| 摘要 |
An improved pet collar for combatting fleas and ticks is disclosed. The pet collar comprises a synthetic resinous matrix material, from about 5 to about 20 weight % of naled (dimethyl 1,2-dibromo-2,2-dichloroethyl phosphate) and from about 2 to about 12 weight % of a substantially non-volatile carbamate.
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