Causes of Wrinkled Passion Fruit and the Latest Detailed Control Methods

Passion fruit contains over a hundred kinds of aromatic substances and allows you to taste the aromas of other fruits, which is why it has earned the title of "king of fruit juice." Yet during the cultivation of passion fruit, the phenomenon of wrinkled fruit is often encountered. So what causes wrinkled passion fruit? And how should it be prevented? Let's find out together.

Causes of Wrinkled Passion Fruit

1. Disease causes

When passion fruit is affected by diseases such as viral disease, Phytophthora blight, and anthracnose, it leads to an imbalance in the tree's nutrition and the appearance of wrinkled fruit.

2. Pest causes

When passion fruit is harmed by fruit flies, thrips, stink bugs, snails, and other pests, it causes physiological and metabolic disorders and nutritional imbalance, resulting in wrinkled fruit.

3. Nutritional imbalance

Excess nitrogen and phosphorus, along with insufficient supply of trace elements such as boron and magnesium, leads to disordered physiological metabolism, nutritional imbalance, incomplete floral organ development, or blocked transport; after fertilization of the fruit, an imbalance in nutrient supply leads to wrinkled fruit.

4. Climatic factors

After the fruit is fertilized, sudden shifts between cold and hot temperatures can also cause an imbalance in physiological metabolism, thereby leading to wrinkled fruit.

Preventive Measures

1. Apply more organic fertilizer

Passion fruit prefers an environment high in nitrogen, potassium, and magnesium. According to its growth characteristics, you can choose elemental organic fertilizer as the base fertilizer, and choose multi-element compound fertilizer as both base fertilizer and top dressing. During the seedling stage, nitrogen fertilizer should dominate; after the vines reach the trellis, potassium and magnesium should dominate. Do not apply phosphorus fertilizer alone, so as to avoid poor fruit growth.

2. Foliar fertilizer

After the seedlings reach the trellis, spray foliar fertilizer once every 20-30 days in combination with disease control. The foliar fertilizer should be mainly boron fertilizer; it is recommended to spray a 0.3% borax solution, using about 1 jin of borax per mu each time, mixed with water in the proper ratio and sprayed.

3. Do a good job of pest and disease control

Pest and disease control must be taken seriously, especially the control of viral disease and fruit flies. For viral disease control, choose virus-free seedlings when planting, and during the seedling stage spray pesticide once a week to control aphids, thrips, and other vector pests. For fruit flies, rely on physical control methods, such as hanging yellow sticky boards, sugar-vinegar trapping, and sex pheromone lure trapping.

The above is an introduction to the causes of wrinkled passion fruit and the control methods. We hope it can help you. If you want to learn more related knowledge, please stay tuned to us.