Pepper diseases and their control

Major Pepper diseases are:-

1.Phytophthora foot rot / quick wilt – Phytopthora capsici.

pepper foot rot        pepper quick wilt
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.
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 a bad odour. The necrosis progress down wards to the underground stem and to the root system.
c. Root rot:
  • The infection starts at the main root or at feeder root. The leaves become yellow and defoliate.
  • 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\


2.Slow decline / slow wilt: Fusarium, Rhizoctonia and Diplodia along with nematode infection.

slow decline pepper        pepper slow wilt

  • General yellowing of lower leaves which progress upwards.
  • The affected leaves become flaccid and fall off.
  • Tip burn of leaves and die-back of twigs appear. Root knot can be seen in the vine showing the yellowing of leaves. The affected vines gradually die.
  • Vascular browning can be seen.
  • Soil drenching with Copper oxychloride in May– June and September– October.


3.Anthracnose / Pollu disease: Gloeosporiumgloeosporioides

pepper pollu disease       pepper anthracnose

  • Symptoms appear in leaves and stems. Circular or irregular grey spots appear in the leaves.
  • Concentric rings of acervuli appear on the upper surface of the leaves. On the stem the infection appears at the tips spreads downwards and kill the entire vine.
  • When infections occur in leaf axils the spikes become affected and fall off.
  • Berry becomes brown in colour and extends downwards from the upper portion.  And become chaffy (Pollu means hollow thing)
  • Three rounds of spray with Bordeaux mixture 1%




  • TamilNadu Agritech Portal
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