Envu Ronstar (Turf and Ornamental Herbicide)

Envu Ronstar (Turf and Ornamental Herbicide)

Ronstar is a herbicide that offers great weed control without root pruning.  This selective, granular, pre-emergent herbicide controls certain weeds in woody ornamental shrubs and trees in nurseries.

It can also be used on a wide range of turf species. It does not affect root systems, offering a flexible approach to effective, economic weed control, giving faster plant establishment and growth.

Using a residual, pre-emergent herbicide can eliminate the need for multiple post-emergent herbicide applications.

Key Features

• Is not taken up by roots – does not affect root systems (no root-pruning) and is not translocated through the plant
• High level of selectivity – allowing use in a wide range of ornamental species
• Kills weeds prior to emergence from soil
• Controls germinating weeds for up to 10 weeks giving season long weed control
• Does not degrade after exposure to long periods to sunlight, therefore weed control is maintained for a long period
• Oxadiazon becomes strongly bound to soil humic and clay particles and therefore does not leach from the soil under heavy irrigation or rainfall
• Retains activity over a range of soil types, organic matter and pH
• Degraded in soil via microbial pathways – research shows no evidence of build up of oxadiazon in soil after several annual applications