Deal with aphids organically: Method 4
Deal with aphids organically: Method 3
Deal with aphids organically: Method 2
Deal with aphids organically: Method 1
Currant-Sowthistle Aphid is a sap-sucking insect belonging to the order that holds true bugs. Many aphids have complex life cycles, alternating between two species of host plants. As the name suggests, Hyperomyzus lactucae will alternate between currant and sowthistle during its lifecycle. Likewise, aphids can produce several overlapping generations each year so they can become abundant very quickly. These bugs can damage young foliage, where their feeding results in leaves turning reddish-yellow, curling upwards.
These bugs cause leaves to discolour and curl upwards.
A food resource for predatory insects like ladybirds and their larvae!
Aphids have complex life cycles, they can alternate between reproduction strategies and this is dictated by the host plant and time of the year. This means that a female aphid can produce both winged and wingless offspring. Winged adults are transparent green with a central black patch. They have long black antennae and are around 5mm big. Wingless adults are transparent green with long pale antennae. Nymphs appear like wingless adults but are smaller in size and generally paler in colour.
Nymphs will damage the young foliage from sucking out the leaves sap. Foliage becomes puckered, becoming reddish/yellow at the tips of shoots.
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.
You can give plants a plant oil winter wash to eliminate any overwintering eggs. Best time to spray your plants is when insects are nymphs as they are more susceptible to sprays. Organic pesticides sprayed across several applications can be an effective way to control aphid nymphs.
This aphid will alternate between currants and sowthistle.