Many years ago, I conducted numerous chemical analyses of continuously cropped and virgin soils. The cropped soils were consistently superior in mineral constitution. However, the virgin soils were consistently higher in overall microbial population levels, and in the diversity of microbial species. In addition, the virgin soil featured a mellow texture, versus the more compact…
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Growers Need Both Pesticides & Disease Diagnostic Services to Be Successful
Many years ago, I was asked by a well-respected agricultural chemical company to find answers to a puzzling situation. Growers had been reporting to the company that their fungicides were ineffective and not performing as advertised. Despite following dosing instructions, crops were still succumbing to fungal diseases. The growers were understandably frustrated and angry, and…
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Remedies for Defoliation of Ash Trees Caused by Anthracnose
During the spring push, ash trees (Fraxinus spp.) will oftentimes experience extensive defoliation. This problem is the result of moderate to severe infections of the fungal disease ‘anthracnose.’ If rains continue beyond the spring, disease and defoliation will be extended as well. The fact we always see it in the spring has led many to…
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Treating Water Mold Infections in Vinca (Periwinkle) Flowers
Vinca, the flowering plants of the family Apocynaceae which are more commonly known as ‘periwinkles,’ are a popular choice of home gardeners for spring to summer annual flowers. Besides the appeal of their beauty, many choose vinca for their relative freedom from insects and mites. However, in the past few years we have received an…
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