Beetles:Damage can be caused by adults as well as larvae

摘要

There are more than a million beetle species, pests and beneficials, such as ladybirds, rove beetles and ground beetles. Depending on the species, adults can cause as much damage to ornamental plants and turf as larvae.Some have a wide host range, such as vine weevil. Others are specific to a single type of plant, such as water lily beetle. Viburnum beetle (pictured) can be a serious pest but attacks just a few types. Lily and rosemary beetles, found as far north as Scotland, can cause serious leaf damage.Extensive efforts continue to be made to keep Asian longhorn beetles out of the UK due to their significant threat to a range of broadleaved and fruit trees—such as maples, ash, horse chestnut, willow and pear— and the drastic measures needed for control. Natives of China and Korea, longhorn beetles have become established in parts of the USA. The notifiable pest has been intercepted on imported wood products, packaging and bonsai trees.