Cucumber vine and leaves problem
Cucumber None Given
Every year I have this problem with cucumbers, but usually it at least lets me have several cucumbers before it kills the plant. This year it kills cucumber vine already. I do not know what it is, it seems that something attacking the plan from root, since leaves are affected from bottom first and the problem moves. At first plan and its leaves look like they are not watered, and then leave drops and dries. Wine might continue to grow but very slowly.
Another problem is seems new, it is all plant leaves changes color to have many bright yellow-green spots. Tomatoes growing next to it are not affected.
Soil is mostly clay, but I plant the cucumbers in organic soil brought from Home Depot. Hopefully there is something to help this problem. My family loves cucumbers! Thank you for any advice.
Another problem is seems new, it is all plant leaves changes color to have many bright yellow-green spots. Tomatoes growing next to it are not affected.
Soil is mostly clay, but I plant the cucumbers in organic soil brought from Home Depot. Hopefully there is something to help this problem. My family loves cucumbers! Thank you for any advice.
Cucumber with drying leaves
cucumber vine drying from bottom, or random to say better, some leave in between dried leaves are ok
Cucumber with yellowing leaves
Cucumber drying from top
Yellowing leave and normal leave (two different plants)cucumber vine drying from bottom, or random to say better, some leave in between dried leaves are okCucumber Yellowing leave and normal leave (two different plants)
plant with yellowing leaves problem
Posted
by: Halyna
(1 point)
Posted: June 25, 2016
Answers
There are several issue going on with your plants. The yellow spots on the cucumber leaves (image 1) may be due bacteria, Pseudomonas syringae (angular leaf spot). The main symptoms are appearance of small, circular spots initially on leaves. This spots enlarge into angular to irregular, water-soaked areas at later stage.
It is minor disease and not effects the crop yield. Remove the infected leaves and burn them. Since bacteria spreads through splashing water avoid overhead application of water and leaf wetting.
Second issue may be fusarium wilt, a fungal disease caused by Fusarium oxysporum. The fungus is soil borne first infects the roots and then stem. The infected plant become stunted, wilt and die eventually. Generally symptoms appears on lateral vines and usually starts from the tip. To confirm the disease cut open the roots and stem to see brown discoloration of vascular tissue. Also you may see white fungal growth on this wilted vines.
Remove the infected plant and burn them. Avoid moving the soil to other part of garden. Next time grow available resistant varieties.
It is minor disease and not effects the crop yield. Remove the infected leaves and burn them. Since bacteria spreads through splashing water avoid overhead application of water and leaf wetting.
Second issue may be fusarium wilt, a fungal disease caused by Fusarium oxysporum. The fungus is soil borne first infects the roots and then stem. The infected plant become stunted, wilt and die eventually. Generally symptoms appears on lateral vines and usually starts from the tip. To confirm the disease cut open the roots and stem to see brown discoloration of vascular tissue. Also you may see white fungal growth on this wilted vines.
Remove the infected plant and burn them. Avoid moving the soil to other part of garden. Next time grow available resistant varieties.
Yellow spots due to Pseudomonas syringae
Posted
by: Dr. Ravishankar Narayana
(15 points)
Posted: June 26, 2016
Halyna commented,
Dr. Ravishankar Narayana, thank you for your reply. What can I do to fix this problem in the soil after I take out the sick plants? This is the only place I can use for gardening. Should I cover these land part with plastic to have sun kill all fungus? Thank you! almost 8 years ago.
Dr. Ravishankar Narayana, thank you for your reply. What can I do to fix this problem in the soil after I take out the sick plants? This is the only place I can use for gardening. Should I cover these land part with plastic to have sun kill all fungus? Thank you! almost 8 years ago.
Dr. Ravishankar Narayana commented,
Yes you can sterile the soil using black plastic mulches. Dig deeply the infected area and cover with plastic mulch (http://homeguides.sfgate.com/use-blac...). Make sure you sterile all the equipments after this process. After soil sterilization you can apply biocontrol agents like rhizobacteria and plant growth-promoting yeasts to suppress the remaining fusarium in soil. almost 8 years ago.
Yes you can sterile the soil using black plastic mulches. Dig deeply the infected area and cover with plastic mulch (http://homeguides.sfgate.com/use-blac...). Make sure you sterile all the equipments after this process. After soil sterilization you can apply biocontrol agents like rhizobacteria and plant growth-promoting yeasts to suppress the remaining fusarium in soil. almost 8 years ago.
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Hi Halyna, the pictures are very bright. Can you please upload new ones with less light. Thanks almost 8 years ago.
Dr. Ravi Narayana, I provided 4 more pictures, hopefully they will help. almost 8 years ago.