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Deal with aphids organically: Method 4
Deal with aphids organically: Method 3
Deal with aphids organically: Method 2
A privet aphid is a sap-sucking insect that forms dense colonies on the soft young growth of the host plant. The host is a plant which an insect needs to survive and reproduce. These aphids are a typical yellowish-green, using privet as the primary host. They first emerge in spring, staying active throughout summer to early winter. Major symptoms include distortion and leaf curling, as well as premature leaf fall.
These aphids can cause early leaf fall in the plants they infest.
Aphids provide an abundant and reliable food source for predatory insects all summer!
Privet aphids are a soft-bodied insect that's about 1-2mm. They are yellow-green and can either be winged or wingless. They are known to form large aggregations near the areas of new growth.
Dense groupings of the aphids can rapidly develop on soft young tips and leaves. The aphids often attract ants, which collect the sugary honeydew that aphids excrete. Leaf distortion and curling has been noted from this species.
The introduction of ladybirds, hoverflies, lacewing and several parasitic wasps in a garden situation will reduce numbers. You can attract an array of beneficial insects to the garden by planting a selection of pollinator-friendly flowers that are in blooms at different periods of the year. Chemicals used in the garden not only repel pests but repel the beneficial insects too. Unfortunately, aphid infestations build up on plants before the natural enemies are active in sufficient quantities, so natural predators will only have limited control success at the very beginning.
There are chemical alternatives available for home use. These vary in the degree of persistence and strength. These include organic sprays containing natural pyrethrums; winter washes containing natural plant oils; and lastly, the more persistent chemicals which incorporate synthetic pyrethroids. Please consider if chemical control is necessary. If a chemical option is sought, check with your local garden centre and please take care to follow the manufacturers' instructions. Check with your local regulating body for guidance on active ingredients and their authorisation for use. Plants that are in flower should never be sprayed due to the danger they pose to pollinators.
These aphids will only use privet as its host.