The effect of the Top-Stop Nipper on the annual growth of LP was tested and the results showed that it is possible to reduce the annual growth of LP by applying this method at the right time.
Áhrif Topp-stopp meðferðar á ársvöxt SF sýndu að hægt var að draga úr toppvexti ef meðferðinni var beitt rétt eftir eða áður en brumlenging fór af stað.