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Python Dust


PYthon II Dust is the only dust to contain two novel active ingredients for maximum efficacy against all major livestock ectoparasites. Zetacypermethrin is a 5th generation pyrethroid with enriched S-isomer content that is highly active against horn flies, face flies, ticks and other pests. Piperonyl butoxide is a mixed-function oxidase inhibitor that helps overcome metabolic resistance in insects and and synergizes the zetacypermethrin for maximum efficacy and residual activity. PYthon dust contains a photostable formula of piperonyl butoxide for long-lasting activity in sunlight.

Product Advantages:

  • Odorless.
  • Low toxicity.
  • Can be applied with Y-TEX A-Line dust bag or handy 2 lb. shaker canister.
  • The shaker canister is ideal for treatment of:
    • Goats and sheep
    • Young dairy calves in pens
    • Horses
    • Around wound areas to control flies
  • The A-Line Dust bag is ideal for:
    • Remote pasture treatment
    • Alleyways where forced use promotes treatment
  • High efficacy


For Beef and Dairy Cattle, Sheep, Goats and Horses:

Can be applied by dust bag, shaker can, dusting glove and mechanical dust applicator. Do not use concurrently with insecticide ear tags containing zeta-cypermethrin or cypermethrin. Do not apply with power duster equipment. Do not enter or allow others to enter until dusts have settled.

Self-Treating Dust Bag Forced-Use – Horn flies, lice and face flies:

Place dust bag in a daily forced use situation. Do not allow free choice use of dust bag. Place contents of package in any commercially available dust bag; suspend bag in gateways or lanes through which the animals must pass daily for water, feed, or minerals. For dairy cows, bags may be suspended in the exit through which the cows leave the milking barn. The bags should hang four (4) to six (6) inches below the backline of the cattle. For reduction of face flies, bags must be located so animals will be forced to use them daily and hung at a height so that the face is dusted.

Horn flies, lice, face flies, stable flies, ticks and keds (direct application):

Apply up to 2 oz. (4 tablespoons) of dust per animal evenly into the hair over the head, ears, neck, shoulders, back, and tailhead. For spinose ear ticks, apply approximately 1/3 ounce (2/3 tablespoon) inside each ear. For stable flies, apply also to legs. For all applications, repeat as necessary but not more often than once in 3 days.

Do not make applications during rain. Avoid making applications when rainfall is expected before the product has sufficient time to dry (minimum 4 hours).
Rainfall within 24 hours after application may cause unintended runoff of pesticide application