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Deal with aphids organically: Method 4
Deal with aphids organically: Method 3
Deal with aphids organically: Method 2
The scarce blackberry aphid belongs to the biological family of aphids (Aphididae). Aphids are regarded as common garden pests. Some are plant-specific, so are especially good at persisting on the host plant, and difficult to eradicate. These particular aphids use blackberry as the primary food plant. They're not to be confused with the large blackberry aphid who are more damaging to garden plants. Scarce aphids are less harmful than the latter with damage tending to be tolerable in most cases.
These insects can pass viruses from plant to plant.
These aphids are a food resource for predatory insects like ladybirds and their larvae!
Adult: The adult insects are pale yellow-green. They're only 4mm but can best be seen in dense colonies near areas of new growth. Nymphs: Like the adults but are wingless and smaller in size. Sometimes they're paler in colour.
Dense aggregations on new growth. Honeydew. Black mould. Possibly infestations of ants. Stunted growth. Yellowing of leaves,
By encouraging wildlife to visit your garden you can attract cheap and natural forms of biocontrol to keep pests at bay. These beneficial insects include ladybirds, lacewings, spiders and hoverfly larvae. Insect hotels are an excellent way to do this. Please research insect hotels carefully, as many commercially-bought hotels can be more harmful to insects than good. The key to a good hotel is to get one with removable parts so that they can be washed.
You can give plants a plant oil winter wash to eliminate any overwintering eggs. The best time to spray your plants is when insects are nymphs as these are more susceptible to sprays. Nymph activity tends to peak at the start of spring when aphids hatch from overwintering eggs. Organic pesticides sprayed across several applications can be an effective way to control aphid nymphs. Plants that are in flower shouldn't be sprayed with pesticides.
This aphid is attracted to blackberry.