Pepper Pests and Diseases: Identification and Control Strategies

Common Pepper Pests

Red Spider Mite

• Signs: Yellowing, discoloration on leaf undersides; webbing in severe cases.
• Favored by: High heat, low humidity.
• Prevention: Disinfect structures/soil, remove weeds/residues, avoid excess nitrogen, monitor early.
• Control: Biological (predatory mites), chemical if needed.

White Spider Mite

• Signs: Leaf curling, nerve rippling, dwarfism, intense green color.
• Spreads: Fast in hot, dry greenhouse conditions.
• Chemical control: Summer oil, colloidal/micronized/wettable/ground/sublimed sulfur.

Whitefly

• Damage: Yellowing, weakening (larvae/adults suck sap); sooty mold on honeydew; virus transmission.
• Prevention: Mesh screens, weed/residue removal, crop rotation, yellow sticky traps, biological controls.
• Control: Chemical as last resort.

Aphids

• Types: Green peach, melon, potato aphids—winged and wingless forms.
• Spread: Spring/autumn via winged females.
• Prevention: Mesh screens, clean previous crop debris, yellow traps, biological controls.
• Control: Insecticidal soaps, neem, pyrethrins, or chemicals.

Integrated Approach

Combine cultural, biological, and targeted chemical controls for sustainable pest management in pepper crops.