UF06419
ActivePlectranthus scutellarioides (L.) R. Br. · Coleus
David G. Clark^^^Phuong Nguyen
Pests
Aphids on Coleus
Plectranthus scutellarioides (L.) R. Br.
Infestation of Coleus by polyphagous aphid species, such as Aulacorthum solani and Myzus ornatus, manifests as leaf curling, stunted growth, and the secretion of honeydew, which promotes the development of sooty mold.
In the reference 3 varieties crop Coleus, where this is mentioned in the description.
Coleus is susceptible to attacks by non-specialized polyphagous aphid species, including the glasshouse-potato aphid Aulacorthum solani and Myzus ornatus. The insects feed on the plant's phloem sap, which causes characteristic deformation of young leaves, curling, yellowing, and an overall suppression of the plant's vital functions.
A secondary symptom of the damage is the secretion of honeydew by the pests, which covers the surface of stems and leaves with a sticky residue. This secretion serves as a favorable substrate for the colonization of sooty mold, which further deteriorates the condition of the crop. No specific resistance genes or unique pest races adapted exclusively to Plectranthus scutellarioides have been described in agronomic practice.
General information about the subject — on the page Aphids.
Varieties of Coleus mentioned in the description
Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.