Pepper Materials from AVRDC.

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Production Pest management Harvest and postharvest

Producing peppers

Grafting peppers

Variety testing


Harvest and postharvest

Seed production

Producing Pepper

Grafting Pepper

Variety testing

Pest Management

  • General symptoms: Sucking pests cause wilting, stunting, curling or distortion of new growth, spots or stippling of the leaf surface, or a sticky substance or black fungal growth on the upper leaf surface. Chewing pests cause holes in leaves, silvering of leaf tissue, complete removal of leaf tissues and burrowing in or around plant stems, branches or trunks.

Insects commonly affecting peppers (AVRDC)

Typical Symptoms

  • Aphids
  • Fruitworm

Common Diseases


  • General symptoms: Viruses often cause leaf distortion, stunting and linear color contrasts - e.g., green and yellow striping. Insects often spread the virus.

Virus diseases commonly affecting peppers (AVRDC)


  • General symptoms: Bacteria often causes watersoaking, wilts leaf and fruit spotting and rotting.
    Note: If you place a diseased sample in a glass of clear water, you can often see the bacterial "exudate" leaking from the plant)

Bacteria Diseases commonly affecting Peppers (AVRDC)


  • General symptoms: Fungi often cause molds, mildews, wilts and leaf spotting. With close observation you can actually see signs of fungal in lesions.

Fungus Diseases


  • General symptoms: Oomycetes often cause rots, wilts and blights.

Oomycete Diseases

Other factors causing disease-like symptom

  • General symptoms: Other factors can cause spots and rots on fruit (Sunscald and Blossom End Rot) and fruit deformities

Other Factors

Harvest and Postharvest

Seed Production

Saving Your Own Vegetable Seeds A Guide For Farmers from PX8