I, I mean my "PACK" had an infestation a year ago.
They only have to pick up a "Pregnant" tick and bring it home.
She drinks her fill, falls to the ground, lays her eggs, and "Whoomp, There It Is!"
Hundreds of eggs hatch,they begin to climb anything, the dogs pick them up, and then things really get interesting.
I used a "Combined Attack".
"Frontline, anti flea & tick shampoo, and powder.sprays.
We also sanitized the area every day,where they spend about 22 hours a day/night,,outside the front door, a tiled,covered floor,with soap & water, Clorox solution, and I sprayed all the "Nooks & Crannies" with bug spray when the dogs weren't there.
THAT WORKED!!!
Now I give them a monthly "Pill" that seems to be working.:laugh::laugh::laugh:
Good luck!
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