Cece99
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Stupid Cucumber Beetles

So, I've discovered I am the angry owner of bean plants infested with cucumber beetles :cry: HELP! How do I get rid of these and try to save my beans?

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applestar
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I don't think cucumber beetles go after beans... Maybe Mexican Bean Beetles? ...unfortunately I have no experience with them to adivise.

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rainbowgardener
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Here's a nice little article about the Mexican Bean beetle, with a picture so you can see if that's what you have. It also has suggestions for controlling them, most of which you would have had to do before you got infested.

What you can try now is diatomaceous earth, handpicking them and dropping in soapy water, vacuuming them off the plant with shop vac, starch spray (clogs up their spiracles so they can't breathe). When the article says "as a last resort biological insecticides" that is pyrethrins and rotenone. They are plant derived but are general insecticides that can also harm beneficial insects.


https://www.planetnatural.com/site/xdpy/kb/mexican-bean-beetle.html
Twitter account I manage for local Sierra Club: https://twitter.com/CherokeeGroupSC Facebook page I manage for them: https://www.facebook.com/groups/65310596576/ Come and find me and lots of great information, inspiration

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gixxerific
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So these are Mexican bean beetles?
[img]https://i272.photobucket.com/albums/jj185/gixxerific/Gardening/DSC03938.jpg[/img]
[img]https://i272.photobucket.com/albums/jj185/gixxerific/Gardening/DSC03858.jpg[/img]

And these are striped cucumber beetles. Notice one is yellow and one is red. Both of these are ALL OVER THE FRIGGING PLACE here!!!!!!!!!!!!!!!!! :evil:

[img]https://i272.photobucket.com/albums/jj185/gixxerific/Gardening/DSC03935.jpg[/img]
[img]https://i272.photobucket.com/albums/jj185/gixxerific/Gardening/DSC03937.jpg[/img]

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applestar
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Nope! I'm pretty sure they're all 3 cucumber beetles. Is the spotted one eating the bean leaf or just sitting on it? ... and what are the striped ones on? They're not curcurbit leaves. Are those damage being made by the beetles?

Could they just be lost? I saw one on the corn (pumpkin and gourd sprawling underneath) and was able to C&S (catch&squish). It wasn't eating the corn, just on its way to dinner and got blown off course to meet its demise. :twisted:

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gixxerific
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Sorry for the detour Cece99.

So Apple you are saying the first 2 pics are cucumber beetles as well as the 2nd two pics?

These are not beans it is something in my front flower garden but they are both all over it. The spotted ones are everywhere (front and back) where the striped ones are mainly up here. I'm not even sure what plant this is, heck it might even be a weed. The thing is about 5 foot tall no flowers yet and it's starting to seed. But I'm saving it for now a a trap crop.

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rainbowgardener
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but all the suggestions I mentioned for the mexican bean beetles apply to other beetles as well, including the cucumber ones...
Twitter account I manage for local Sierra Club: https://twitter.com/CherokeeGroupSC Facebook page I manage for them: https://www.facebook.com/groups/65310596576/ Come and find me and lots of great information, inspiration

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