FIELD TRIALS IN EGYPT WITH ICI 24223, BAYLUSCIDE AND SODIUM PENTABHLOROPHENATE MOLLUSCICIDES.

Parallel field trials have been conducted in Egypt to determine the relative efficacy for bilharziasis control of some new molluscicides and one in current use. In the field trials, Bayluscide and two formulations of ICI 24223 were compared with each other and with sodium pentachlorophenate. All the compounds were highly molluscicidal, but when judged on a basis of cost, ease of application and labour required, Bayluscide appeared to perform better than the others. If improved formulations of ICI 24223 could be made, the choice would be more difficult. Sodium pentachlorophenate, though effective, required high concentrations, and difficulties were encountered in handling the chemical.