Whenever I'm in such a quandary, I begin looking at the edible plant dosing rates. If they have dosing rates for grapes specifically, I go with that, but usually it's the same for grapes as it is for things like stone fruits.
You've got the label/MSDS on it, yes?
Yes, or tomatoes. But for me the closest "apple" to cannabis are actually peppers, and I don't see them labelled often. I guess that means that if I use a product that's not labelled for peppers, I'm technically breaking the law.Or rates for tomatoes..... might be a bit more "apples to apples".
So I am armed with a new weapon to try to eradicate these damn Root Aphids. I know some have had good results with it and I am wondering what is the application rate for Pyganic 5% (pyrethrin) for a coco drench? How many ml per gal?
Once you find the application rate... make sure you use it appropriately to break the breeding cycle.
Dip the entire root ball for a soak. Repeat in 4 days. Then wait 7 days and dip, wait 4 days and dip.
This isn't a 'contact' kill so when you see aphids running around after the drench, don't be surprised as it's normal.
Stay Safe!![]()
True they have to continue to eat the plant and ingest the pyrethrin
Watch your pH with some of this stuff. The pH can get really low and to acidic for the root zone. I found that out the hard way with a Bayer product for powder mildew. No amount of flushing work for my plants and they died in a few days. The Evergreen with my water source (pH 6.5) is around 5.3 @ 5ml per gallon
here you go and I changed / update my previous postsDid you pH the solution after adding the Bayer product..... and then the pH dropped over time??
Or did you skip setting the mixed solution pH to what was proper?
Appreciate the clarification there....
Skunk420- Pyganic comes in three different concentrations. What kind did you use: Pyganic 1.4%, 5%, 6%? The percent is the amount of pyrethrin.