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Horticultural crops :: Spices:: Pepper

Phytophthora foot rot / quick wilt – Phytopthora capsici.

Symptoms:

a. Die back:

  • The aerial branches get infected at any point. At the site of infection of branch, the discoloration occurs and rotting progress upwards and downwards resulting in die-back symptoms.
  • The lateral branches of the affected vines break off at the nodes and fall off.
Die back Infected leaf Collar rot Root rot

b. Foot rot or Collar rot:

  • The stem near the ground level get infected and the rotting and death of vine occurs within 2-3 weeks.
  • The affected portion emits bad odour. The necrosis progress down wards to the underground stem and to the root system.

c. Root rot:

  • The infection starts at main root or at feeder root. The leaves become yellow and defoliate.

Management:

  • Selection of healthy nursery material.
  • Provide good drainage.
  • Soil drenching with 1% Bordeaux mixture after removal of the affected plant.
  • Spraying with 1% Bordeaux mixture (or) COC 0.25% (or) Alitte 0.3%
  • Soil application of neem cake and Trichoderma viride or P. fluorescens\

Image source: http://www.kissankerala.net:8080/KISSAN-CHDSS/English/pepper.htm
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