Stalks, which are damaged and look just like as in any regular pattern are occurring worldwide each year approximately one million more (in the number of cases also square area) than of that found in regular patterns.
Stalks, Aling ay nasira at hitsura tulad ng sa anumang regular na pattern ay nagaganap sa buong mundo bawat taon Tinatayang isang milyong higit pa (sa teh bilang ng mga kaso din square area) kaysa sa natagpuan sa regular na pattern.