Rodenticide wax blocks vs. Wheat grains Rodenticide

Rodenticide wax blocks vs. Wheat grains Rodenticide
Pest Control / Food Safety
Pls. Kindly I need your Help: Food Safety Auditors insist on using Rodenticide wax blocks
instead of Wheat grains In Outer Areas beside Fence Perimeter & Buildings.
But we noticed that small mice (house mice= Mus Musculus)
is not affected much & still active with Rodenticide wax blocks Form. Is there any solutions / Advice? Alternatives? In Food Processing co.
Can we use Wax blocks together with Rodenticide in form of wheat granules?
NB: Food Safety Auditors think that wheat granules can be misplaced to production areas by Labors / mice, although Bait Stations are well fixed & closed well
We are located in Egypt
Ossama Ismail

Dear Ossama Ismail,

Perhaps you can find and use wax blocks with higher concentration of effective substance or wax blocks with other substances.
Check the specifications of the wax blocks you use and inform with your supplier.