What is banana anthracnose and how to control it?

What is banana anthracnose and how to control it? Please introduce that anthracnose is a common disease in banana producing areas, and it is also the most important postharvest disease in banana producing areas all over the world. Plum blossom spot appears on the yellow ripe pericarp, which rapidly expands into dark brown patches, causing the whole fruit to blacken and rot, and when the fruit stalk occurs, causes banana fingers to fall off. The leaf was killed, the disease spot was not obvious at the beginning, but in the later stage it showed irregular strip shape, central gray, and many small black spots. The stem of the mackerel is killed, the top is black, and the stem is rotten in severe cases. If the blossom is invaded by germs soon, the tip of the small fruit will turn black and rot. The pathogen is banana anthracnose. The initial infection source of the field disease comes from the diseased banana tree, and the conidia on the disease spot are transmitted by wind, rain or insects. In the fruit, it is usually in a state of inhibition and infection, and the bacteria dormancy under the upper epidermis and do not show symptoms quickly until the fruit is yellow-ripe. The packaging materials of fruit and the conidia of pathogens in the ripening room are also one of the sources of the disease during fruit storage and transportation. The occurrence of the disease is closely related to temperature, humidity and varieties: the disease occurs seriously during the period of high temperature and humidity in summer and autumn, low temperature and dryness in winter, and the disease is mild. Among the cultivated varieties, white oil body, black oil body, Dongguan Zhongba are more resistant to disease; 63-1, high foot mines are more susceptible. Control methods: ⑴ clean banana garden, concentrated disease, withered leaves burned; increase fertilizer, strengthen tree potential. ⑵ chemical control. From the budding and flowering stage, the mixture of 50% carbendazim 500 times and high lipid membrane was sprayed every 10-15 days for 3-4 times in a row, which could effectively reduce the harm of anthracnose. After fruit harvest, soak the fruit with 45% Teketol or 50% trimazole 500 times solution for 1-2 minutes, cool dry, and place it in a sealed film bag with potassium permanganate solid antistaling agent, so as to effectively inhibit the occurrence of anthracnose, prolong the green fruit period and reduce the rotten fruit during storage and transportation. ⑶ chooses to harvest in a sunny day at the right time, and the banana fruit should not be in direct contact with the ground to avoid wounds. ⑷ fruit packaging, ripening places and packaging materials must be fumigated with less than 0% formalin solution before each use. Click to get more banana planting techniques click to get more fruit planting techniques