Late blight


Names

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Late Blightzoom...
Late Blightzoom...
Late Blightzoom...

Scientific Name

Phytophthora infestans

Biology

Description

In wet conditions Late Blght can quickly destroy a whole crop because of its rapid reproduction - total defoliation can be as quick as two to three weeks. Lesion growth is not stopped at veins, therefore, one lesion may take over a whole leaf.  Stems, petioles and leaves will be infected with lesions. Lesions appear first as small flecks, quickly growing larger, and typically are surrounded by a light (yellow) ring. White mycelium will be visible on underside of leaf during times of high humidity.

Occurence

Crops

  • Potatoes

Control

Chemical Control

Products that control

  • Reason
  • Tattoo C

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