The most common cucumber disease is powdery mildew. In addition, these plants also infect infections such as mosaic and root rot. Each of them has its own methods of struggle, as well as preventive. Let's consider them in more detail.
Root rot is a dangerous disease caused by a fungus. Infected plants begin to rot around the root of the neck. As a result of this, the lashes die. This disease of cucumber, like most infections, is easier to prevent than to treat later. Most often, plants are affected as a result of waterlogged soil and air, for example, in greenhouses, as well as during sudden changes in temperature. Therefore, do not
water the cucumbers too often. In addition, if cooling is expected in the spring, plants are covered with a film in the open ground.
If such a disease of the cucumber, as root rot, nevertheless manifested itself, at its first signs, the stem is buried in the ground by two internodes from the root. And, of course, you need to take care of such plants very carefully: weeding, loosening, feeding. Strong cucumbers will better resist the disease. This is one of the main preventive measures. In addition, you should not leave last year's tops in the garden. It needs to be raked and burned.
Another disease of the cucumber - powdery mildew - affects the leaves of plants.
At the first stage, a characteristic white coating appears on their surface. Then the leaf blades begin to darken and eventually die off. The disease is caused in the same way as in the first case, a special kind of fungus. The development of this infection contributes to increased humidity and insufficiently careful care of plants.
To combat powdery mildew, a 0, 10% suspension of Figon or Karatan is used. Processing is carried out as plaque appears. However, the bushes can be sprayed no more than once a week. Diseases of cucumbers in the greenhouse can manifest more sharply than in the open ground, since the most favorable microclimate is created here. Therefore, with this method of growing plants, they need to pay more attention.
Such a disease of cucumbers as a mosaic also occurs quite often. It relates to viral. It is also an unpleasant phenomenon that can lead to a significant reduction in yield. Most often, plants are infected with three types of this infection: yellow, white and green. Characteristic spots appear on the leaves and fruits of the plant, after which the tissues begin to rot. At the first signs of infection, water should be watered with 0.1% potassium permanganate. It is also good to spray cucumbers with formalin (5%).
You can see the diseases of cucumbers in pictures on this page. In addition to the above, there are other, no less unpleasant infections. In order to minimize the risk of infection, it is necessary to observe agricultural technology: feed, weed, loosen plants on time, and also prevent thickening. In this case, the cucumbers will remain healthy, and you will get just an excellent crop both in the greenhouse and in the open ground.