It is caused by that near borders of the lodged (damaged, weakened) area are located stalks not damaged in such an extent, and in other circumstances would remain standing okay.
Ito ay sanhi ng mga iyon malapit sa hangganan ng lodged `ay magiging (nasira, Weakened) lugar matatagpuan stalks ay hindi nasira sa isang SAKLAW NA dry, at sa iba pang mga pangyayari Gusto mananatiling nakatayo okay.