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CARP AND ROUGH 
The German Carp which was originally brought to 
the waters of America, has turned out to be an ex- 
treme nuisance and a problem. These Carp feed to a 
large degree upon aquatic vegetation and root up the 
bottom soils like hogs root on the upland. Further- 
more, they keep the waters roiled and muddy and 
destroy the reproduction of game fish as well as 
practically all of the good duck foods. 
A new and proven method of elimination of these 
carp and other destructive fish is by the use of 
Rotenone. Of course, it will destroy all fish life in 
the waters where used, but those waters can be re- 
stocked with game fish, which will then (in the 
absence of rough fish) multiply and grow faster. 
Duck foods will again re-appear and be very easily 
planted and grown. If located on state-owned waters, 
get permission of your game department before 
treating those waters. 
Important factors to be considered in treating a 
body of water are: Water source, outlet, water 
temperature, surface area and depth. The product 
containing Rotenone must be heavier than water and 
when applied, sink to bottom gradually, and as the 
fish pass through that sinking strata, it will paralyze 
their gills. 
Most of the fish will come to the surface after 
treating waters and can be picked up and used for 
fertilizer on a farm field, or buried to eliminate the 
FISH ELIMINATION 
obnoxious odor. No harm in leaving them drift to 
the banks and decay, except the odor, they will 
fertilize the waters and the bird life will consume 
a greater portion of them. 
Game fish can be used for human consumption as 
they are truly not poisoned, the gills are simply 
paralyzed, the meat is still edible. 
After this sinking strata of Rotenone has reached 
bottom, its life is spent, and within a few days’ 
time, the same waters can be restocked with game 
fish. 
We recommend and offer for sale the LIQUID 
EMULSIFIABLE ROTENONE 5%, POWDERED 
CUBE ROOT 5% ROTENONE and the POWDER- 
ED DERRIS ROOT 5% ROTENONE. These pro- 
ducts are quick acting and poison, but when properly 
applied are not harmful to vegetation, man or beast; 
they will not harm cattle, muskrats, waterfowl or 
anything except fish. 
The following table gives you a brief idea as to 
how much is required per acre foot of water: 
Waters-Lemperatures 45-5 hy (bbe Rs 65°.) 75° Bs Sher: 
Emulsifiable 
Rotenone 2.5 lbs. 2.3 lbs. 2.0Jbs. 1.8 ]bs. 1-5 Ibs. 
Powdered 
Derris Root PiDbSwee-o LOS el Subse lea lbs. 1. Obs. 
Powdered 
Cube Root 2.51bs. 2.3 Ibs. 1.8 Ibs. 1.4 lbs. 1.0]bs. 
(Continued on page 36) 
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