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Home → Publications → Seed and Seedling Diseases in the Western US → Hot Water and Copper Coatings in Reused Containers Decrease Inoculum of Fusarium an dCylindrocarpon and Increase Douglas Fir Seedling Growth

Hot Water and Copper Coatings in Reused Containers Decrease Inoculum of Fusarium an dCylindrocarpon and Increase Douglas Fir Seedling Growth

Inoculum of Douglas fir root diseases caused by the fungi Fusarium and CyJindrocarpon is carried from crop to crop in reused containers. Soaking containers for 90 seconds in 80°C water removed ~9% of Fusarium and 100% of Cylindrocarpon inoculum between growing cycles. Overall seedling growth was also improved: seedlings grown in containers soaked between growing cycles were 10% taller and had 20% more biomass than seedlings grown in non-soaked containers. We obtained a 13% increase in the number of deliverable seedlings from containers soaked in hot water between crops, from the use of copper coated containers, or from both practices combined.


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Author(s): USDA Forest Service