The War on Orchard Mildew
District Horticultural Inspector Luke Powell issues a dire warning to apple growers regarding the spread of powdery mildew.
The story, cleaned up
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Powdery mildew is spreading rapidly through Kennewick orchards, and District Horticultural Inspector Luke Powell warns that growers must act immediately to control it. Powell provides a detailed chemical formula for making 'iron sulphide' spray, along with instructions for application, noting that it is cheaper for ranchers to make their own mixture than to buy pre-prepared solutions. He emphasizes that with apples expected to be valuable this year, farmers must take aggressive care of their orchards to avoid significant losses.
“The powdery mildew is spreading so rapidly through our orchards that it is a trouble no longer to be smiled at.”
Agriculture remains a bedrock of the Tri-Cities economy. This technical advice highlights the persistent struggle of growers against pathogens, a challenge that evolved from DIY chemical mixing in 1915 to today’s complex integrated pest management systems.
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