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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.
These aphids primarily target milkweed plants so treating infestations can harm the pollinators that depend on milkweed for survival, including monarch butterflies and bees.
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
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.
The host plants response to an aphid infestation is a loss of turgor and reduced growth due to water imbalances as the aphid feed on phloem. The aphid also causes reduction in biomass of the whole plant. However, once the aphid is removed the plant quickly recovers absolute growth rate and has increased relative growth.
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