知道何时修剪。 剪掉所有的有花茎。 给藤蔓打薄。 如果有必要的话，春季时给藤蔓打尖。

I'm interested in that, but I only have a few mins. Can you give me at most the first 500 characters of a detailed explanation in English about that?
Summer-bearing raspberries only bear fruit on floricanes, which means that you need to let the canes grow for two years to produce fruit. Generally, you will prune floricanes to the ground after they have fruited. Allow primocanes to grow so that they will develop into floricanes and fruit in the second year. If there are too many primocanes, however, you may need to suppress them by thinning out their crop.  Primocanes are often pruned in late spring while floricanes will be cut down after they