When to Delice Cows?

Many livestock producers will administer an endectocide treatment at weaning time, usually late September or October with intentions of controlling internal parasites, cattle grubs and cattle lice. These fall applications may help reduce lice populations, but may not remove the infestation.

When should I treat my cow for lice?

Treat cattle for lice during the fall months, beginning in October, as populations are growing. Administer DECTOMAX^® Pour On to aid in controlling both biting and sucking lice. Consider a follow-up treatment two to three weeks later to allow time for any eggs to hatch but not mature into adults.

How do you Delice a cow?

Colwell recommends re-treating cattle in February if lice become a problem, using an oil-based pyrethroid. Such products spread through the hair coat and their residual activity can last until spring. Other useful methods include insecticide dust bags or backubbers, which allow animals to self-treat.