Angular leaf spot

General Xanthomonas fragariae is a leaf spot disease found in strawberry. Damage symptoms Xanthomonas fragariae initially causes small, water-soaked lesions on the underside of the leaf. They enlarge

Botrytis

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

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. Damage symptoms The first symptoms of a cottony soft root ( Sc

False codling moth

General False codling moth ( Thaumatotibia leucotreta ) is native to sub-Saharan Africa and is found in all citrus production areas in Southern Africa. It also occurs on some of the Indian and Atlanti

Cotton aphid

General The cotton aphid ( Aphis gossypii ) is an extremely polyphagous aphid found on more than 700 plant species. Crop plants attacked by this aphid include cotton, citrus, coffee, cocoa, eggplant,

Tobacco aphid

General The tobacco aphid ( Myzus persicae subsp. nicotianae ) probably evolved from the peach potato aphid in the Far East and is a key pest of tobacco crops in both the United States and South Ameri

Western flower thrips

General The western flower thrips (Frankliniella occidentalis) is currently the most damaging thrips species in many greenhouse crops. The western flower thrips (Frankliniella occidentalis) can be fou

Tobacco whitefly

General The tobacco whitefly ( Bemisia tabaci ) belongs to the family Aleyrodidae , and the sub-family Aleyrodinae . This insect was first identified on tobacco in Greece in 1889, hence the name tabac

Onion thrips

General The onion thrips (Thrips tabaci) is distributed throughout the world. It is found outdoors on many plants and particularly damaging on onions, leek, and in greenhouses on cucurbits, tomato, sw

Impatiens thrips

General Impatiens thrips (Echinothrips americanus) is an increasing problem in greenhouse cultivation, having spread to many countries within the last 30 years. The thrips have mostly been able to spr