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the problem long-term but deals with the aphids in the short-term.Spray the tree with thiacloprid the moment you spot any aphids. Small numbers are far more easily tackled than large, rapidly multiplying infestations.apples, crab apples, cotoneaster, hawthorn

and squish them.Again, there's no real need to control the beetle, but you can kill them by spraying with a bug spray that contains imidacloprid or thiacloprid. Both imidacloprid and thiacloprid are systemic pesticides, meaning they are absorbed

In mid-spring, 2mm-long, greenish-brown, adult bay suckers emerge from overwintering. They feed on young bay leaves, turning them yellow and making the edges thicken and curl. The females then lay eggs under the curling edges and the new, young grey

of yellow-green or red.If the symptoms were evident last summer, in winter get rid of the eggs by spraying plants with an enzyme wash, which will quickly dissolve them. In spring, spray plants with the systemic insecticide thiacloprid or pyrethrumn to kill

The horse chestnut scale insect was first found in the UK in the late 1960s, having come over from southern Europe. It is now widespread and common in the south of the UK and Ireland, and is spreading northwards. Mature, adult horse chestnut scale

of the plant, attracting black sooty mould, which inhibits photosynthesis and deprives the plant of energy.Young tender growth is vulnerable to aphid attack. These tiny insects (1mm-7mm long) are usually green or black and breed fast, smothering the plant

containing imidacloprid or thiacloprid.euonymusmid-July, early September, winterMore common garden pestsWhiteflyLeaf miner flyMealybugsAphids

, but it's a suitable treatment for edible plants. Inspect new plants before bringing them indoors. Severely affected plants might have to be destroyed. Use the systemic insecticides imidacloprid or thiacloprid to kill the feeding bugs. cacti, succulents

one edge. Brush the clean edge of the card over the top of your plants - when the beetles hop into the air they'll stick to the grease. Repeat as necessary.Use pyrethrum chemical controls, or spray seedling brassicas with a thiacloprid insecticide

or they'll fly off.At the first sign of attack, spray plants with imidacloprid, thiacloprid or sunflower oil. Treatment is more effective on larvae than adults.lilies, fritillaries and Solomon's sealspring, summer, autumnMore common garden pests