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Rob writes

I know adding surfactant to SpeedZone will lower selectivity and damage the lawn but will it kill it?

I know that adding a surfactant or MSO to speed zone will lower its selectivity and potentially damage turf. What kind of damage though? Will it be permanent and kill the turf or will it just temporarily damage it and stunt it? I think as long as it doesn’t kill it the added surfactant might be beneficial if there are severe weed problems.

Answer:

SpeedZone Lawn Weed Killer Concentrate already contains a small percentage of surfactant so you do not add another one.  It could cause permanant damage to the lawn or it may only be temporary, it really depends on the rate you use and if your lawn is under any type of stress such as drought or heat.

Answer last updated on: 09/06/2019

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