Pepino mosaic virus

General Pepino mosaic virus (PepMV) is a single-stranded RNA-virus (Potexvirus genus, Fexiviridae family) that was originally isolated from pepino ( Solanum muricatum ), a South American melon-like fr

Root rot of carrot

General Black spots on cold-stored carrots are a major problem and can lead to significant postharvest losses Several different fungal pathogens cause similar symptoms, which are collectively known as

Fusarium spp.

Fusarium spp. is a group of soil-borne fungi with many different species. Fusarium is widespread and can infect a range of host crops. Many species are considered weak pathogens and can only infect wo

Grey mould

General Grey mould ( Botryotinia fuckeliana / Botrytis cinerea ) is a commonly found fungus in many environments. It survives in plant parts like bulbs and crop residues or as sclerotia (drought- and

Fusarium wilt

Fusarium wilt General Fusarium is a group of soil-borne fungi with many different species. Fusarium is widespread and can infect a range of host crops. Many species are considered weak pathogens and c

Black rot of carrots

Alternaria radicina Black rot of carrots General The only known stage in all Alternaria species is the asexual stage. Conidia and mycelium overwinter in the soil and on crop residues and cause primary

Downy mildew of Cucurbits

Pseudoperonospora cubensis Downy mildew of Cucurbits General Pseudoperonospora cubensis is a plant pathogen causing downy mildew on cucurbit crops like cucumber, cantaloupe, pumpkin, watermelon and sq

Black leg of seedlings

Pythium ultimum Black leg of seedlings General Pythium is considered a ‘weak pathogen’, meaning that it can usually only affect plants that are in a sub-optimal condition or suffer from stress, caused

Cottony soft rot

Sclerotinia sclerotiorum Cottony soft rot General Sclerotinia sclerotiorum, also known as cottony soft root, is a plant pathogenic fungus. It has a very wide range of host plants. Life cycle and appea

Early blight

Alternaria solani Early blight General The only known stage in all Alternaria species is the asexual stage. Conidia and mycelium overwinter in the soil and on crop residues and cause primary infection