Daconil question (chlorothalonil) in my garden...?

Question

I bought Daconil (active ingredient Chlorothalonil) to control an early blight issue in my garden. Do I need to know anything, do anything before applying? How does weather affect it? Rain will be coming tomorrow....any thoughts? Thanks! Oh, and I have a confirmed diagnosis through my extension office. Thanks!

Answer 1

then the folks at the extension office already told you to READ THE DIRECTIONS!!!.... with the package in hand, why do you think you need to come here to ask us what to do?.... if you don't HAVE the directions, then you don't need to be using the product until you DO.... you can look them up online and see the product label..... it will be under the name brand....

Answer 2

As long as you give it 24 hrs before the rain hits it will be ok. Daconil is a systemic fungicide and enters through the leaf surface and protects for up to 3 weeks or so. Just make sure the temperature is not over 85 degrees or you risk the chance of burning the foliage. If you feel that after the application the rains come a little too quickly, you can repeat the application when the weather has cleared up. If you can, I would wait until the rains have ceased and then do it just to make sure. But, if you have this 24 hr window go ahead and spray away. I have used Daconil for many years and feel that it is the best all around fungicide on the market today, and it has been for a number of years. Be sure to follow the directions on the label. Do not deter from them whatsoever. Hope this answers your question. And good luck...

...Billy Ray

Answer 3

Well, my gut feeling is don't use it at all.  But I know there is a dilute formula suitable for edibles and ornamentals.  Boy that just scares me because the Daconil I remember could not be used anywhere near residential or school areas or near streams.  Granted it was a higher concentration.  

Realize most fungicides work by protecting the leaves, not curing the problem.  Daconil is just a little different as it goes into the leaf.......now doesn't that sound yummy for edible plants??  

Try to get it on 24 hours before expected rains as it needs time to get in.  Read the label to see if there's any mention of reapplication.  

Fungicides are tricky at best.  Don't expect miracles but I hope you receive one.  I hope this is for ornamentals........