• By |Published On: August 31, 2013|Last Updated: February 15, 2014|Categories: Diseases|Tags: |

    Downy mildew is a serious problem in greenhouses especially under cold humid conditions. It is caused by the casual organism Bremia lactucae.  Of the commercial crops, lettuce is most affected, but is also prominent with Endive, Escarole, Chicory, Salsify and Globe Artichoke. The fungus grows very fast and when the symptoms appear on the leaves, [...]

  • By |Published On: August 31, 2013|Last Updated: March 25, 2017|Categories: Diseases|Tags: |

    [/su_collumn] Sclerotinia infects crops such as lettuce, escarole and endives. Tomato fruit are seldom affected. It manifests itself as a damping-off when planted, wilting symptoms also referred to as “drop”. When fruit or leafy crops are transferred and infected by Sclerotinia, it is called as “watery soft rot”. The disease is serious during [...]

  • By |Published On: August 30, 2013|Last Updated: March 25, 2017|Categories: Diseases|Tags: |

    Grey mould is found on lettuce, escarole, endive and globe artichoke. The disease is most important during transit of these crops. The disease is caused by Botrytis cinerea Fr. Grey mould contributes to damping-off, especially in lettuce seedlings. Grey mould symptoms The symptoms are typical of those of damping-off. The fungus is usually identified by [...]

  • By |Published On: August 29, 2013|Last Updated: September 1, 2016|Categories: Diseases|Tags: |

    Anthracnose is caused by the fungus Colletotrichum phomoides and is a common and widely distributed rot of ripe tomatoes. The disease can cause serious losses after the product is harvested. In lettuce it is caused by Marssonina panattoniana (Berl.) Magn. Symptoms of Anthracnose Infected fruits show a small, slightly sunken water soaked circular spot which become [...]

  • By |Published On: August 28, 2013|Last Updated: August 30, 2013|Categories: Diseases|Tags: |

    Fusarium wilt (Fusarium oxysporum) is one of the most damaging fungi that infects tomatoes. Fusarium wilt is a soil borne disease and infects both soil grown tomatoes and greenhouse tomatoes. During high temperatures the disease can cause significant crop damage but during low temperatures there is generally little damage. There are currently two races that [...]

  • By |Published On: August 28, 2013|Last Updated: March 22, 2015|Categories: Diseases|Tags: |

    Verticillium wilt is caused by the fungus Verticillium alboatrum. Quite often verticillium wilt is confused with fusarium wilt. The fungus attacks a wide range of vegetable crops that are used commercially.  Verticillium wilt is more common in areas of the greenhouse that is not sterilized for instance the growth medium and floor. Symptoms of Verticillium [...]