You can manage the ever-bearing raspberry bushes to produce one large harvest every year by making sure the plants are pruned in late winter before new growth begins and the ground is still frozen. Whether you are pruning manually by hand, with a rotary mower, or your preferred mechanical machinery, eradicate all growth above ground and only leave 1-2 inches of stub on every cane. For an increased yield, install raspberry netting when the fruits are about to start ripening.