Other species such a bullheads, green sunfish, bowfin, also require a higher final concentration of rotenone for a complete kill. Like Greg and Dave have said, liquid IS much better, more reliable and easier to use compared to powder. Powder may in the short run be cheaper but if you don't get a complete kill and have to treat a second time, it not only costs more but you also have lost maybe some valuable time in waiting a period and then finding a rekill is necessary and then having the cost of retreat. Now which would be cheaper?
There are various pond conditions that require nuances of rotenone application methods for treating individual ponds that can be slighly different. Stratification for one can be a big factor in achieving complete success. One should be experienced with treatments and be knowledgable of the various factors that could prevent achieving an effective or complete kill of various species of fish. Using an inexperienced applicator AND one that has never used powdered rotenone is in my opinion taking a big chance to save a few dollars.
Last edited by Bill Cody; 07/06/08 06:24 PM.
