UC Cooperative Extension | Agricultural Experiment Station
Preparing soil for winter can protect soil health
Farmers placed clumps of soil into metal mesh baskets, submerged the baskets into jars of water, then watched to see if their soil held together. The slake test, conducted at the Soil Health Field Day in Woodland, measured soil health. Healthier soil,...
UC Delivers
Thousand cankers disease (TCD) is an emerging tree disease that is responsible for the death of ornamental eastern black walnut species throughout the country. In California, TCD is contributing to the decline of other native black walnut trees as well as English walnut trees in nut-producing orchards. TCD is caused by a fungal pathogen transmitted by the walnut twig beetle (WTB). There is great concern over the potential for further spread of TCD throughout the native range of eastern black walnut, as well as uncertainty about the disease’s potential agricultural and ecological impacts in the USA and in Italy, where it was first reported in 2013.
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