General The cabbage leafroller (Clepsis spectrana) is native to North-West Europe. It is a highly polyphagous species causing damage to field grown cabbage, apple, pear as well as maple, popular, spru
the tree stock in the area, some 11,000 trees, is oak. ‘We’ve been using Koppert’s nematode product Entonem as a curative measure against the oak processionary
General The cabbage moth (Mamestra brassicae) is a highly polyphagous defoliator. Besides being a major cabbage pest, it feeds on 70 plants of 22 families, among them crops such as sweet pepper, tomat
General As the name implies, the European red mite, Panonychus ulmi , is mainly a pest of fruit trees (apple, pear, plum and cherry). However, it can attack a large scale of other woody plants and is
General The onion thrips (Thrips tabaci) is distributed throughout the world. It is found outdoors on many plants and particularly damaging on onions, leek, and in greenhouses on cucurbits, tomato, sw
General Impatiens thrips (Echinothrips americanus) is an increasing problem in greenhouse cultivation, having spread to many countries within the last 30 years. The thrips have mostly been able to spr
General The larvae of crane flies , called leatherjackets, live in the soil and feed on roots and shoots (which they pull into the ground of mainly grasses and cereal crops. The adults do not cause an
General The yellow rose aphid , Rhodobium porosum , is probably of North American origin but is now widely distributed in Europe, North Africa, parts of Asia and South America. It attacks plants of th
General Click beetles are elongate beetles with a hard exoskeleton, with the head deeply retracted into the thorax. When disturbed they lie on their back feigning death and then suddenly propel themse
General The chafers are beetles of the Scarabaeidae family. The larvae of both species live in the soil and feed on the roots of many plants. They are a serious pest that can cause substantial damage.
