Repellent and insecticidal effect of the invasive plant Melilotus officinalis (L.) pall. on Tenebrio molitor L.
The repellent and insecticidal effect of invasive alien plant Melilotus officinalis L. on Tenebrio molitor L. in a laboratory experiment were studied. The repellent activity of the dry crushed aboveground part of M. officinalis, added to oatmeal and spring wheat, was studied in relation to the larvae of T. molitor. The best repellent effect of M. officinalis was observed in relation to T. molitor larvae when added to oatmeal. The insecticidal activity of an aqueous extract of the aboveground part of M. officinalis was studied on larvae and imago of T. molitor. A pronounced insecticidal effect of M. offcicinalis on the imago T. molitor was established in the absence of an effect on the larvae.