Pest & Disease Factsheet - Caterpillars
20 Apr 2012 | by John Adlam
The biting mouthparts of this large group of pests mean that all parts of the plant are at risk of attack.
Beech bark disease is most likely to attack trees with trunks that are more than 20cm in diameter, although it can also be a problem on young plantations. The disease occurs when heavy infestations of beech scale insect (Cryptococcus fagisuga) make enough feeding wounds in the bark to enable infection...
The biting mouthparts of this large group of pests mean that all parts of the plant are at risk of attack.
Eelworm pests are numerous and can damage a range of plants but some species are beneficial.
Black vine weevil (Otiorhynchus sulcatus) is a serious pest of ornamental nursery stock. The adults feed on susceptible plant foliage, leaving notched edges, and the larvae feed on roots. This damage causes in excess of £30m in annual losses for the ornamentals industry.
The animal's fast reproduction makes eradication impractical, but cooperative effort can limit crop damage.
Despite its limited impact on plant health, this fungal infection can cause customers to reject plants.
This disease kills seedlings by drawing on the nutrients of a host's dead cells, causing plants to collapse.
Sudden oak death has caused extensive damage to a wide range of hosts on both sides of the Atlantic.
These pathogens can pose significant disease risks.
Soil-dwelling larvae of chafer beetles and crane flies are serious turf pests, feeding unseen in the topsoil layer beneath lawns, golf courses and sports fields. Chafer grubs also feed on roots of young trees, herbaceous perennials and nursery stock. Adults eat the foliage and flowers of some ornamental...



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