Stem borer in sweet pepper plants: symptoms, causes, control

The stem borer is a serious pest that weakens the structure of the sweet pepper plant, threatening production. This article from the “WORLD OF PLANTS” website explains how to identify stem borers on sweet pepper plants and methods of prevention and control.

Causes of stem borers in sweet pepper plants

• Disease name: Stem borer of sweet pepper plant
• Scientific name: Lophobaris Piperis
• Type of disease: insect
• Disease family: Curculionidae

Pepper plants are infected with nymphs and mature borer insects, and the infection occurs in the nursery or after being transferred to the field, where tunnels raised above the soil surface and winding can be seen after irrigating the ground.

Symptoms of stem borers in sweet pepper plants

Mature insects and nymphs bite plants below the surface of the soil, which leads to the plants wilting and dying. The insect can also create holes or tunnels in the pepper fruits that come into contact with wet soil, causing them to rot.

Stem borer development cycle in sweet pepper plants

Borer insects live in the soil until suitable conditions are available for the nymphs to mature and form adults that attack the pepper crop.

Suitable conditions for the spread of stem borers in sweet pepper plants

The borer insect needs high humidity and temperatures ranging between 15-20 degrees Celsius.

Losses resulting from the spread of stem borers in sweet pepper plants

The borer is considered one of the main pests of pepper plants, which can reduce the yield by up to 72%, as it attacks the stem and fruits, reducing the quality and quantity of production.

Controlling stem borers in sweet pepper plants

1. Plow the land well before planting it to get rid of the pest stages present in the soil.
2. Collect and burn the remains of the infected crop.
3. Get rid of infected weeds.
4. Spraying the crop with an insecticide containing triazophos.

Preventive measures for stem borers in sweet pepper plants

1. Installing a good irrigation and drainage system for the field.
2. Good soil fertilization.
3. Use disease-resistant species.

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Sources:

Proceedings of the International Conference on Maritime and Archipelago (ICoMA 2018) – atlantis-press