Weedol Path & Gravel Weed Control Ready to Use is a pre-mixed ready to use weedkiller that is ideal for use on gravel paths, permeable patios and driveways. |Once sprayed, the active ingredient pelargonic acid starts working immediately giving you results in 3 hours and breaks down in soil naturally - leaving the area ready for replanting in just 3 days. |The ready to use format makes it convenient for spot treatment. |The bottle is made from 100% recycled plastic and is all recyclable along with the trigger.