Newbie with Cucumber Plant question

[TomGreenthumb]

Hello could someone please tell me what is wrong with my cucumber plants,the leafs have turned yellow and brown.I have included some pics Thanks

[img]https://i978.photobucket.com/albums/ae262/mickeydog1/IMG_0274.jpg[/img][/img][/url]


[img]https://i978.photobucket.com/albums/ae262/mickeydog1/IMG_0273.jpg[/img]

[img]https://i978.photobucket.com/albums/ae262/mickeydog1/IMG_0272.jpg[/img]

[img]https://i978.photobucket.com/albums/ae262/mickeydog1/IMG_0275.jpg[/img]

[Hydrogardener]

You might try this link.

https://learningstore.uwex.edu/pdf/A3801.pdf

[pensacola jim]

Hello could someone please tell me what is wrong with my cucumber plants,the leafs have turned yellow and brown.I have included some pics Thanks

[img]https://i978.photobucket.com/albums/ae262/mickeydog1/IMG_0274.jpg[/img][/img][/url]


[img]https://i978.photobucket.com/albums/ae262/mickeydog1/IMG_0273.jpg[/img]

[img]https://i978.photobucket.com/albums/ae262/mickeydog1/IMG_0272.jpg[/img]

[img]https://i978.photobucket.com/albums/ae262/mickeydog1/IMG_0275.jpg[/img]

It looks like powdery mildew to me from planting to close together

[Diane]

https://vegetablemdonline.ppath.cornell.edu/NewsArticles/Cuc_Downy_Mar06.html


There is a pic here that looks like your leaf.

[rainbowgardener]

From the pictures Diane posted, it might be downy mildew. Probably not powdery mildew, which is silvery and looks powdery or fuzzy when seen close up.

[Diane]

Tom, your corn looks good and I love your idea of chicken fence for climing.

[tedln]

My cucumber plants have always done that. It usually is the older leaves closest to the ground. As long as the plants keep putting out new growth that isn't affected, I don't worry about it. My plants always kept producing cucumbers on the new growth and an occasional cucumber on the old growth. I do grow very crowded where different plants are climbing all over each other and it may be a cause, but I don't think so. For me, it seems to start when the weather gets really hot. It may well be a fungal growth or mildew, but it has never affected the productivity of my plants. From your photos, it appears the cucumbers may not be getting enough sunlight. I grow mine on an A frame trellis in order for them to get unrestricted sunlight.

[img]https://i291.photobucket.com/albums/ll308/tedln/IMG_1703.jpg[/img]

Ted

[gixxerific]

My cucumbers have a bunch of death on the inside of the maze. Mainly older vines and the shaded ones. But they sure are not what you have, they are just losing out to the humongous outer leaves.

Looks fungal I couldn't tell you what, but have you thought about the milk treatment, Never used it just found out actually. Suppose to work, it could help, sure won't hurt.

Here is link from this site check it out. https://www.helpfulgardener.com/forum/viewtopic.php?t=983

Good luck, Dono

[Rambo 09]

My cucumber plants have always done that. It usually is the older leaves closest to the ground. As long as the plants keep putting out new growth that isn't affected, I don't worry about it. My plants always kept producing cucumbers on the new growth and an occasional cucumber on the old growth. I do grow very crowded where different plants are climbing all over each other and it may be a cause, but I don't think so. For me, it seems to start when the weather gets really hot. It may well be a fungal growth or mildew, but it has never affected the productivity of my plants. From your photos, it appears the cucumbers may not be getting enough sunlight. I grow mine on an A frame trellis in order for them to get unrestricted sunlight.

[img]https://i291.photobucket.com/albums/ll308/tedln/IMG_1703.jpg[/img]

Ted

you look like you are haveing a very sucsesful operation, I have always wanted to know but what do you do when you start to produce a cuc at the top of that thing, dose it even happen to you?

[Diane]

My cucumber plants have always done that. It usually is the older leaves closest to the ground. As long as the plants keep putting out new growth that isn't affected, I don't worry about it. My plants always kept producing cucumbers on the new growth and an occasional cucumber on the old growth. I do grow very crowded where different plants are climbing all over each other and it may be a cause, but I don't think so. For me, it seems to start when the weather gets really hot. It may well be a fungal growth or mildew, but it has never affected the productivity of my plants. From your photos, it appears the cucumbers may not be getting enough sunlight. I grow mine on an A frame trellis in order for them to get unrestricted sunlight.

[img]https://i291.photobucket.com/albums/ll308/tedln/IMG_1703.jpg[/img]

Ted

Very nice set up Ted. Your plants look wonderful.

[tedln]

Diane,

Thank You!

Rambo,

Yes, sometimes they will make it to the top of the trellis and produce cukes. You can't see it in the photo, but on the other end of the trellis; I have an aluminum step ladder hanging. Sometimes I have to stand on the ladder to pick a cuke. Normally, they simply grow up one side and down the other side.

Ted

[lottena]

Lamo question from a beginer

I just noticed new growth after having produced a bunch of cucumers- should I cut away the old dried brances?

[gixxerific]

I myself cut away anything looking sick or dead and dying. There is no reason in my mind to leave those items on the plant robbing nutrients for the healthy parts of the plant. But than again maybe I trim too much.

But plants like cuc's will do that, mine do. They have such big leaves they shade and thusly kill the inner leaves and stems. There could be more but I don't want to speculate.

Dono

[tedln]

If I believe there is evidence of disease on a leaf or part of a plant, I will normally remove it. If it seems to have turned brown or become weak due to natural processes, I leave it alone. Since it is the job of a leaf to produce the products that strengthen the entire plant, so long as it has some green in it; I think it is doing it's job.

Ted