Causes and Control measures of Flower and Fruit drop of Pumpkin

Pumpkins often encounter the problem of falling flowers and fruits in the process of planting, which seriously affects the yield of pumpkins and brings huge losses to farmers, so what is the cause of pumpkin falling flowers and fruits? What should I do? Let's learn more about the details with the editor.

Reasons for falling flowers and fruits

1. Early maturing pumpkin varieties, female flowers bloom first, without male flowers pollination, female and male florescence will not occur, resulting in normal pollination.

2. Early flowering, low temperature, poor development of female flowers, slow growth of pollen tube and poor pollination.

3. Excessive application of nitrogen fertilizer or continuous rainy days resulted in green body weight of pumpkin, exuberant growth of stems and leaves than fruit, nutrient guarantee during flowering and fruiting period, resulting in falling flowers and fruits.

4. Pumpkins are cross-pollinated plants. If they encounter continuous overcast and rainy weather during flowering, they can not pollinate normally, resulting in falling flowers and fruits.

5. Excessive planting density leads to closeness in the field and poor permeability, which is also one of the reasons for falling flowers and fruits.

Prevention and cure method

1. Regulating vegetative growth and reproductive growth

Vegetative growth is too prosperous, when the main vine extends to 12 nodes, there are still no female flowers, it is necessary to weaken the apical dominance to promote the transformation from vegetative growth to reproductive growth. There are many methods, one is to change the head, the main vine does not result, you can cut off the main vine in front of the leaf nodes with seed vines in the lowest part of the main vine forward, and change the main vines as close to the roots as possible, or carry out a deeper ploughing and break the roots.

2. Thinning flowers and fruits

Because there are too many female flowers before you drop flowers and fruits, you can properly remove some of the flowers and fruits.

3. Artificial pollination

Artificial pollination is easy to carry out at 8-10:00 in the morning, when the pollen has matured, the strong male flowers will be removed, the petals will be removed, and the anthers will be gently smeared on the female style. At this time, mucus will be secreted on the stigma, which will stick the male pollen and complete the pollination. On the other hand, a male flower can pollinate 3 female flowers in a row. After pollination, there should be a leaf cover to prevent Rain Water from washing away the pollen, or it can also be pollinated by bees.

4. Reasonable close planting

In order to avoid canopy in the field, it is appropriate to plant 8-1200 plants per mu reasonably. Early-maturing varieties can be densely planted properly, while late-maturing varieties can be sparsely planted properly, which is beneficial to improve ventilation and light, increase fruit setting rate, and prevent diseases at the same time.

The above is the introduction of the reasons and control measures of pumpkin falling flowers and fruits. I hope it can help you. If you want to know more about it, please follow us.