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Couple of questions. (bug ID and possible disease)

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Couple of questions. (bug ID and possible disease)

Post  s1rGr1nG0 on 10/28/2013, 1:44 pm

Checked the garden this morning before work and saw this little guy crawling around on one of our bush bean plants. Is it a variant of lady bug? Is it a good guy?

EDIT: A quick google search shows this to be a Cucumber Beetle. It is considered a pest. We have 2-3 cucumber plants and 1 squash now but none of them have any fruit on them. I will txt my wife and have her deal with the little pest now.



Also, I noticed  our squash plant has a couple leaves that are turning grey/white. There is another leaf that it seems to be starting on. It begins along the veins and then spreads to the whole leaf. I tried to see if I could rub it off but it seems to be "inside" the leaf and not on the surface. What is it?



Last edited by s1rGr1nG0 on 10/28/2013, 1:52 pm; edited 1 time in total
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Re: Couple of questions. (bug ID and possible disease)

Post  donnainzone5 on 10/28/2013, 1:49 pm

I think it's a bad guy, but someone more knowledgeable is sure to chime in with the correct information.
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Re: Couple of questions. (bug ID and possible disease)

Post  s1rGr1nG0 on 10/28/2013, 1:53 pm

Thanks Donna!
Yeah, I edited my original post to include my google search results. I just sent the wife on a hunting mission to the garden while Im at work! Very Happy
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Re: Couple of questions. (bug ID and possible disease)

Post  sanderson on 10/28/2013, 2:22 pm

For photos:

https://www.google.com/search?q=texas+cucumber+beetle&client=firefox-a&hs=yzs&rls=org.mozilla:en-US:official&tbm=isch&tbo=u&source=univ&sa=X&ei=6apuUoDJI8bKiwL89YDABQ&ved=0CEsQsAQ&biw=1024&bih=630
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Re: Couple of questions. (bug ID and possible disease)

Post  s1rGr1nG0 on 10/28/2013, 2:26 pm

@sanderson wrote:For photos:

https://www.google.com/search?q=texas+cucumber+beetle&client=firefox-a&hs=yzs&rls=org.mozilla:en-US:official&tbm=isch&tbo=u&source=univ&sa=X&ei=6apuUoDJI8bKiwL89YDABQ&ved=0CEsQsAQ&biw=1024&bih=630
Yup! I did the same thing. That's how I found the info I did.
I also looked up squash leaf color and I'm beginning to wonder if the plants are in fact healthy and the leaf color change is natural. Apparently some squash will have silvery leaves. As I mentioned before our leaves don't have anything on the surface. There is now powdery mildew or fungus growing on them. It appears that the actual color of the leaves are changing and I'm leaning toward our squash being of a variety that does this. They seem healthy otherwise.
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Re: Couple of questions. (bug ID and possible disease)

Post  Marc Iverson on 10/28/2013, 4:09 pm

Cucumber beetles are good at making a quick escape. Often they simply drop off the leaf or stem and then hide in the lower part of the plant or run around in the soil if you get near. A plate held underneath can help catch them. Otherwise I've found little luck in snatching them by hand and have just had to spray from a distance unless I'm going to lose them entirely.

They spread disease almost instantly, eat a lot of the vital parts of flowers, and multiply quickly, so they're serious business that demands immediate attention. They killed something like 20 out of the two dozen cucumber plants I got this year.
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Re: Couple of questions. (bug ID and possible disease)

Post  s1rGr1nG0 on 10/28/2013, 4:21 pm

Great! Thanks for the info Marc. I will search leaf by leaf until I find it. I know the name is cucumber or squash beetle but it was running around on our bush beans. Do they eat beans as well?
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Re: Couple of questions. (bug ID and possible disease)

Post  camprn on 10/28/2013, 4:21 pm

I have had good luck with bugguide.net for insect ID.Cucumber beetle, either striped or spotted are vectores for multiple plant diseases. Also, my dustbuster came in handy for collecting cucumber beetles.

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Re: Couple of questions. (bug ID and possible disease)

Post  Marc Iverson on 10/28/2013, 11:07 pm

@s1rGr1nG0 wrote:Great! Thanks for the info Marc. I will search leaf by leaf until I find it. I know the name is cucumber or squash beetle but it was running around on our bush beans. Do they eat beans as well?
I don't know, but I found two on my beans in another garden location, and it was coincident with some disease and holes in my beans that I had never seen before. I think I may have killed the only two that were there, because both disease and holes abruptly stopped after their timely demise.

That's not enough to prove anything, just anecdote. Just saying I wouldn't be surprised.
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Re: Couple of questions. (bug ID and possible disease)

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