PRUNING

But little pruning is necessary, except to go over the ground after fruiting, and cut out the canes which have just borne. It is best not to defer this till winter or spring, as some do, but they should be cut down immediately after bearing, so that they will not crowd the new canes.SFCC 13.2

“The principal canes should be shortened to four or five feet, and the lateral ones to about eighteen inches. When pruned in this manner the fruit will be much larger, and the plant will yield as many quarts as though the canes were left their full length. Besides, the canes will very often set more fruit when left unpruned than they can mature, and all is lost.”SFCC 13.3