Hi,
I've encountered some kind of mildew (white powder) on some of my Goji berry bushes. The power is on the leaves lower-down and not the tips (not yet anyway). Some of the smaller leaves turn yellow and fall off.
My Gojis are on the patio in pots. I have also mulched some of them with bark.
I've used Dithane (about 3 or 4 times) - but it doesn't completely get rid of the mildew. What else can I try?
Would it have been all of the rain we've been having that caused the mildew? Would allowing them to dry out help? If so, what is the best way to stop the plant getting rained on? Cover the pot surface with plastic? Or would the whole bush need to be covered?
Thanks,
Kranser.
