@markyscott since the dormant oils seem to just be mineral oil would just using a mixture of mineral oil and water work as dormant oil? Or is there something different about the oil they contain?
Dormant Season Spraying Part 1: Broadleaf Deciduous Trees
- Thread starter markyscott
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markyscott
Imperial Masterpiece
I’d urge caution. There are several different types of mineral oils: naphtenic, parafenic, and aromatic. I’m not sure which group horticulture oils fall into or if the other kinds might be harmful to plants. Might be best to just get one that’s formulated for plants.
S
Gotcha. I was thinking plain old food grade from the store. I'll stick with the plant stuff though. Thanks!
markyscott
Imperial Masterpiece
The swelling buds on my trees tell me it’s the time of year to continue dormant treatments. Yesterday, I applied a 5% lime sulfur solution (6.5 oz/gallon) to all my trees that lost their leaves. This year, I sprayed my black pine trees as well - I’ll let you know how they do. I’ll reapply several times until bud break. In Houston, with our warm and wet springs, we have the perfect breeding grounds for fungal issues, especially on maple trees. Here’s a short video from one of Daisaku Nomoto’s apprentices demonstrating the process they undertake in their garden (the link was sent to me by Jonas Dupuich). They have an extra step in which they apply an event more concentrated solution to the trunk. I think this might be for asthetic reasons in order to create a white trunk on their maples, but I’ve written a note to Daisaku to be sure.
Scott
bwaynef
Masterpiece
markyscott
Imperial Masterpiece
Hi Wayne - I think it’s OK, but don’t wait any longer
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