Aspirin is the remedy for fungal plant problems, Black spot, powdery mildew, and rust are a terrible trio of fungi, which can attack and destroy your plants. Scientists have found that two uncoated aspirin tablets (325 milligrams each) dissolved in 1 quart of water and used as a foliar spray can thwart these diseases. I have not tried this, but I will.
Nurseries seem, even to a permaculturist, to be places too sacred and controlled for nature’s chaotic wisdom. The lack of known previous experimentations and available information on alternative nursery practice, coupled with generations of unquestioned current practice, makes the prospect of incorporating these polar opposite ideologies even more daunting.