underside of the leaf, this is where most fluffy symptoms are found. Damage symptoms Downy mildew pathogens infect mostly the leaves but occasionally…
the colonies mostly occur in these crops. In covered roses, the colonies appear first and foremost on the upper side of the leaves. In most crops, the…
plant. Most Fusarium species only make asexual spores. Some also produce ascospores. The Fusarium oxysporum life cycle, is similar to that of most…
. Pythium aphanidermatum mostly occurs at higher temperatures in the soil or irrigation water. Pythium aphanidermatum mostly occurs in young plants…
oxysporum ( Fusarium wilt ): Many different hosts, potato ( Solanum tuberosum ), most vegetables and ornamental crops, tomato ( Solanum lycopersicum )…
low temperatures or sudden fluctuations in temperature. Pythium ultimum mostly occurs at low soil or water temperatures and causes among others cereal…
and 26 °C with an optimum between 13 and 15 °C. Germination and infection mostly take place at high soil water content over a prolonged period of…
name suggests, grey mould’s ( Botryotinia fuckeliana / Botrytis cinerea ) most common symptoms are grey-brown lesions. The lesions occur on leaves,…
tomato Clavibacter is seed-borne and tuber-borne and primary infection is mostly from infected propagation material. It spreads to other seedlings by…
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