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Post Harvest Diseases:: Vegetables:: Cucurbits

Phytophthora Fruit Rot: Phytophthora capsici

Symptom:
  • Fruit rot of processing pumpkin caused by P. capsici
  • Lesions appear on fruit surface
  • Fruit rot developed on the side contacting the soil
  • Fruit rot as a result of falling an infected leaf on fruit
  • Severely infected fruits are collapsed.
Cucumber phytopthora rot Infected squash Leisons on squash surface
Pumpking phytopthora rot Bottle gourd phytopthora rot
Management:
  • Rotation with non-host crops is recommended.  
  • Other hosts are pepper, tomato, eggplant, cocoa, and macadamia.
  • Manage soil moisture by selecting well-drained fields, avoiding low-lying areas, subsoiling, preparing dome-shaped raised beds for non-vining crops, and not over irrigating.
  • Movement in soil on equipment is probably an important means by which Phytophthora has been spread between fields and may account for disease occurrence in fields with no history of susceptible crops.
Source of Images:
http://u.osu.edu/miller.769/files/2015/01/Disease-Guide-Final-010715-1omq239.pdf
http://www2.ca.uky.edu/agcollege/plantpathology/ext_files/PPFShtml/PPFS-VG-4.pdf

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