Horticultural oils can be used as a dormant spray on fruit trees to proactively control overwintering insects and diseases. Dormant oil sprays should be applied in late March or April before the ...

Evergreens with at least some shelter from winter winds will usually suffer less winter desiccation damage. A thick layer of bark nuggets, or some other mulch, will conserve moisture and insulate the ...

A popular product used by home fruit-tree growers in days past was a spray known as “dormant oil.” Gardeners would apply the spray to leafless trees in late winter to kill overwintering bugs and bug ...

When is the best time, or what is the best temperature, to apply dormant sprays to my apple tree? - Gale, Racine. Dormant oil sprays must be applied before the leaves start to emerge, which means you ...