Reasons for Low Yield of Autumn Cucumbers and Control Methods

After the Beginning of Autumn, although temperatures in many places are still a bit high, the season is gradually entering autumn. Autumn is both the harvest season and a good time for growing vegetables. Cucumber is one of them; its growth cycle is relatively short, and after planting it can quickly be brought to market for sale. But many growers get extremely low yields of autumn cucumbers. What causes this? Come and learn about it with the editor.

1. Variety Degeneration

If a single cucumber variety is grown continuously over the long term, it will inevitably lead to variety degeneration, which in turn reduces both yield and quality in summer; this is unavoidable. Another point is saving one's own seed; attention must be paid to the method when planting, as this can also cause variety degeneration. In addition, some farmers who like to follow trends should, when planting, check whether the local environment is suitable for growing it; otherwise the yield will also be extremely low.

Solution: Select seeds reasonably. Choose varieties suited to the local climate and environment, and also take factors such as market demand into consideration. It is recommended to choose short-day varieties that are heat-resistant in the early stage, cold-resistant in the later stage, and highly resistant to pests and diseases.

2. Excessive Vegetative Growth

Excessive vegetative growth is a phenomenon that occurs during the growth of many vegetables. It is mainly caused by farmers applying too much nitrogen fertilizer during planting or by unreasonable planting density. These lead to problems such as reduced flower bud differentiation in cucumbers, flower buds dropping easily, poor root growth and development, and low yield.

Solution: Reasonably control plant density according to the plant quality of the cucumbers. If growing in a greenhouse, also pay attention to ventilation. If excessive vegetative growth occurs, chemicals can be used to control it. When the cucumber has grown 3 to 4 true leaves, spray a 1200-fold ethephon ripening agent, which can inhibit excessive vine growth and increase female flowers.

3. Severe Pests and Diseases

Pests and diseases are a condition that every crop grower fears; a slight oversight can cause large areas of crops to die. Because autumn cucumbers grow in a hot and rainy season, special attention must be paid to attacks by pests and diseases. In addition, many pests and diseases can also cause a reduction in autumn cucumbers.

Control methods: Pest and disease outbreaks should be mainly prevented. Common diseases include phytophthora blight, gray mold, and downy mildew. When they occur, spray chemicals promptly for control. Severely affected plants should be pulled out promptly and destroyed in a centralized manner. Common pests include aphids, thrips, and tobacco whiteflies. Yellow sticky boards can be hung in the field to trap insects, or chemical pesticides can be used to kill them; 10% imidacloprid can be selected for spraying.

  The above is an introduction to the reasons for low yield of autumn cucumbers and the control methods. We hope it can help you. If you want to learn more related knowledge, please follow us.