cossus Goat moth General The goat moth ( Cossus cossus ), is a pest of broad-leafed trees. It is most often found in birch, ash, willow and elm but…
symptoms Fusarium fungi cause vascular wilt, root rot, foot and stem rot, leaf lesions, fruit rot, head blight in cereals and post-harvest decay.…
(fruiting bodies) with new spores occur. The lesions may merge, turning the whole leaf necrotic. On glumes, similar brown lesions with pycnidia and…
to fruits, stems and trunks, and may cause yellowing of leaves, premature leaf and fruit drop, and stem dieback. First signs of an infestation are…
malformation of leaves and fruits. Heavy infestations can cause premature leaf fall and fruit drop. Flowers attacked by first generation nymphs turn…
then turn into dark brown angular lesions with a yellow halo restricted by leaf veins. Lesions can easily rupture. Other symptoms are brown lesions on…
European red mite feeds mainly on the undersides of leaves but moves to upper leaf surfaces when the lower side becomes crowded. Contrary to the…
Attacked shoots are stunted and twisted. Heavy attack can lead to premature leaf fall and death of shoots. Fruits from infested trusses are small and…
result of larvae feeding on root hairs and tender roots as well as stem and leaf tissue and fruits. The lesions caused by feeding larvae provide…
occur on the stem. In tomato, sometimes V-shaped lesions are formed on the leaf, between the veins. 'Early dying' disease of potato only occurs as…
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