My Chinese long beans looks perfectly healthy and is growing fine until I get closer. Chinese long beans ( photo / image / picture from KK Ng's Garden ) When I get closer, I noticed that all of its leaves have tiny white spots on it. Closer look ( photo / image / picture from KK Ng's Garden ) The stems that is holding the leaves is also rotting. ??? ( photo / image / picture from KK Ng's Garden ) The rotting part is not on all leaves stems but most of it. Yucks!!! ( photo / image / picture from KK Ng's Garden ) I split open the rotting stem and could not see any bugs or creepy crawlies even with my glasses on! The inside. ( photo / image / picture from KK Ng's Garden ) The vines have no problem and the plants are not flowering. I'm LOST!!! HELP!!!
Maybe bean rust? Look here and see if photos match at the bottom of the page http://www.colostate.edu/Orgs/Vegnet/vegnet/beans.html Here was another site with photos of common bean diseases in Midwest http://www.extension.umn.edu/distribution/horticulture/dg6144.html[/url]
Sorry I had computer and connection problem for the last few days. Mart, it is not on the bean but on the part between the leaves and the main vine, I think it is called the Peitole. The bean plants are not flowering too. Jewell, thanks for the links but I don't think it is rust. Out of desperation for not being able to get connected into the net, I decided to cut off all the infected leaves with the rotting in the petiole and hope for the best. Keeping my fingers crossed that I did right.
Glad it is not rust. I like the idea of removing the leaves. Sometimes that removes the problem. Hope your beans continue to grow and do well.
I am thinking it looks like a fungus, too. treat it as such. If you can cut that spot out, do so, and maybe spray with a fungicide if you can.
The problem seems to be at rest for the moment after I removed all the badly affected leaves. Hope to see some flowers soon and the weather is getting cooler or should I say not that extreme hot.
Today as usual in the morning, I was with my plants to start off the day and I noticed that there is flower on the bean plants. I think it's ok..... ( photo / image / picture from KK Ng's Garden ) Closer look ... hurray there is a tiny bean growing too. The leaves are still the same and the plant is growing well.
KK, Do you have aphids? I normally (except for Peonies) don't find ants on my plants unless there are aphids colonizing on it. The ants "milk" and protect the aphids.
Carolyn, I had aphids on my tomatoes and they are history .... I hope . I checked the bean plants thoroughly with a magnifying glass and I did not find any of those pesky little destructive critters. These ants are really tiny.
Kk I had this same issue with my zucs this year. I think it's a fungus. We had ridiculous amounts of rain and I fought powdery mildew like crazy along with pickle worms. Evil caterpillars. I think they chewed holes to let the fungus in. . It was a crazy year for fungus. I hope your beans make it!!
Thanks Ren2012, I still have no idea what it was but I did got a harvest from the plants. The weather here was just exactly opposite of what you had. Weird eh!