Analysis of the Causes of Cucumber Plant Death and the Latest Control Measures
During the cultivation of cucumbers, the phenomenon of plant death often occurs, which brings huge losses to growers. So what causes cucumber plant death? How should it be prevented and controlled? Follow the editor to take a look at the detailed introduction below.
1. Fertilizer damage
When applying fertilizer, applying incompletely decomposed farmyard manure will release a large amount of heat during its decomposition, causing root scorching and plant death; or when the concentration of chemical fertilizer applied is relatively high, especially at the seedling stage when the root system has not yet spread out, applying concentrated fertilizer will cause its root system to die.
Control measures: Apply fully decomposed fertilizer. Farmyard manure and organic fertilizer must undergo sufficient fermentation and decomposition before application. When applying chemical fertilizer, pay attention to the concentration. It can be diluted with water and then applied by the flushing method.
2. Waterlogging and root rotting
During continuous rainy weather or weather that suddenly clears after rain, cucumbers will become deformed, and if this lasts too long, it will lead to plant death. In addition, root rotting at the seedling stage can also cause plant death. When the seedbed or the field after transplanting is watered too much at one time or the soil moisture is relatively high, the root system will rot, causing the aboveground parts to wilt until the plant dies.
Control measures: Pay attention to water management. During continuous rainy days or when it suddenly clears after rain, expose the plants to light gradually, and provide shading and water supplementation in time when wilting occurs. When watering, be careful not to use flood irrigation; the method of frequent light watering can be adopted.
3. Freezing damage
When cucumbers encounter a low temperature of minus 10 degrees, damage will occur. Many farmers often prepare to sow because winter temperatures have been relatively high for many years, and when low temperatures occur, they cannot defend in time, resulting in plant death from freezing damage.
Control measures: Take protective measures during low-temperature periods. Measures such as increasing light and reducing ventilation can raise the temperature inside the greenhouse and avoid freezing damage to the plants.
4. Pests and diseases
Many pests and diseases of cucumber can cause plant death. Plant death at the seedling stage is mostly caused by damping-off and Rhizoctonia rot, while after transplanting it is mostly caused by Fusarium wilt, Phytophthora blight, root rot, gummy stem blight, root-knot nematode disease, and so on.
Control methods: Select varieties with strong disease resistance. When diseased plants are found, pull them out in time and take them out of the field, then disinfect the diseased planting holes, and at the same time spray pesticides comprehensively for control.
The above is an introduction to the causes of cucumber plant death and control measures. We hope it can help you. If you want to learn more related knowledge, please stay tuned to us.