Recently, the farmers have been busy picking up bags from apples, and many farmers have asked questions about apple picking. Apple scientific picking can promote fruit coloring, increase sugar content, and improve fruit quality. Therefore, the management of apples before and after bag picking, to be meticulous science. This popular science article is for the reference of the majority of fruit farmers.

Prevent pests and diseases before picking bags

First, before picking up the bag, the orchard should be poured with small water to reduce the occurrence of daily burning. Conditional fruit farmers can install water and fertilizer integrated sprinkler irrigation facilities, which is better. Secondly, before picking up the bag, the orchard will also fight drugs to prevent pests and diseases. 2 to 3 days before picking up the bag, the orchard must make a good medicine, clear the garden, create a safe environment for the apple and then pick up the bag.

During this period, there are many diseases that need to be prevented, such as black spot disease, red spot disease, ring disease, anthrax. Insect pests that need to be prevented include pests such as the genus Spodoptera and the leaf roller moth. For the fruit use plan, you can choose 2000 times of carbaryl salt and 1500 times of penicillin, and add 400 times of polypeptide protein.

Picking up the bag time is very important

The bag picking period is quite different depending on the type of fruit bag and the apple variety.

1 yellow-green variety apple single-layer bag, can be removed at the time of harvest; 2 red varieties use a single-layer bag, about 30 days before harvesting, the bag body is torn open into an umbrella shape, covered on the fruit to prevent sunlight Directly remove the fruit, remove the whole bag after 7-10 days; 3 red varieties use double bag, 30 to 35 days before fruit harvest, first pick the outer bag, remove the outer bag and remove it after 4~5 sunny days Inner bag. 4 It is suitable to remove the bag from 9:00 to 11:00 in the day and from 3:00 to 5:00 in the morning. In addition to the paper bag on the south side in the morning, be sure to avoid the strongest daylight at noon to avoid the sunburn.

Bag picking method is the most important scientific operation

When removing the double-layer bag, use the left hand to hold the fruit, and the right hand will straighten the “V”-shaped wire plate, untie the bag mouth, then pinch the upper mouth of the bag with your left hand, gently pull the outer bag down with your right hand, and keep the inner bag. The inner bag is attached to the fruit by the support of the fruit.

Generally, the inner layer bag is removed after 5 to 7 sunny days (reduced on a cloudy day), which should be carried out at 10 to 14 hours. In addition, in the event of rainy weather, the time to remove the inner bag should be postponed, so as to avoid the formation of chlorophyll on the surface of the skin. When removing the single-layer bag, first open the bottom of the bag to ventilate or tear the paper bag into strips, and then remove them all in a few days.

Prevent pests and diseases after picking up bags

Within 2 days after bag picking, spray water disinfectant to prevent "red spot disease". If it is sprayed more than 2 days, the fruit will be infected with red dot disease. Even if it is sprayed, it will not help. After mastering the spray of the liquid, the liquid on the fruit can be dried on the same day.

More pesticide encyclopedia, please pay attention to China Pesticide Network

(Source: Good Agricultural Resources Network)

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