What kind of medicine is used in banana fruit period? What kind of medicine should I use before bagging? You'll know after reading it!

Bananas from Yunnan, Laos, Myanmar and other regions are listed on the market from January to May every year. And after the banana fruit is easy to be harmed by thrips, jumping beetles and scab, what medicine is used in the banana fruit period? What kind of medicine should I use before bagging? You'll know after reading it!

Classified control of thrips, jumping beetles and scab

Thrips are piercing and sucking mouthparts insects, which harm bananas by sucking the juice of bananas. the injured bananas will form protruding small thorns and show black color, which will fall off after touching them with their hands. Zhao Kewei suggests that imidacloprid, which has good internal absorption, can be used together with banana fruit medicine for thrips control. After bagging, the banana can also be irrigated with imidacloprid mixed in fertilizer and water, making full use of its internal absorption to control thrips.

Jumping beetles do not like to see light, often hide in banana heart leaves, like nocturnal activities, gnawing on the pericarp. With the growth of the banana finger, the wound slowly corked, affecting the appearance of the finger. Zhao Kewei pointed out that the prevention and control of jumping beetles generally choose cis-cypermethrin, cyhalothrin and so on.

Banana scab harms leaves and fruits. When young banana fruit is infected, tiny black spots are produced on the fruit surface, which can cover the whole fruit surface when it is serious, and there is an obvious sense of roughness when touching it with hands. Bananas harmed by scab are commonly known as "black spots" bananas. Zhao Kewei said that the ideal agents for the control of banana scab include flusilazole, difenoconazole, tebuconazole, and fluconazole, and several compounds that belong to the same triazole class have roughly the same properties and have different nature. for example, it is not recommended to use or increase the dose of flusilazole, tebuconazole, and fluconazole in bud extraction and young fruit stage, so as to avoid drug damage caused by improper use. For the prevention and control of scab on fruits, when bananas are scattered and combed three times, spray protection can be carried out after wiping flowers, and the selected products should be safe for young fruits.

For the plants whose leaves have been damaged by scab, the young buds are likely to have been invaded by the disease after extraction, but there are no symptoms in the incubation period. Zhao Kewei also reminded banana farmers that because bananas have to be treated many times after wiping flowers, it is easy to cause drug damage if they are not used properly in the young fruit period. Some medications are in normal use, but if you accumulate too much in the place where the banana finger is bent, it is also easy to burn the finger. Therefore, the use of chemicals on banana fruits should be carried out in a small amount and many times.

Washing fruit before bagging is the key.

Fruit washing refers to fully spraying fungicides, pesticides and banana swelling type nutrient solution once or twice before banana bagging, so as to prevent bananas from being attacked by diseases and insect pests after bagging. At the same time, the use of some leaf nutrient solution can not only make the banana plump quickly, but also improve the color of the banana peel to a certain extent.

"good results can be achieved by using pyrazolyl ester (ethoxystrobin, azoxystrobin) or chlorothalonil + difenoconazole (WDG)." Zhao Kewei recommended a formula for fruit washing. When using ethoxystrobin and azoxystrobin, it is necessary to avoid mixing with EC products to avoid drug damage or failure. The nutrient solution for fruit washing can choose Kangpu Kepke + Kangpu liquid calcium. Spray the fruit carefully and evenly to ensure that the positive and negative sides of the banana are fully exposed to the medicament, and bag it in time after the medicament is dry.