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Elatobium abietinum, commonly known as the spruce aphid [2] or green spruce aphid, [3] is a species of aphid in the subfamily Aphidinae that feeds on spruce (Picea spp.), and occasionally fir (Abies spp.). It is native to Northern, Central and Eastern Europe and has spread to Western Europe, North America and elsewhere.
Soap Spray. A mixture of mild liquid (or dish) soap mixed with water creates a simple yet powerful organic pest control that works by suffocating soft-bodied pests like aphids, whiteflies, and mites.
The aphids can be blasted off with a jet of water or can be controlled with any insecticides labeled for aphids. A wetting agent should be included to help penetrate the waxy body covering of the insect. Horticultural oil sprays and insecticidal soap have also been used successfully. Several parasites are known to attack this aphid and it is ...
Viral infections, which can be extremely harmful to aphids, can also lead to the production of winged offspring. [64] For example, Densovirus infection has a negative impact on rosy apple aphid (Dysaphis plantaginea) reproduction, but contributes to the development of aphids with wings, which can transmit the virus more easily to new host ...
The aphids may not be the original source of infection, but are instrumental in spreading the virus through the crop. [9] Various chemical treatments are available to kill the aphids and organic growers can use a solution of soft soap. [12] Wasp laying egg inside an aphid's body Aphids tended by ants
Continued feeding in the roots can destroy the roots and consequently reduce the growth of the tree or kill it. The aphids are attracted to the sunken sites caused by the perennial canker fungus Cryptosporiopsis perennans and the galls are then the most frequent places on the tree for the fungus to re-infect it. [6]
repels aphids, the cabbage looper, and the Colorado potato beetle [3] Fennel: repels aphids, slugs, and snails [3] Lantana ukambensis: repels mosquitoes [1] Four o'clocks: attract and poison the Japanese beetle [2] French marigold: repels whiteflies, kills nematodes [2] Garlic: repels root maggots, [2] cabbage looper, Mexican bean beetle, and ...
Mild attacks cause discolouring and death of shoots while severe infestations can kill the tree. The sooty mould on the honeydew slows tree growth by impairing photosynthesis. Treatment to kill the aphids needs to be undertaken at an early stage of the infestation before populations have built up.