By Angela Patrone & Joseph Wilkes Weeds can be a real eyesore on gravelled areas and patios, with everything from grassy invaders to stubborn woody plants like broadleaf, henbit, purslane, chickweed, and dandelions taking root between the stones. Wondering how to banish those pesky weeds from your gravel? It’s tough to completely eliminate them since weed seeds are airborne or carried by birds and insects, and they’ll sprout wherever there’s dirt, moisture, and sunlight. But don’t fret, you can still zap those weeds when they appear so they perish quickly. On the Gardening Hint and Tips Facebo…