Applications of Sevin dust control this pest. Aphids suck plant juices and can build up to fairly heavy infestations.
Control aphids with sprays of malathion, rotenone, or acephate.
Leafhoppers carry aster yellows and may be controlled with malathion, Sevin, acephate, rotenone, Diazinon dust, or methoxychlor. . This information is for educational purposes only. References to commercial products or trade names does not imply endorsement by MSU Extension or bias against those not mentioned. This information becomes public property upon publication and may be printed verbatim with credit to MSU Extension. Reprinting cannot be used to endorse or advertise a commercial product or company.