METOS by Pessl instruments

  • ОТРАСЛИ
    • СЕЛЬСКОЕ ХОЗЯЙСТВО — КУЛЬТУРЫ
    • СЕЛЬСКОЕ ХОЗЯЙСТВО — ЖИВОТНОВОДСТВО
    • УМНЫЙ ГОРОД
    • OEM
  • Что мы предлагаем
    • Оборудование
      • Метеостанции & регистраторы данных
        • iMETOS VWS
        • MiniMETOS SOIL
        • LoRATH
        • LoRAIN
        • nMETOS
        • µMETOS NB-IoT
        • μMETOS SOIL LoRa
        • μMETOS CLIMA LoRa
        • iMETOS 3.3
        • iMETOS ICA10 NB-IoT
        • iSCOUT®
        • CropVIEW®
        • iMETOS WorkTrack
        • iMETOS MobiLab
        • Dualex
        • iMETOS SoilGuard
        • SolAntenna
        • METOS® AOS
      • Датчики
    • Web приложения
    • Сервисы
      • satellite license
      • iMETOS VWS
      • Мониторинг погоды
      • Прогнозирование погоды
      • Водное хозяйство
      • Модели заболеваний
      • Мониторинг насекомых
      • Удаленный мониторинг культур
      • Управление ресурсами
      • Управление питанием растений
    • Решения для культур
  • Поддержка
    • Поддержка
    • Return Policy
    • Руководства
    • Обучение
  • Конта́кт
    • контакт
    • дистрибьюторы
    • присоединиться к команде
  • О нас
    • Команда
    • История
  • Новости

Извините, этот техт доступен только в “Американский Английский” и “Европейский Испанский”. For the sake of viewer convenience, the content is shown below in this site default language. You may click one of the links to switch the site language to another available language.

 

BLUEBERRY DISEASE MODELS

 

  • BLUEBERRY RIPE ROT — Colletotrichum acutatum

BLUEBERRY ANTHRACNOSE

TABLE OF CONTENT

• Symptoms
• Disease cycle
• Literature

The fungal pathogen Colletotrichum acutatum causes Blueberry Anthracnose (Ripe Rot) on pre and post-harvest fruit of highbush blueberry. The disease occurs in all blueberry production areas and has a great impact on reducing the shelf life of fruits and having a poor quality of fresh fruits on the market.

Symptoms

Blueberrys are susceptible to the fungal pathogen. The berries don`t develop symptoms until they are mature or ripe. The first symptoms are seen near the end of the blossom on ripe fruits as dark, sunken areas. These infected area may shrivel with time. Within a few days bright salomon- orange coloured, wet spore masses are seen on these sunken areas. The sticky spore masses spread to other berries by rain, irrigation, splashing water, wind and contacts during harvest. The fungal pathogen infects all stages of the plant: leaves, buds, twigs and canes. New shoots and leaves may become blighted in the spring. Twigs are becoming infected by transferring spores from infected buds. Dark brown, canker- like lesions with fruit bodies develop on young canes.

Disease cycle

The fungal pathogen overwinters in twigs and flower buds, spurs and trusses. In spring the fungus produce spores, which are dispersed by rain, irrigation and water- splashes. Infections occur at a temperature optimum of 12- 27°C and a leaf wetness period of more than 12 hours. The fruit can be infected at any time, although infections are just visible (symptoms seen) when the fruit is mature. The fungus enters the fruit and remains dormant until the berry starts to ripen. At this time the fungus starts to colonize the infected area and produce enzymes with destroy the plant cell walls. These damaged cells loose their contents and integrity (symptoms are seen as sunken areas and shrivelled). Spent fruit trusses could be infected after harvest. In FieldClimate weak, moderate and severe Infection are calculated in dependance of the parameters temperature, leaf wetness and precipitation. Whenever 100 % of infection are reached the conditions for an weak/moderate or severe infection have been fullfilled.

Literature

Peres N.A., Timmer L.W., Adaskaveg J.E., Correll J.C. (2005): Lifestyles of Colletotrichum acutatum. Plant Disease, Vol.89 (8), 784-796.
Wharton P.S., Dièguez-Uribeondo(2004): The biology of Colletotricum acutatum. Anales del Jardin Botanicode Madrid 61(1).
Gillett J.M., Schilder A. C. (2009): Environmental Requirements for Infection of Blueberry Fruit by Colletotricum acutatum. Proc. IxthIS on Vaccinium.

 

years35

  • Distributors
  • Join us
  • Пресс-релизы
  • Условия пользования
  • Impressum
  • Jadeberg Partners