J.17 Focal application of Bayluscide® in an irrigation canal, Egypt
Slide J.17 Focal application of
Bayluscide® in an irrigation canal, Egypt
Studies of snail distribution and human water contact patterns
show that in most irrigation schemes transmission is focal rather than
widespread. Consequently, chemical and manpower can be saved if snail control is
effected at these transmission sites.
In Sudan this is done by applying one kilogram of
Bayluscide® as 70% wettable powder mixed with 10 liters of water over a
period of 40 minutes. The concentration achieved is 2-3 ppm of the active
ingredient This application is done about 300 meters upstream from the village
and will keep the target reach of the canal (i.e. the potential transmission
sites at the village) free from snails for about 4-6 weeks, when the next
application is carried
out
