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News and updates from the statewide UC Master Gardener Program office.
by Kathy H Keller
on June 11, 2021 at 2:12 PM
Thank you for this informative article. As you mention, nicotine, as found in tobacco, can and has been used as a pesticide - it is a neurotoxin to insects and humans. Nicotine solutions have been marketed for commercial use, so it's easy to see how someone might seek to elute it from cigarette tobacco and/or cigarette butts as a homemade concoction. Problem is, nicotine is easily absorbed through the skin, as well as via inhalation (in smoke or as an aerosol). So, as in this case, homemade does not equal safe. As a clinical toxicologist who has managed patients poisoned with nicotine solutions, this practice is potentially life-threatening and should be avoided.
by Patti Sue Ogletree
on June 21, 2021 at 6:14 PM
Wow. This is an eye opener. good information. Interesting.  
Thanks for publishing.
by Jane Hirt
on June 23, 2021 at 11:39 PM
I have been taking my bath water which contains soap and shampoo/conditioners and pouring it on the grass in an attempt to save my small lawn. It looks like it is not helping-grass is dying. Curious to get comments from others.
by Katherine S Barg
on July 2, 2021 at 8:16 AM
The insecticidal soap I make on my own for my roses has been phenomenal! It kills the aphids, the roses look great and are blooming like crazy. I think you have to be careful with articles like this - lots of good points but there's more to the story.
by Wing Sheung Mok
on July 17, 2021 at 9:59 AM
Good to know. More research is needed.
by Dee Coggeshall
on July 30, 2021 at 9:17 AM
Very interesting. Too many people just want chemicals to solve their gardening issues. Everyone needs to share this kind of info.
by Robert James Archer
on August 12, 2021 at 12:31 AM
Excellent and informative article on FIFRA regulation and improper pesticide concoctions.
by Jonathan G Draper 2014
on August 30, 2021 at 1:46 PM
More to the story: Anecdotal information, from one source, concerning one application, with no control, with no description of ingredients or proportions, should not trump science.
by Jennie
on June 4, 2022 at 6:14 AM
Can u use dish soap/ vinegar& water mixture to kill bedbugs?
by Gerald
on August 8, 2022 at 10:56 AM
Hahaha! is this some kind of an article to promote commercial products?  
because this one works 100% !!! Killing aphids and ants  
4 tiny drops of dishwashing liquid  
1 spoon of vinegar  
1 litre of water  
Or... boil an onion get 1 cup and 8 cups of water  
You may want to add a drops of dishwashing and oil.
by Roy Wilkins
on May 27, 2023 at 7:39 AM
Brought to you by the National association of pesticide retailers
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