Effect of Different Debagging Date on Fruit Quality and Storage in Rimianhong Pears

The experiment of bagging Rimianhong pear by black stripe bag in three different dates were conducted, the result showed:when the bags were removed in the first tendays in Jule.The rate of fruit rust, sunburn and the lose of water all serious.When the bags were remove in the third ten-days in July,black spot and split fruit were serious ,and the fruit coloration was not good. When the bags were remove in the second ten-days in July, the rate of fruit rust ,sunburn, black spot and the split fruit are all lighter and the fruit coloration was good.It showed that was the best period to remove the bags.