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Post Harvest Diseases:: Vegetables:: Brinjal

Fruit rot: Phytophthora nicotianae var nicotianae
Symptom:
  • Fruits - Small, water soaked lesions
  • Skin - discoloration, turns greyish brown, and develop white cottony mycelium in humid weather
  • Rotten parts become depressed and develops wrinkles
  • Rotting spread deep into the pulp and turns brown, watery & soft
  • Rapidly spreads during rainy season
 
  Skin discolouration White cottony mycelium Rotten brinjal
Identification of pathogen:
  • Hyphae - 5 to 6 μm in dia
  • Spherical hyphal swellings are common
  • Zoosporangia - sub hyaline, oviod, pyriform borne on short stalk

Management:

  • Removal and destruction of the affected fruits
  • Spraying the crop with Difolatan (0.3%) thrice at an interval of 10 days effectively controls the disease
Source of Images:
https://u.osu.edu/wayneipm/files/2014/08/pytophthora-on-eggplant-1hjhsgr.jpg
http://bugwoodcloud.org/images/768x512/1578050.jpg

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