6 dangerous diseases of pepper and how to deal with them

In order for the bushes of pepper in your garden to be strong, healthy and bring excellent harvest, it is necessary to regularly prevent diseases and fight them in time. We tell how to do it.

Pepper is a valuable and tasty vegetable, but, unfortunately, when grown in a country garden, it often behaves capriciously. To secure your future harvest from diseases and viruses, take note of this table and take care of the pepper correctly!

DiseaseSymptoms Prevention and treatment

Bacterial spotting

  • Small watery points on the back of the leaves
  • The spots darken with time, increasing to 1-2 mm in diameter, a yellow watery rim appears around
  • On the outside of the leaf, the spots are slightly depressed.
  • Strongly affected leaves look like tattered
  • Bulging light brown longitudinal ulcers form on the stems.
  • Use seeds from proven manufacturers
  • Picker seeds not treated by the manufacturer before sowing
  • If signs appear, spray with 1% copper sulfate solution
  • Do not allow water to enter the leaves during watering.

Bacterial cancer

  • Small ulcers and vesicles on the leaves and stems
  • Light brown spots with dark edging on the shoots and leaves
  • Dark brown spots with light edging on the fruit
  • Over time, small spots merge into large
  • The plants gradually fade
  • Use seeds from proven manufacturers
  • Picker seeds not treated by the manufacturer before sowing
  • To air the greenhouse
  • Do not allow temperature and humidity to rise
  • Water the pepper just under the root.
  • Remove diseased plants and for the prevention of plants growing next to them

Tobacco mosaic virus

  • Yellow spots that form on the leaves as after engraving
  • Lag of seedlings in growth
  • Dying off tissue along the main veins
  • Dark stripes on the stems and petioles
  • Reducing the size of the fruit
  • Calcify seeds before sowing (2 days - at 50 ° C, another day - at 70 ° C)
  • Soak the seeds for 10 minutes in a 2% sodium hydroxide solution (caustic soda, caustic soda)
  • Remove and burn all diseased plants (the virus can persist in dry leaves up to 50 years)


  • Seeds do not sprout
  • Seedlings fade due to root damage
  • To conduct pre-sowing tillage with a dark solution of potassium permanganate and Fitosporin-M
  • Cover seeds no deeper than 1.5 cm
  • Deepen the seedlings into the ground to the point of growth so that the earth does not touch it
  • Do not water the plants too plentifully.
  • Prevent overcooling of plants.

Gray rot

  • Olive-gray ulcers on fruits, leaves, shoots
  • Often aired the greenhouse
  • Spray the plants with garlic solution (30 g of minced garlic per bucket (10 l) of water, leave for 2 days)
  • With a small lesion focus - sprinkle ulcers with a mixture of copper sulphate and lime (1: 2)

(stem and root rot)

  • Watery brown-black spots at the base of the stem
  • Spots may appear in the nodes of the trunk, on the fruit
  • Soak the seeds before sowing in a solution of aloe juice with water (1: 1)
  • Do not thicken landing
  • Do not water the plants too plentifully.

To further increase the chances of a good harvest of beautiful, tasty and healthy peppers, try to choose disease-resistant varieties and hybrids. For example, almost no ill plants varieties Agapovsky, Big Papa, Yellow Bell and hybrid Isabella F1.

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