three pairs of prolegs, instead of the normal five and therefore the caterpillar moves with the same looping motion as an inchworm (geometrid). The…
before the harvest is affected. The size of a leaf tunnel depends on the stage of development of the leaf, the species of host plant and the species o…
biological control. The predatory gall midge Feltiella acarisuga is used for the control of the following pests: Spider mites Some of the common…
show signs of wilting during the day which may disappear in the early stages of infection. Under conditions favourable for the bacteria, the whole…
cinerea ) is part of the foot rot complex, which causes rotting of the foot and may cause death of the plants. In cucumber and tomato the fungus…
found on the oldest leaves. The adult emerges from the pupa via a T-shaped fissure. The adult whiteflies can usually be found in the top of the plant…
produced, the haustoria, from which the fungus penetrates the plant cell and takes up nutrients from the epidermal layer of plant cells. Most of the…
finally the adult insect. The eggs of the western flower thrips (Frankliniella occidentalis) are laid in leaves, flower petals and in the soft parts o…
lighter than the general body colour. In general, the caterpillar has a rather dull appearance. In the fruit of sweet pepper, however, the…
diapause; the eggs of “semivoltine” Diabrotica barberi remain dormant in the soil for two winters. This allows the larvae to effectively skip the…
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