Some tests with fluorine compounds against the pepper weevil Anthonomus eugenii Cano

Some tests with fluorine compounds against the pepper weevil Anthonomus eugenii Cano

1933

REP.PP-0105

Several fluorine compounds have been tested with respect to their insecticidal value against the pepper weevil as compared with that of calcium arsenate. Sodium fluoaluminate (synthetic cryolite), potassium fluoaluminate, and barium fluosilicate gave a higher weevil mortality than did calcium arsenate but, except in the case of potassium fluoaluminate, injury to the plants overshadowed weevil control. The injury was less pronounced in the absence of moisture or when silicon dioxide was added to the fluorine compound. Because of plant injury following treatments with fluorine compounds and the residue problem, these materials are not to be recommended as a control for the pepper weevil. [AS]

v.26(6):1095-1105, JOURNAL OF ECONOMIC ENTOMOLOGY

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