Backyard Aquaponics
A place to discuss aquaponics

I have this on all my cukes and squash, both dirt and AP.

The only thing that I've found works even remotely is a mix of milk and baking soda sprayed on it. Another friend said copper. Can I use any of that in AP? Should I just pull them out? I've tried pulling off the affected leaves but it's on the stems too.

Copper is supposed to be bad for fish.

You can try milk and water 50:50 ratio as well.

I have had some success with eco rose, which is pretty much just potassium bicarbonate.

A milk spray will work... usually a 9:1 mix... use full cream, not skim milk....

Hadn't heard of the "baking soda" idea before... but it makes sense.. as it's Sodium BiCarbonate... and therefoe would alter the pH on the affected plants... in the same fashion that EcoRose (Potassium BiCarbonate) works....

As both products are a "bicarbonate"... they're both pH buffers... and will raise your pH... if you get too much into your grow bed/fish tank...

Not a problem if your pH is low... especially with the Potassium BiCarbonate... as fruiting/flowering/seeding plant stages of growth benefit from a Potassium boost...

GR8... "EcoRose"... or "EcoFungicide" as it's now marketed... is a brand name here in Australia... you can often get Potassium BiCarbonate from wine making supply shops... if you want/need it...

Ok, I'll start with a little and see how it does. I haven't tested my ph in a while so I'll be sure to do that first. They're all blooming so I hate to pull them out.

I'll look for the potassium bicarbonate too I don't recall ever seeing seeing it here unless it goes under a different name.

I had a hard time finding potassium bicarb myself.. ended up ordering on the internet but if you have large Brewing Supplier near by they may have some.. It is used in wine making to pull the acid out of the grapes during the fermenting process.. None of my local U brew suppliers had any sooo internet it was.. Also if adding to tank to buffer PH 1 Tablespoon raises the PH like .5 in a 1000 liters sooo go easy on the stuff

Thanks for the info, my zucchini plants are getting smashed by powdery mildew.

Bought some Eco fungicide and Eco oil today, will see how it goes.

Be careful with the oil.

Fish and oil do not mix well.

This is for my wicking beds...

It hasn't infected my aquaponics yet...

On that note....what are people's thoughts on transplanting veggies that have been treated with nemoil or pestoil into AP.

I have a pipeline production of seedlings, to pot-lings, to AP. I've found cause to give some of my pot-ling cabbage a f&d squirts.

Recon a few weeks in sun and a rinse in water before transplant will be okay?

Don't bother trying to treat existing leaves too much. Cut them off in order of worst effected until you think you've removed too many, then spray the Eco fungicide/rose.

Otherwise ull never get on top of it