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PYthon® II is a slow-release, plastic ear tag containing a synergized formulation of zeta-cypermethrin, a potent, enriched S-isomer pyrethroid compound. This insecticide has excellent activity against many pests, including horn flies that are resistant to certain other insecticides. A high loading of piperonyl butoxide synergizes this S-isomer and dramatically reduces the effect of pyrethroid resistance. PYthon’s exclusive Tri-Polymer matrix of non-toxic inert ingredients delivers a high ratio of synergist to insecticide for maximum insect-killing action. PYthon II has a net weight of 0.34 oz.(9.5 grams) per tag.
• Labeled for use on beef and dairy cattle, including calves and lactating dairy cows. • Controls ectoparasites which cause major economic losses. • Controls horn flies for up to 3 months with one tag/head and up to 3 months with two tags/head when used in an insecticide rotation program. • Controls face flies, lice, Gulf Coast ticks, and spinose ear ticks for up to 3 months with two tags/head. Aids in control of face flies with one tag/head. • May be used in winter for lice control. • Requires no withdrawal time. • Has Y-TEX Snap-Lok® collar for guaranteed retention against tag or button failure for 3 months. • Uses the proven Y-TEX two-piece application system. • Ideal for rotation with MAX 40™ or other organophosphate tags to help manage horn fly resistance to insecticides.