Grape ear bagging four methods

Grape ear bagging is an important measure to ensure that the appearance of the ear is beautiful and the value is increased. It can not only prevent sunburn, birds, bees and flies from harming fruit, but also reduce pests and diseases, prevent pesticide pollution, and reduce the effect of cracking fruit. Bagged grapes, the color of the fruit is good. Operation must pay attention to the following points. (1) Sorting Ears Ears should be properly trimmed before bagging and used in combination with "920" to make the ear more compact and beautiful. The method is: When the inflorescence is displayed, according to the load condition of the plants, the excessive or weak inflorescences can be removed in time. Before flowering, the panicles on the inflorescence and the florets in the front quarters of the inflorescence were cut off. At the same time, 3-4 spikelets below the panicle were removed, leaving only 10 to 14 panicles in the lower part of the panicle. (2) spray fungicide before bagging on the ear sprinkled a 200 times equal amount of Bordeaux solution or 800 times solution thiophanate-methyl, until the drug solution can be bagged. This will not only reduce the trouble of applying the medicine after bagging to prevent grape fruit diseases, but also improve the control effect. (3) The choice of bagging bags can be made with newspapers or good textures, or can be purchased for special paper bags or plastic bags for grapes. The length of the paper bag is 35-40 cm and the width is 20-25 cm, depending on the length and width of the set when the ear is ripe. Different varieties should use different bags. Giant bee, rattan and other species colored by scattered light, should use pure white polyethylene paper bag; red Ruibao, etc. by the direct light color varieties, the lower hole with a glass paper bag; white varieties such as seedless white chicken heart, etc. Dark paper bag. When using a dark bag or direct light coloring product for stained-light coloring, use a white bag or dark bag. Remove the bag 7-15 days before harvest to promote coloring. (4) Improve the quality of bagging After the ear is finished, spray the fungicide on the fruit surface to dry. When the bag is bagged, the paper bag is blown up, and the ear is carefully put into the bag, and the bag mouth is tied to the resulting branch on the handle. After bagging, do not touch the paper bag when performing field management so as not to affect the ear and fruit, and remove it together with the paper bag when harvesting. Colored varieties are scattered in the lower part of the paper bag 10 days before harvesting to facilitate full coloring. Bags must be made of paper materials with good air permeability, but not closed plastic bags. In areas with high rainfall, it is better to use a funnel-type paper bag with an open lower mouth to prevent excessive moisture in the bag.

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