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An aphid infestation can ruin a garden. Learn what causes aphids and how to identify, kill, and control them naturally for healthy plants with no aphid holes.
This may halt the infestation if you detect it early enough, says Khan. Blast insects off with the hose. “A high pressure spray can physically remove them from garden plants,” says Kahn.
Aphids can also transmit viruses and allow sooty mold to take hold. When the population becomes too large, an aphid might grow wings and fly away to find a fresh host plant.
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
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.
The aphids do not usually cause much damage to overall tree health, but dieback is occasionally seen on very heavily infested branches. If infestations are heavy, twigs may die, but damage to the tree is usually minor. The aphids can be blasted off with a jet of water or can be controlled with any insecticides labeled for aphids.
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