Volume 3, Issue 3
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645



Destruction of the intermediate host of , in the endemic area at Hato Mayor in the Dominican Republic was accomplished by using sodium pentachlorophenate (Santobrite) in briquette form. A single application of sodium pentachlorophenate at an estimated rate of 15 p.p.m. eradicated from the arroyo Paña Paña, a flowing stream, for a period of six months. A single application of the chemical at an estimated rate of 5 p.p.m. destroyed in the arroyo Las Guamas, a series of connected pools with negligible flow, as evidenced by examination of the stream one week after treatment. Several methods of applying sodium pentachlorophenate, using the briquette form, were used and evaluated by colorimetric tests of water samples. Higher concentrations of sodium pentachlorophenate were required to destroy invertebrates in the arroyo Paña Paña than were required to destroy fish.


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