Pear black skin disease is a matter of course
Recently, some fruit farmers asked whether pears had black skin during storage and asked how this happened. According to the description of the fruit grower, the author believes that this is the extremely serious physiological disease of black pear disease that occurred during the middle and late storage of Yali pear. The skin of the disease department was dark brown patches, and even when it was severe, it became flaky and often showed a lot of performance during the shelf life, which greatly reduced the commercial value of Yali pear and generally had no effect on the pulp. The cause of this disease is the storage temperature is too high or too low, harvested too early or too high concentration of carbon dioxide in the storage environment. In addition, mechanical damage, rain, and other adverse weather conditions during harvesting and transportation also have a great influence on melanosis. Prevention and cure of yellow melasma can take timely recovery, control the content of carbon dioxide in the storage environment, adjust the type of stacking, increase the width of ventilation ducts, increase ventilation, and maintain proper storage temperature and humidity (relative humidity 90 %-95%) and other methods. Using avocado cling wrap or using 0.3%-0.4% ethoxyquin wrapper for fruit packing and carton separator has certain effect. In addition, the use of single fruit bagged pear pear, the incidence of melanosis in the storage process is lighter.
According to the site of fungal infection,it can be divided into superficial fungal infection and deep fungal infection, superficial fungal infection is caused by ringworm infection of the skin, hair, fingers, toe fingers. The incidence rate is high with less harmful. Deep fungal infection is caused by Candida and cryptococcal invasion of internal organs and deep tissue, the incidence is low with big harmful. Classified based on mechanism action classification can be divided into (1) Antifungal agents for sterol synthesis in fungal cell membranes (2) Antifungal agents for fungal cell wall synthesis (3) Antifungal agents acting on nucleic acid synthesis, The Antifungal drugs easily affect the white blood cells and liver function, if in long-term use,it may caused a transient increase in GPT or leukopenia, withdrawal is normal.
Anti-Fungal Treatment,Fungal Infection,Antifungal Medicine For Skin,Antibacterial Drug Taizhou Volsen Chemical Co., Ltd. , https://www.volsenchem.com