Latest Summary of Common Diseases of Passion Fruit and Their Control Methods
Passion fruit has been a fairly popular fruit in recent years. It has high nutritional value and a unique flavor, and is deeply loved by consumers. Relatively speaking, its price is also higher, and its cultivation profit is high, so many people need to grow it. But many novice growers, when they first come into contact with it, do not know much about its habits and have little growing experience, especially when it comes to pests and diseases. Below, Qinnong.com brings you its common diseases and control methods.
1. Damping-off
Damping-off occurs at the seedling stage. When it strikes, the stem of the plant has a water-soaked appearance, which spreads rapidly until the stem wilts and falls over onto the ground. If the ground is quite moist, a layer of white mold will also grow around the plant, after which the leaves and roots all rot and die.
Control methods: When sowing and raising seedlings, choose a plot with higher terrain, a low groundwater table, and good drainage. Before planting, disinfect and sterilize the seeds and soil. At the seedling stage, regularly spray diluted potassium dihydrogen phosphate to prevent the disease. In addition, at the seedling stage, pay attention to ventilation and light penetration, and water according to the soil and climate.
2. Mosaic disease
Mosaic disease is a worldwide viral disease, and it does not appear only on passion fruit. When it strikes, the leaves begin to fade and develop diseased spots. In severe cases, the leaves curl and become deformed, and during flowering it also causes the flowers to be deformed and sparse. The plant grows weakly and becomes stunted, and the fruit is extremely small.
Control methods: Cultivate virus-free plants with strong disease resistance, strengthen management, and increase the plants' resistance. Mosaic disease is spread by many insects, so eliminate transmission vectors such as aphids and other insects, and promptly remove diseased leaves and diseased plants when found.
3. Phytophthora blight
Phytophthora blight is a fungal disease that mainly harms the seedling stage and is somewhat similar to damping-off. In the early stage, water-soaked lesions appear on the stems and leaves, and the disease expands rapidly, ultimately causing leaf drop and plant death.
Control methods: Choose seedlings with strong disease resistance for planting. Before planting, spray the soil with copper oxychloride to sterilize it. After disease is found, promptly remove diseased leaves and diseased plants to prevent the disease from continuing to spread, then spray with copper oxychloride.
4. Pests
Passion fruit has many pests, including aphids, thrips, and red spider mites. These pests all chew tender stems and tender leaves or suck sap, ultimately causing the plant's stems and leaves to wither and die.
Control methods: Most of them lay eggs in winter to overwinter, and hatch the following year, so collect and burn the weeds around the plants and the fallen branches and leaves, and immediately scrape off any eggs found on the plants. When pests are found, use their natural enemies for control or directly remove them with pesticides.
The above are the common diseases of passion fruit and their control methods brought to you by Qinnong.com. Pest and disease control for passion fruit is mainly preventive, and careful management should be carried out at ordinary times, so as to avoid discovering the disease when it is already too late.