Effect of fentin acetate on wet-seeded rice, Pistia stratiotes and Azolla pinnata uri icon

abstract

  • Fentin acetate, a molluscicide used to control golden apple snails [Pomacea canaliculata (Lamarck)], was phytotoxic to wet-seeded rice (Oryza sativa L.) (pregerminated seed sown on puddled soil), Pistia stratiotes L. and Azolla pinnata R. Br. when used at rates required to kill snails (0.2-0.9 kg a.i. ha-1). These rates reduced rice seedling height. Rice shoot and root dry weights were reduced when 0.6-0.9 kg a.i.ha-1 were used. The compound was highly phytotoxic to seedlings of water-seeded rice. P. stratiotes, an aquatic weed, was controlled at rates ranging from 0.1 to 0.9 kg a.i.ha-1. More than 90% kill of A. pinnata, a nitrogen-fixing, free-floating fern, occurred when 0.9 kg a.i. ha-1 was applied.

publication date

  • 1991
  • 1991
  • 1991