apple, pear as well as maple, popular, spruce and many herbaceous wild plants. Because fewer broad-spectrum pesticides are used these days, the…
it occurs in greenhouses. In addition to citrus, it occurs on many other plants. Life cycle and appearance of Circular scale Female nymphs and adults…
produced parthenogenetically. They are usually found in the lower parts of the plants and are not very mobile. In autumn, winged males and females are…
pear, plum and cherry). However, it can attack a large scale of other woody plants and is occasionally a problem on roses and other ornamentals of the…
polyphagous defoliator. Besides being a major cabbage pest, it feeds on 70 plants of 22 families, among them crops such as sweet pepper, tomato,…
brassicas, from August onward. The silver-Y moth ( Autographa gamma ) feeds on plants of 14 families and is sometimes also encountered in greenhouse…
polyphagous, observed on 160 cultivated and wild plant species – trees as well as herbaceous forms - of 42 plant families, and it is the major pests…
blackcurrant aphid lives on the underside of the young leaves of currant plants. It does not induce a gall on blackcurrant. In June, it migrates to…
on the sugary deposits. Removal of large quantities of sap debilitate the plant and can cause wilting, desiccation of tissues and dieback. Solution…
h the species from most other soft scales. The size depends on the host plant and can vary from 2 to 4.5 mm. The young nymphs are white to yellowish,…
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