Using dormant oil on fruit trees doesnt completely eliminate the problem with these pests but it is the best way to cut off most of the population leaving a simpler problem later in the season. Dormant spray application is unsuitable for citrus fruit or avocado since these trees do not go into a dormant state and can be harmed by the spray.
This concoction is specifically designed for use when the tree is dormant to suffocate insect eggs on the fruit trees.
How to use dormant spray on fruit trees. Homemade fruit tree spray. Now that you how how to spray fruit trees its time to make a homemade fruit tree spray. No matter which recipe you use the application for the homemade dormant oil is the same.
Furthermore most commercial dormant oil sprays are made with refined petroleum so this homemade mixture provides a much less toxic substitution. The heavy oils of early formulas were restricted to use on dormant trees because they damaged the leaves and flowers of actively growing ones. These are recipes that we use every year on our own fruit trees.
Dormant oil sprays are used on fruit trees before the buds begin to swell and suffocate insects and their eggs nesting in branches. During the fruit trees dormant stage which is typically between november and early spring before bud. Homemade fruit tree spray.
Dormant oils are refined petroleum or cottonseed oils mixed with emulsifier so they remain suspended in water. Shake the solution well before and during use. I usually switch them up and do a different one every week just to make sure they are covered until the blooms open.
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