Parrotfeather can be removed by raking or seining it from the pond but will reestablish from any remaining fragments and roots.

(taken from TAMU website)

So, using the weed razor will just spread it.....

www.hoosierpondpros.com

[Linked Image from lh6.ggpht.com]
http://www.pondboss.com/subscribe.asp?c=4
3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).