Bean diseases

**camprn** 4/26/2014, 4:31 pm

http://learningstore.uwex.edu/assets/pdfs/A3374.PDF

yolos 4/26/2014, 8:12 pm

Thanks Camprn - that was an excellent PDF on Bean Diseases. I have saved it and hope I never have to use it. Wish it had more discussion of control of the various diseases (ie fungicides etc) but this should help to identify the disease. They did give a lot of control information about good practices, rotation, etc.

Marc Iverson 4/26/2014, 9:54 pm

Thanks for the link. That's very good.

GloriaG 4/26/2014, 11:03 pm

That's an impressive guide.
I've also downloaded it. Thanks for posting it.
Gloria

**sanderson** 4/27/2014, 3:50 am

I bookmarked this link.

**AtlantaMarie** 4/27/2014, 8:07 am

Downloaded! Thanks, Camp!

**sanderson** 6/5/2015, 5:18 pm

Something new this year. White freckles. I looked in the link posted above but didn't see it. The beans are fine. Bean diseases Bean_r10

**Turan** 6/5/2015, 5:51 pm

That looks like insect damage. Spider mite probably.
http://www.ipm.ucdavis.edu/PMG/T/I-AC-TSPP-CD.125.html
Here is Planet Natural on controlling them http://www.planetnatural.com/pest-problem-solver/houseplant-pests/spider-mite-control/

**camprn** 6/5/2015, 6:40 pm

+1 What Turan said.

**sanderson** 6/5/2015, 6:53 pm

I used the insect loupe and couldn't see any. But it is getting that time of year! I'll go ahead and treat as-though.

CitizenKate 6/6/2015, 10:05 am

Also looks similar to some powdery mildew I saw last year on my tomatoes. It was very destructive to everything it came into contact with, even the weeds. The yellow/brown spots were the first thing I saw, then the leaves started getting some grayish-white dusty substance all over them - hence the term "powdery mildew" I suppose. Are beans susceptible to that? I used copper fungicide to control it.

Update: I happened to see campern's link to the bean diseases pdf, and I probably should have looked at that before posting. Beans can get powdery mildew, but it has a different appearance on bean plants apparently. I defer to those with more expertise! jocolor

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