The latest in soil news include a new Soil Health Landscape Tool, the effect of mycorhizzae on tree ecology and the positive effect of soil microbes on plant’s defense system against pathogens.
“Disease prevention must be the primary goal since no chemicals cure a Phytophthora-infected plant, “ says Penn State Extension. Most extensions and other gardening information sites state similar things. But there still are Extension sites and horticultural companies, advocating the use of fungicides. Who are we to believe?
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