Aphids, a common garden pest especially in summer, can be effectively removed from roses using a homemade solution of washing-up liquid and water, according to rose enthusiasts on the David Austin Roses Facebook page. The pests drain sap from plants, causing curled foliage and a sticky residue called honeydew, which may lead to sooty mould but poses no threat to the plant, says David Austin Roses.
Homemade Solution Recommended by Gardeners
When Dana Dobrescu posted on the David Austin Roses Facebook page asking for advice on an aphid infestation, group members overwhelmingly suggested a simple spray. Linda Moran advised: "Spray with washing up liquid and water mixed together." Jill Heiman added: "You could leave them for the ladybugs to eat, but if it's really getting to you, mix washing up liquid and water. Spray the rose and watch aphids slide off."
How the Spray Works
Diluted washing-up liquid disrupts the aphids' habitat, causing them to slide off the plant. However, it requires reapplication every few days, especially after rainfall. Excessive soap can damage plants, so gardeners should use this technique sparingly. Another effective method is to attract ladybirds, which are natural predators of aphids.
Expert Advice from David Austin Roses
David Austin Roses advises that in most cases, aphids are best left alone as they are an important food source for ladybirds, hoverflies, and other beneficial insects, playing a crucial role in the garden's ecosystem. If numbers increase, a strong spray of water is usually enough to reduce them. They also recommend gently rubbing aphids away or encouraging natural predators by planting companion plants like parsley, yarrow, or nasturtiums.
