Horicultural oils smother out pests

By Tom Dominguez, Quay County Extension Now is a good time to control scale insects on evergreen shrubs and trees such as camellias, hollies, bay laurel, myrtle, enonymus, citrus, photinias and boxwood through use of a horticultural oil spray. Fruit trees may be sprayed at this time of year in order to control insect eggs [...]