Scale & Aphids on Citrus in Winter: How to Knock Them Down Before Spring (Australia)
The short answer: winter is the smart time to get on top of scale, aphids and other sap-suckers on your citrus and fruit trees. A thorough spray of botanical or horticultural oil smothers the soft-bodied pests and the overwintering stages clinging to your stems and leaf undersides, knocking populations down before they explode on the [...]