potatoes or other Solaneceaous crops can be planted for five years. On other fields on the same farm, no seed potatoes can be grown for one year after…
species. Fusarium is widespread and can infect a range of host crops. Many species are considered weak pathogens and can only infect wounded or…
and on crop residues and cause primary infection of the leaves. Survival can be several years, up to eight years for several Alternaria spp. Typically…
and on crop residues and cause primary infection of the leaves. Survival can be several years, in the case of black rot of carrots ( Alternaria…
oospores (sexual overwintering spores), sporangia (special structures which can either germinate directly or produce zoospores), chlamydospores…
a few days. Under circumstances unfavourable for germination, the spores can survive a few days on the plant surface and still germinate when the RH…
moving from the roots of infected plants to neighbouring plants. The bacteria can also be transported by irrigation water. Disease incidence is…
Damping-off General Pythium is considered a ‘weak pathogen’, meaning that it can usually only affect plants that are in a sub-optimal condition or…
seedlings General Pythium is considered a ‘weak pathogen’, meaning that it can usually only affect plants that are in a sub-optimal condition or…
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