What causes rotten tips on cucumbers, and how should they be prevented and treated?

When cucumbers are cultivated in greenhouses in winter and spring, especially in winter, because temperatures are relatively low, the root absorption capacity of cucumbers weakens, making rotten tips highly likely to occur, which severely hinders cucumber production. So what is going on with rotten tips on cucumbers? Is there any way to solve it? Come and learn about it with the editor.

I. Causes of rotten tips on cucumbers

There are many causes of rotten tips on cucumbers, most of which are caused by improper management and diseases. Among the management methods are high planting density, continuous cropping for many years, excessive application of nitrogen fertilizer, insufficiently decomposed organic fertilizer, poor ventilation, high humidity, poor drainage, and insufficient light. The main diseases are scab, gummy stem blight, and bacterial marginal blight. Their symptoms differ, but they all share one thing in common, which is that they cause rotten tips on cucumbers. Therefore, for the causes of rotten tips on cucumbers, we should adopt targeted prevention and treatment measures to promote robust cucumber growth and improve yield and quality.

II. Prevention and treatment methods

1. Protect and strengthen the vines

After cucumber seedlings are planted, a new high-lipid film should be sprayed promptly. This can effectively prevent aboveground moisture from evaporating, keep the seedling water body from transpiring, isolate the damage of pests and diseases, shorten the seedling recovery period, and promote strong seedlings. After seedling recovery, temperature and water control measures can be used to encourage roots to grow downward, enhance the root absorption capacity, and cultivate strong seedlings.

2. Hoeing

After the film is covered, the two sides of the plastic mulch can be lifted to near the main stem, and then hoeing can be carried out multiple times in the greenhouse. Hoeing should go from shallow to deep, and the shallow roots should be intentionally cut off to encourage them to grow deeper, enhancing the root absorption capacity and the plant's cold resistance. If deep hoeing is done from the start, it will damage the roots and not only fail to encourage the roots to grow downward, but may also cause plant death.

3. Spraying medicine

In the early stage of rotten tips on cucumbers, while spraying growth regulators and nutrient solution, some pesticide fungicides and new high-lipid film should also be added to prevent pathogens from directly invading through wounds and to prevent the spread of pathogens from causing greater losses.

4. Micro-fertilizer root drenching

At the appropriate time, in addition to root application agent plus micro-fertilizer root drenching, this can induce the plant's absorption, digestion, and release of nitrogen, phosphorus, potassium, and various trace elements in the soil, enhance the positive energy of fruit development, and improve cold resistance.

The above is an introduction to the causes of rotten tips on cucumbers and prevention and treatment methods. We hope it can help you. To learn more related knowledge, please keep following us.