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Mint leaf beetle

By Gardeners' World on 19/10/2011 13:50:05

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


Horse chestnut scale insect

By Gardeners' World on 19/10/2011 13:38:40

, which can encourage sooty mould to develop. It's more of a problem in urban areas where temperatures are higher.Scrape the eggs off by hand and move them to an alternative tree, or destroy them.Spray with an insecticide containing imidaclprid


Scale insects

By Gardeners' World on 18/10/2011 15:56:46

, sugary substance (called honeydew) which encourages the growth of a fungus called sooty mould. Early summer is the best time to tackle the problem, when the newly hatched insects are crawling around looking for a place to feed and settle


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