Suitable products are Miracle Rapid and Doff Systemic Insecticide. But do remember that all insecticides are poisons and need to be treated with care. Finally a word about fungus. Mildew can trouble some patio plants, and blackspot is a perennial problem on roses. You can cure the problem by using a systemic fungicide such as Systhane, Nimrod or Fungus Clear.
Fungicides kill only fungi and are harmless to insects.
So if you have both pests and disease, both need to be dealt with by using both an insecticide and a fungicide Tasks for June Plant out bedding plants in borders and patio containers and keep well watered Lift tulips, apart from the dwarf kinds, and store in a cool dry spot. Replant the bulbs in October Buy outdoor tomato, courgette and melon plants from the garden centre to grow on a sheltered, sunny patio or balcony. Keep sweet peas well watered and give them the occasional liquid feed Buy and plant dahlias. Protect them against slugs and keep well watered and fed Continue to spray roses every two weeks with a systemic rose fungicide such as Systhane which gets right into the sap of the plant and helps to prevent the debilitating diseases of blackspot, mildew and rust Cut away the runners from summer-fruiting strawberries. Sow biennials such as wallflowers and foxgloves to provide flowers next spring and summer Trim back the stems of invasive alpines such as alyssum, arabis and aubrieta.