My tomato plants have at least two different diseases (confirmed by folks on here and my local extension agent). the extension agent recommended Draconil. I've never used it before, but I bought a spray bottle of the stuff at Lowes. The label says not to breathe it or get it in your eyes, so I went out there with a handkerchief around my mouth and sunglasses on like some bank robber.

When I started spraying, I thought it would come out in sort of an even mist the way my Serenade copper spray does. But instead it came out in these giant gobs that landed on the leaves and dried to white polka dots about .5-.75 cm in diameter. I tried experimenting with turning the dial in small increments, but it only seems to come out in gobs or not at all. No setting on the nosel produces a mist of the stuff. I tried standing farther away to get better spread coverage, but still it is still mostly polka dots.

Am I missing something here? Do I just have some defective bottle or is it supposed to come out in gobs? Will the gobs be effective or does it need to be spread around with 100% coverage on leaves to do its job?

Dave

I tried to find the concentrate, thinking it would be more cost effective, but the lowe's I was at only had it in the ready to use. I wonder if I can just pour it into a regular spray bottle and get it to work that way. I suppose I can call around next time.

Carolyn

(You shouldn't water down the ready to use Daconil. The active ingredient (chlorothalonil) needs to be at 29.6% to be effective.)

Rob, we agree on not diluting the ready to use but I'd like to restate what you said above.

Daconil concentrate is 29.6% chlorothalonil but I'd like to add that that's the concentrate that DOES need to be diluted, per the label instructions.

I think some here may misinterpret what you said when you said that Daconil needs to be 29.6% in order to be effective, without saying that it's the concentrate which does need to be diluted.

Carolyn

Rob