What causes pickling cucumbers to yellow just as they are beginning to form?
If the yellow cucumbers are also staying small, your cucumbers are probably not being pollinated effectively. This article will help: https://www.gardeningknowhow.com/edible/vegetables/cucumber/hand-pollinating-cucumbers.htm
What causes cucumbers to dry up and turn brown? This is happening immediately after the bloom has produced a cucumber.
If the cucumbers are very small when they fall off, they are likely unpollinated and will never grow larger. See this article for advice on fixing the problem:
https://www.gardeningknowhow.com/edible/vegetables/cucumber/hand-pollinating-cucumbers.htm
My mum planted mini cucumber plants. We've had a few cucumbers off this plant, but now it's starting to give courgettes off the same plant. We're a little confused as to why this may be happening.
This would not be possible for a cucumber plant to produce 2 different fruit types.
Perhaps a 2nd volunteer plant came up in the same area of the garden, this being the zucchini plant.
I picked a tomato off a cucumber plant. How did that happen?
A tomato would not grow on a cucumber plant. Perhaps you have two plants tangled up- since cucumbers will climb and twine around other plants, it could be difficult to tell which plant is which.
What's wrong with my cucumber plant, and what can I do to cure it? I am zone 10a, in SW Florida, growing in containers and trying to be organic (if I can). Hope you can help, thank you!
Though Cucumbers can be effected by some diseases and have issues with pests, I believe this could be simply could be caused by overhead watering or excess moisture issues. The bacterium Pseudomonas syringae is caused when water sits on the leaves or splashes unto the leaves.
The yellow spots should have little effect on the crop of Cucumbers.
Avoid overhead watering and try to water early enough in the day so that the leaves dry before the end of the day.
https://www.gardeningknowhow.com/edible/vegetables/cucumber/cucumber-mosaic-virus.htm
https://www.gardeningknowhow.com/edible/vegetables/cucumber/bacterial-wilt-cucumbers.htm
We are cultivating seedless cucumbers in Cocopeat Growbags under polyhouses, as the soil is heavily infested with root knot nematodes. We had noticed that our plants have started increasingly showing abnormal growth (it is increasing/spreading), photos attached. We are noticing that the leaves become dark green and start bunching on top together. We have tried treating with excess boron and micro-nutrients, but the problem is spreading. We have shown it to local experts but they have been unable to identify the issue. Can someone advise as to whether the issue is a nutrient problem or some disease??
The main causes of growth distortions in plants are viruses, herbicide/toxin damage, and specific nutrient deficiencies. There are several viruses that affect cucumbers, listed in this article:
http://vegetablemdonline.ppath.cornell.edu/factsheets/Viruses_Cucurbits.htm
Check whether anyone around you could be spraying herbicides or other toxic chemicals.
You have probably already looked into or treated for zinc or copper deficiency, but if not, those are possibilities:
http://agropedia.iitk.ac.in/content/deficiency-symptoms-nutrients-and-their-remedies-cucumber
It had nice leaves. Three days later, it's shriveling up and dying.
Sudden shriveling of leaves can be a sign of bacterial wilt:
https://www.gardeningknowhow.com/edible/vegetables/cucumber/bacterial-wilt-cucumbers.htm
Here are some other possible causes:
http://www.extension.umn.edu/garden/diagnose/plant/vegetable/cucumber/leaveswilting.html
Or, a pest might have cut or damaged the stem near the soil. Check the base of the stem.