TNAU Agritech Portal
Home | About Us | Success Stories | Farmers Association | Farmers' Innovation | Publications | Contact

Post Harvest Diseases:: Vegetables:: Cucurbits

Belly rot: Rhizoctonia solani
Symptom:
  • Dark brown water-soaked decay on the side of the fruit in contact with the soil
  • Followed by a yellowish-brown discolouration of the fruit surface
  • Entire fruit rot within few days
Dark brown water soaked necrosis Yellowish brown discolouration Rotten cucumber with gummy ooze Infected cucumbers
Identification of pathogen:
  • Produces pycnidia and sclerotia
  • Pycnidiospores - hyaline, single celled, ovate to ellipsoid

Mode of spread and survival

  • R. solani overwinters in soils as mycelia on plant debris and as dark brown sclerotia that remain in soil for long periods
Management:
  • Pre-harvest sprays of the fungicides- Azoxystrobin, Chlorothalonil,Thiophanate-methyl
  • Holding the fruit at 10°C (50°F) will retard disease development during transit and storage
Source of Images:
https://onvegetables.files.wordpress.com/2012/07/dsc_0149.jpg
https://www.plantvillage.com/en/topics/cucumber/infos/diseases_and_pests_description_uses_propagation

Home | About Us | Success Stories | Farmers Association | Farmers' Innovation | Publications | Contact Us

© TNAU 2008 - 2024 All Rights Reserved.