Yellow leaves on cucumbers - now every garden owner should act quickly. Because it does not always have to be diseases and pests in cucumbers, but incorrect care or lack of nutrients can also be the cause. What is hidden behind yellow leaves? How can they be avoided? What to do?

What Causes Yellow Leaves on Cucumbers?

Whether outdoor cucumbers or greenhouse cucumbers - one of the most common causes of yellow leaves on cucumbers is care errors. From airing to watering to fertilizing - often it's just little things that cucumber plants react to with yellow leaves. But the following cucumber diseases and pests can also be recognized first by yellow leaves.

  • Cucumber powdery mildew and downy mildew
  • cucumber mosaic virus
  • aphids

Cucumber powdery mildew and downy mildew The pathogen in both variants is a fungus.
With cucumber mosaic virus, the leaf edges become wilted and light yellow. Remove infested cucumber plants immediately if leaf veins turn yellow from the outside

This is an effective way to avoid yellow leaves on cucumbers

In general, yellow leaves are more a sign of too much water. Simply water more sparingly and spoil cucumber plants with warm rainwater instead of cold water. Water mostly the root area and rarely the green. Feed cucumbers regularly but moderately with horse manure or organic green manure during the growing season. This promotes their resistance and prevents yellow leaves from magnesium deficiency.

Prevention is better than combat

Fighting diseases and pests on cucumbers is often not even possible with chemicals, depending on the infestation. In addition, you should think carefully about food, whether you actually use poison. Prevention is always better for people and plants:

When planting cucumbers, keep sufficient planting distance. Because dense green leaves too little air to the leaves. Most fungi and viruses spread in permanent wet and damp conditions.
Grow resistant F1 hybrid cucumber varieties. Or breed more resistant cucumbers yourself by grafting cucumbers.

Observe crop rotation and plant cucumbers at the earliest after 4 years in the same location.
Aphids are the main culprit in transmitting cucumber diseases. The targeted use of beneficial insects in the greenhouse and garden offers the best solution and is worthwhile.

With these effective measures, you can not only permanently prevent yellow leaves on cucumbers, but also prevent cucumber diseases and pests at an early stage.

tips and tricks

Do not fertilize newly acquired young plants immediately. As a rule, the cucumber plants are pre-fertilized and have been supplied with all the important nutrients by the grower.

Category:

Vegetable garden