Pierce's disease of grapevine

General Xylella fastidiosa is a gram-negative bacterium which is limited to xylem tissue. It has many hosts, many of which show minor or no symptoms. More and more plant species are discovered as host

Fusarium head blight or scab

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 can only infect

Gummy stem blight

General Mycosphaerella cucumis (Didymella bryoniae) is a fungal plant pathogen that causes gummy stem blight. Damage symptoms Mycosphaerella cucumis in cucumber causes brown lesions on the foot and hi

Apple scab

General Venturia inaequalis is an ascomycete fungus that causes apple scab disease Damage symptoms Venturia inaequalis causes apple scab disease, which at first presents itself as lesions on blossoms,

Bacterial wilt, brown rot

General Ralstonia solanacearum is a plant pathogenic bacterium. It is a soil-borne disease and colonises the xylem, causing bacterial wilt and brown rot in a very wide range of potential host plants.

Dwarf bunt

General Tilletia controversa is a plant pathogen. It is a fungus known to cause the smut disease TCK smut in soft white and hard red winter wheats, as well as dwarf bunt. Damage symptoms Tilletia cont

Beet armyworm

General The beet armyworm (Spodoptera exigua) has become a regular problem for horticulturalists due to its resistance to nearly all insecticides, and its ability to develop on wild vegetation during

Cutworms

General Cutworms ( Agrotis spp.) are occurring worldwide. Important species are for instance the black cutworm Agrotis ipsilon and the turnip moth Agrotis segetum . The larvae of these moths usually f

Pink Bollworm

General The pink bollworm is important pest in cotton cultivation. The pink bollworm is native to South Asian countries and has spread to all cotton growing regions of the world. Damage symptoms Shred

Psyllids