Causes of Pomegranate Rough-Skin Fruit and Detailed Control Measures
Pomegranate is one of the seasonal fruits. During the growth of pomegranates, the phenomenon of rough-skin fruit occurs, which seriously damages the appearance and commercial value of pomegranates. Because of the poor appearance, growers often sell them at a low price, which seriously affects the economic returns of growers. So how is rough skin produced? How should it be controlled? Let's take a look at the detailed introduction below.
1. Disease symptoms
Rough skin is one of the most common diseases during the growth of pomegranates. It mainly damages the fruit and causes severe damage to the fruit appearance. In the early stage of the disease, brown water-soaked lesions appear on the calyx and fruit. As time goes on, they gradually expand and merge, eventually forming scab-like areas, and dark brown raised objects appear on the fruit, causing the fruit to crack and so on.
2. Disease pattern
The main causes of pomegranate rough skin are iron deficiency and manganese deficiency in the soil, as well as diseases. The pathogen of this disease overwinters as conidia on diseased leaves and diseased branches of pomegranate. After the beginning of spring the following year, when the temperature rises and the first spring rain falls, they will multiply in large numbers and infect the plant. Under suitable conditions, they can spread through contact with wind and rain and infect other plants within a short time. In addition, its occurrence is also closely related to air humidity. A high-temperature and high-humidity environment is very likely to cause its spore pathogen to germinate.
3. Control measures
First, orchard cleaning should be done well in winter, diseased branches and leaves should be pruned, and fallen leaves, residual branches and diseased fruits in the orchard should be collected and burned to reduce pathogens. Before pomegranate sprouting, spray lime sulfur mixture 1-2 times. From the flowering stage to before bagging, spray difenoconazole, which can improve the plant's resistance to waterlogging and disease. Before the rainy season, spray once every half month, which can prevent this disease. Applying more organic fertilizer can improve soil structure, enhance tree vigor and improve plant disease resistance.
The above is an introduction to the causes of pomegranate rough skin and control measures. I hope it can help you. If you want to learn more related knowledge, please follow us.