Blockade is an excellent and safe selective pre-emergent herbicide for control of broadleaf weeds and grasses in established turf and garden beds.
Blockade is safe to use on its own around many plants, trees and shrubs in the garden. The main exceptions are bulbs and annual flowers. Blockade is a great option for reducing hand-weeding and spraying in your garden for up to 6 months.
The best time to apply Blockade is in the spring before weeds germinate or in the autumn for annual winter weeds.
Once Blockade has dried on the turf, it is safe for pets and children to re-enter the treated area.