Constantin from Phoenix, Az writes
I bought this poison blocks from you about 1 year ago... did a good job, but now I tried again and looks that they are eating this like cheese... will this have a expiration date? or rats are becoming more resistant?
Fastrac All-Weather Blox Rodenticide isn't a bait that any rodent should be able to build up a resistance to due to how it affects the rodents body once it consumed it. It is recommended to rotate baits every 4-6 months if you still need to treat to prevent bait aversion. It honestly sounds like you have a much higher rodent population than you may realize, or you could have some alpha rodents eating more than is needed for a lethal dose, which means less bait for other rodents to consume, so replenishing has to happen for that reason as well. It is suggested that once you open a bucket of bait it should be used up within 1 year.
Answer last updated on: 04/03/2024
