Fly spray for cattle udders

[sjewart]

Got a heifer I think is succumbing to mastitis. All cattle had frequent SWISH and Spot On.

Wanting to try fly repellent in a plant sprayer as could plant spray udders in the field.

What is the strongest fly repellant product I can spray on dry udders? Happy to dilute if necessary.

So many products on the market.

 

[choochter]

is she in milk? if not, clart the udder in stockholm tar

 

[sjewart]

is she in milk? if not, clart the udder in stockholm tar

Not in milk.