Designed to kill or destroy aphids; lethal to aphids as an insecticide or pest control agent.
From aphis (aphid) + -cidal (killing). The term combines the Latin genus name for aphids with the suffix meaning 'killing,' following standard pesticide terminology.
Aphicidal compounds range from ancient soap sprays to modern synthetic insecticides, but ironically, the most effective aphicidal agents today are often predatory wasps and ladybugs rather than chemicals.
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