How does someone know if weed killer was used on any lawn?
I have to take my dog somewhere and I have no way to know which lawns have been treated. – S.C., Miami, FL A: Relax. There’s no convincing evidence that weed killer is truly a danger to dogs, according to veterinary toxicologist Dr. Steve Hansen, director of the ASPCA Animal Poison Control Center. “We do suggest that you give weed killer about two hours to dry. Four days later is very safe, as far as we know,” he commented. Several studies have investigated a possible link between weed killers and either neurological or carcinogenic effects in dogs. This is definitely an issue in which Hansen says the ASPCA Animal Poison Control Center is interested — with one exception. While there’s no conclusive evidence of any association between the use of weed killer and dog health, one study did demonstrate a connection between weed killers on grasses and an increase in bladder cancer in Scottish terriers. However, this type of cancer is over-represented in Scotties and other factors – includin