Koinor is a systemic, contact, suspension concentrate insecticide for the control of various pests on plants. Its active ingredient is: Imidacloprid (chloronicotinyl) 350g/ℓ. It is easily applied as a drench. It is effective! Introduction Aphids, also known as greenfly and blackfly, are sap-sucking insects found on the roses’ soft new growth throughout the growing season. […]