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Lupin Aphids



P_lupinapd

Lupin Aphids

Usually appear in

Spring to Autumn.


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Caused By:-     Various Species of Aphids.

Description

Aphids on Lupin. Picture from Wikimedia Commons.
There are several types of aphids that are associated with Lupins. They may have different common names according to which country they are in. Some species, which not only attack Lupins, are :- Aphis craccivora, Myzus persicae, Acyrthosiphon kondoi, Macrosiphum euphorbiae, macrosiphum albifrons , Brachycaudus helichrysi.
They all damage Lupins and other plants by sucking the sap from the plant and extruding a sticky sugary solution which attracts bees and other insects and also causes black mould to develop on the plant. This black mould does not damages the plant and can be washed off, but it does block out light causing the leaves to be very inefficient and eventually die.
Winged aphids fly into lupin crops from surrounding vegetation and pastures. Reproduction is rapid if plant growth and spring weather is favourable as female aphids give birth to live young, without mating, until the colonies are large, when winged aphids redevelop and fly off to infect other pastures.
Aphid feeding slows growth, distorts flowers, and reduces seed set. They also transmit viruses after feeding on virus infected plants.
See also these other aphids Aphids, Blackfly, Cypress, Green Spruce, Honeysuckle, Juniper, Lettuce Root, Mealy Cabbage, Mealy Plum, Melon Cotton, Peach, Rose, Rosy Apple, Willow Bark Aphid, Wooly.


Control

Spraying with both knock down or systemic insecticide is the quickest way of getting rid of these pests.
Enticing their predators such as Ladybird beetles, birds, lacewings, hoverflies, spiders and parasitic wasps will keep them in control.
Washing them off with soapy water or hose them off the plant are other methods of getting rid of them.



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