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Scarlet beetles (6mm - 8mm long) with black heads eat the leaves, flowers and seedpods of lilies and other members of the lily family. Don't mistake them for ladybirds. Between April and September the beetles lay eggs on the undersides of leaves
.clematisspring, summerMore advice on growing clematisMonty's guide to late-flowering clematisVideo advice on planting a clematisHow to make a metal obelisk for climbing plants
pull them out if they appear in the garden. Every two weeks from early spring onwards spray plants with a systemic action fungicide.hollyhocks, mallowall year roundCommon fungal problems affecting plantsIris leaf spotRose blackspotRose rustTulip fire
.Promptly pick off and destroy affected leaves. If leaf spot is a persistent problem, try growing your primulas under glass.Spraying with myclobutanil may help give some control, although they're not specifically labelled as a solution for primula leaf spot
The large, beautiful caterpillar larvae of the elephant hawk moth has two pairs of eye markings, which are made even more prominent when it withdraws its head into its body. They are, typically, a blackish-brown colour but are sometimes green, and though their 'eyes' make them lo...
A fungal disease weakens the plant and can seriously reduce its flowering performance. The brown spots eventually grow together and develop grey centres. Infection is caused by air or water-borne spores entering the plant through damaged leaves
knife and dust the wound with fungicide.liliesspring, autumnMore advice on growing liliesDividing day lilies videoRemoving lily beetlesPlanting lily bulbs in a potDeadheading lilies