Percent canopy cover of knapweed ( Centaurea m a c i 

 transects in 1987 and 1988 (before knapwed remo\ 

 (*) indicates plots from which knapweed was remc 

 plots are controls. 



e m o v a 



i s t e r i ; 



Char I eys Gulch #2 



9 10 Control Remova I 

 Mean Mean 



987 20 25 20 25 28 23 20 23 30 25 



988 5 20 28 15 18 30 25 23 18 35 



ch Creek «1 



Control R c m o v a 



1987 30 35 35 30 33 38 28 23 23 28 



1988 30 20 30 30 20 30 15 30 30 20 



32 29 

 25 26 



