Well I just bought a quart for $22.....but it's a concentrate so it should last awhile. I'm going to take a few more clones () soon so will let you know what I think of it as an anti-wilt.

However....he mentioned.....that besides spider mites it would help with heat stress, cold stress, other types of bugs etc...said you could use it on plants at the veg stage for all different things but he doubts he'd put some on flowering plants. (Also smothers powdery mildew according to him and "hardens off" seedlings to more light more quickly.)
He was very excited about the stuff so I thought I'd toss it out there for anyone who might be interested.