Why should banana fruit be bagged? What's the advantage? How to cover the bag? What are the technologies?

Banana is a plant belonging to Musa family, also refers to its fruit, widely cultivated in tropical areas. The plants die after bearing fruit, and each plant can live for many years. Then why bag banana fruit? What's in it for you? How do I bag it? What are the technologies?

Why should banana fruit be bagged? What's in it for you?

Benefits of banana bagging:

1, to prevent scab, flower thrips and other pests;

2. Avoid fruit mechanical abrasion, promote fruit growth and development, and improve yield and quality;

3. Reduce the use of pesticides and meet the requirements of pollution-free green fruits.

4. Bagging banana fruits in summer can prevent diseases and insect pests, block sunlight and prevent direct ultraviolet radiation, because bananas will be burned by the sun and cause black spots, black skin and burnt skin.

5. Bagging banana fruits in winter can not only prevent diseases and insect pests, but also have the effect of cold insulation. Bagging banana fruit not only improves the appearance of banana fruit, ensures the clean and beautiful peel of banana, promotes the growth and development of banana fruit, the fruit size is uniform, but also improves the grade and quality of banana, so that banana can be listed early.

How to bag banana fruit? What are the technologies?

1. Bagging time. Bananas generally refer to the bending of the bud, and bagging is best when the peel begins to turn green. Bagging too early, due to many diseases and insect pests of young fruit, it is difficult to spray control, at the same time, it also affects the upward bending of fruit, which is not conducive to the formation of beautiful comb shape and poor appearance. Bagging too late, it can not achieve the sun, rain, insect, disease prevention, cold fruit protection purposes.

2. Tearing and pest control of ear before bagging. Before bagging banana, the fruit cluster should be arranged and the disease and insect control should be done well. Ear arrangement is to determine the comb number of ear when bud is broken and to carry out appropriate fruit thinning treatment before bud is broken and fruit is bent upward. Banana fruit cluster growth and development is limited by water and temperature conditions, comb number and fruit number should not be left too much, according to varieties and plant growth, after the bud is broken, the fruit fingers that grow too dense and irregular should be thinned in time, and there are double spore fruits, three layers of fruits, and the last comb less than 10 fruit fingers should be thinned. For banana ears with 9 combs less than 10 combs, 2 combs should be removed and 8 combs should be retained. For those with 11 combs less than 1 - 2 combs, 2 combs should be removed and 10 combs should be retained, and 1-2 small fruits should be retained on the last combs, which is beneficial to banana fruit nutrition supply, prevent banana axis from drying, and ensure that fruits can grow evenly, and the fruit shape is full, neat and beautiful.

Banana tender fruit is vulnerable to pests and diseases, spraying before bagging to control pests and diseases. Before bagging, it is usually necessary to spray twice. The first time is immediately sprayed when the bud is broken. The banana plants and buds can be sprayed evenly with 30% Aimiao 1500 times solution plus 10% imidacloprid 2000 times solution or 25% Shike 2000 times solution plus 10% Miaoli EC 2000 times solution to control the source of anthracnose, scab and stem rot. spray that banana fruit for the second time when the fruit fingers are bent upward. when the banana skin turn green, spray the banana fruit evenly once with 3000 times solution of 2.5% cyhalothrin emulsifiable concentrate and 1500 times solution of 30% amamiacol suspension agent or 10% high-efficiency metoclopramide emulsifiable concentrate and 1500 times solution of 30% amamiacol suspension agent in the sunny morning. nutrition agent can also be added during spraying.(such as green fenwei, Gao Meishi, potassium dihydrogen phosphate, etc.) spray strong fruit together, and bagging can be carried out after the fruit surface liquid is dry.

3. Bagging operation. The banana fruit bagging is carried out 7-10 days after the banana bud is broken, when the banana fruit is bent upwards and the banana skin turns green, the last medicine is sprayed, and after the medicine solution is dried, the banana fruit can be bagged by using pearl cotton film. Bagging should be selected at both ends. The outer layer is a blue film bag with a length of 140~160 cm and a width of 90 cm. The inner layer is a pearl cotton bag with a length of 120~140 cm and a width of 90 cm. Before bagging, first put the pearl cotton bag into the blue film bag, then open the bag mouth, aim at the banana ear from bottom to top, and then tighten the bag mouth at the fruit axis with rope to prevent rainwater from flowing into the bag. Bagging action should be light, so as not to bag and fruit friction damage fruit. When bagging in June to August, 4 symmetrical 8 small holes should be opened in the middle and upper part of the bag, and then bagging is carried out, which is more conducive to ventilation in the bag. After September, there is no need to make small holes in the bag. Before the cold current occurs, tie the lower coat film of the bag tightly, and then put a small bamboo tube in the middle of the tie mouth to facilitate the elimination of waterlogging.

4. Management after bagging. After bagging, check the fruit finger frequently. If there is any problem, deal with it in time. If the humidity is too high, open the bag for ventilation. After the moisture is dry, cover it well. Once found to have pests and diseases should be timely spraying control, and so on after the liquid medicine dry and then cover well.