newshoot3
Full Member
Posts: 19
Joined: Sun Mar 15, 2009 10:25 pm
Location: Cocoa, FL

Spider mite treatment

I have 5 Hibiscus bushes that are all dropping their leaves at alarming rates due to a wicked spider mite infestation. :cry: My grandmother mentioned mixing something like mouthwash, detergent, and water to spray them with. Anyone else heard of this combo? I'm looking for some specifics so I can mix it properly and not harm the plants.

Thanks for the help! :D

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Kisal
Mod Emeritus
Posts: 7648
Joined: Tue Jun 24, 2008 5:04 am
Location: Oregon

You can use something like neem oil, or you can use a soap solution. I have not used neem oil, so I can't really offer advice about that, but the soap solution does work. This article from Oregon State University has pretty good information. It specifies dishwashing liquid, but I once damaged a tree by using detergent. These days, I prefer to use a good organic soap. Here's a link to the article:

https://extension.oregonstate.edu/catalog/pdf/ec/ec1586.pdf

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