crabgrass and asulox

jpavery – posted 16 August 2005 19:24

Does anyone know how much asulox to mix with water to kill crabgrass in st augustine grass? I have a one gallon sprayer that I will be spot spraying with.

Thanks

jr – posted 17 August 2005 13:10

1.5 oz per gallon, and use no surfactant

jpavery – posted 17 August 2005 13:27

What is a surfactant? An also how long before a chemical like this would start killing?

jr – posted 18 August 2005 13:13

surfactant can be any number of things added to a spray mixture for different purposes.as far as the time it takes to work, i dont really remember, but i think it might be something ridiculous like 2-3 weeks, and youll want to do two applications.

jpavery – posted 18 August 2005 13:21

Two applications on the same infested spot I take it. Maybe after it starts browning. Then hit it again? By the way thanks for you responces.

jr – posted 18 August 2005 15:28

time between applications should be no less than two weeks on any same area. oh, and most importantly, do not apply at temperatures greater than 85 degrees.