> "I observed that the pests began to die after the soft drink was sprayed on > my cotton." Mr Laxmaiah and others were cited as saying This statement is ambiguous and doesn't necessarily imply residual effect. Maybe the Coca-Cola spray works by suffocating by covering with syrup. And/or maybe it has some "pseudo-residual" effect by suffocating insect eggs or juveniles, which then aren't around later to feed or reproduce hence are noticable by their absence. --- Brent