in my current garden about 5 years ago and until that time, I can confidently say that no tomatoes had been grown within 500 feet (maybe even 1000 feet!) of my garden for many many years. Yet somehow those thick putrid green tomato worms quickly found my plants and started munching away. I have no idea who told them and how they got there, but with the use of my three handy tools, I haven't seen them since.
Soapy Water, Neem Oil and a copy of Good Bug Bad Bug by Jessica Walliser will take you far in your fight against bad bugs. It is important to know that in the garden, all bugs aren’t bad. Experienced gardeners love bugs (as long as they’re the good kind) because they know beneficial insects are an effective natural solution to garden pests. Jessica's book has taught me a lot about who is who (good and bad) in my garden and it is a reference I frequently consult.
In the case of my tomato worms I have to admit, I didn't yet own a copy Good Bug Bad Bug. If I had I would have spared myself the gagging torture of hand picking off every tomato worm I found (something about the marshmallow squishy texture of hornworms makes me want to vomit). It was fully a season later that I bought the book and learned that my efforts of hand picking probably had less to do with my successful eradication than the fact that they had little white sacs hanging off them. I assumed the sacs where an army of baby hornworms in waiting, but in fact, they were the cocoons of beneficial parasitic wasps. The wasp larvae in these sacs kill the worms and grow into wasps who will lay eggs on future hornworms. I clearly have a good natural cycle going because I haven't had tomato worm trouble since.
Soapy water (an easy mix of your favorite dish soap and water) will kill 90% of bugs you find. Make sure that the bugs you have are not beneficial first and if not, you can either spray the pests with the solution or carry a cup full around the garden. As you encounter trouble makers, flick them off your plants and into the cup where they will perish.
Neem oil which is made from the seeds of the tropical neem tree is an all purpose organic pesticide. It repels insects, preventing a problem before it starts, as well as suppresses feeding and molting, interrupting their lifecycle. During the winter, I spray my indoor plants with a light mix of of Neem oil and soapy water as a preventative measure and in the summer I carry on outdoors as needed.
Year of practice and experimentation have taught me a lot, but I still have some mysteries....like how do the wasps find the hornworms? I have no idea.
Do you have any handy organic gardening tricks to share?
Image: Sarah Starkey/5 Fear-Conquering Tips For First Time Gardeners.

Ercol Bar Stool
I was told that milk powder could rid my tomato plants of this guy and his buddies...is he a tomato worm? I don't think he had any of those wonderful sounding wasp sacks.
if i spray soapy water on my tomato plant will it kill it??
How much soap/water do you mix? I'm probably making this more complicated than necessary but I'm very intrigued.
Thanks for the recommendation on Good Bug Bad Bug by Jessica Walliser. I recognize some (like tomato horn worms), but I was worried I might make a mistake about others, since I'm in charge of the veggie garden for the first time this year. I've had success in the past with both soapy water and neem oil on the rest of the garden. The other thing we're doing is companion planting to confuse or deter the bad bugs and attract the good ones.
I've tried everything with the aphids, but with no success!
It's my first year with a garden, so this is perfectly timed! I have lots to learn, and lament over, I'm sure.
Luckily, the bugs haven't found my little patch yet; but I'm prepared for once they do!
Thanks AT!
When I do soapy water - I use a 32 oz spray bottle, and put in about 2 tablespoons of dishsoap (not very scientifically, I might add. I just squeeze a bunch in.) Swish it around to mix it, and then spray those aphids until they are covered.
I have read that you don't want to use the dishsoaps that are advertised as 'degreasing' - I keep a bottle of Ivory dishsoap for garden use.
I would also avoid any of the antibacterial handsoaps for this. Soil contains a metropolis of good organisms that your plants need - when you use chemicals that kill these little helpers, you hurt your plants more than you help them.
How this works:
Insects breathe through their skin. Soap doesn't act as a poison to them, what you are doing is coating them with a thin membrane of soap - like that of a bubble - which suffocates the bugs. So you don't want to wave the spray around lightly, you want to get right to where the aphids are and soak them good!
Happy hunting!
Need a copy of Good Bug Bad Bug, stat! Thanks for the recommendation. So far my community plot seems ok but I have been waiting for the little buggers to make an appearance. I'm curious about the soapy water....it's really ok to spray it on tomato plants?
This is a bit of a separate issue...but do you have any thoughts about tree roach control? I don't have a fruit and vegetable garden, but I live in the South and we have 3 inch tree roaches here that get into my home. I would love to not spray, but I haven't found a way to keep them at bay, including natural sprays like peppermint oil blends and diatomaceous earth. Thanks!
Their gravid butterfy moms fly around to find your tomato plants to lay their eggs on them. The hatching hornworms find themselves on your tomato plants without effort. That begs the question of how flying insects zero in on the necessary plants from out of sight--maybe supersensitive smell?
@skoggins, are your tree roaches what we call garden roaches here, the ones that look just like house roaches except that they're pale green? Those are rarely seen here. Or, are your tree roaches what we call palmetto bugs here? They're gigantic, fly, and will outlast humanity. We keep them outdoors by sealing all the little openings in the exterior walls, especially around the doors, windows, and pipes. That also increases a home's energy efficiency.
We've got giant roaches here in Georgia too. They don't live in trees, they just live around outside. Sealing the openings helps, as does organic (green) perimeter bait. Inside, I like to put borax around near the baseboards, but my house is old so it slides right into the cracks and sits there, invisible but still working.
@California Child: Have you tried asking about that worm/grub over on gardenweb?
http://www.gardenweb.com/
Their pest forum is a great place for this type of thing...
http://forums.gardenweb.com/forums/pests/
Try the EcoSmart brand of pesticides. The indoor one I use works great to repel all sorts of insects and smells like cinnamon (because it's mainly made from essential oils).