Mrs Main, MP for St Albans and the owner of a three-year old lakeland jack russell terrier called Sam, says the menace of poo-filled bags "is a massive problem" that is polluting the environment.
"Like many people, I like to walk my dog out in the countryside, parks and in woodland, but over the last few years I've noticed an increasing number of dog poo bags hanging off bushes, trees and railings - and it's disgusting," she said.
"People think it's the right thing to do to pick it up, but when they find there aren't any bins, they jettison the poo-bag into the undergrowth or lob it over a garden fence where animals can eat them, children pick them up or cyclists ride into them."
The answer is simple: Get some bags (we use these ones - they are great). Bag it. Use the bin if there is one. If not, take it home. PLEASE don't hang it in trees, or just dump it!