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CERTAIN 2-BENZOXAZOLINONE AND 2-BENZOTHIAZOLINONE DERIVATIVES OF O,O-DIALKYL S-(2-HALOETHYL) PHOSPHOROTHIOATES AND DITHIOATES FOR KILLING SOUTHERN ARMY WORM LARVAE
CERTAIN 2-BENZOXAZOLINONE AND 2-BENZOTHIAZOLINONE DERIVATIVES OF O,O-DIALKYL S-(2-HALOETHYL) PHOSPHOROTHIOATES AND DITHIOATES FOR KILLING SOUTHERN ARMY WORM LARVAE