Wilting in tomatoes and green peppers is caused by the prevalence of root nematodes or wire worms. These feed on the roots of tomatoes or any related vegetables and then infect them with a virus which destroys the xylem and phloem tissues through which water and food are transported. In the end the plant dies of short supply of nutrients thus wilting. The other cause of wilting is bacterial infection such as the tomato bacterial wilt which affects the xylem tissue around the point where the tomato stem attaches itself to the ground.

The remedy for this is to plant tomato varieties that are resistant to bacterial infection such as Vilani F1, or Tengeru.

One should also avoid planting tomatoes in areas with rotting tree roots or with high compost material as it encourages root nematodes infestation.

Leaf curls refer to the shrinking of plant leaves usually seen in pepper and tomatoes. These are caused by pests that damage the leaf tissues when they suck leaf sap. This causes scars or deformation of the leaves leading to leaf curls. Pests like spider mites and aphids are the major sucking pests that cause leaf curls. Spraying with systemic pesticides such as Imidacloprid, Acelamectin and Acteprmid can manage the infestation.

Leaf curls refer to the shrinking of plant leaves usually seen in pepper and tomatoes. These are caused by pests that damage the leaf tissues when they suck leaf sap. This causes scars or deformation of the leaves leading to leaf curls. Pests like spider mites and aphids are the major sucking pests that cause leaf curls. Spraying with systemic pesticides such as Imidacloprid, Acelamectin and Acteprmid can manage the infestation.

Flower abortion is caused by a number of factors:

Infestation of young flowers by pests such as mites which suck sap causing damage to the young leaves.

Nutrient deficiency such as potassium and phosphorus can cause flower abortion. Spraying with foliar flower booster can be of help to replace the nutrient. Top dressing with MoP and TSP will address the issue of deficiencies.

Use of wrong chemicals can cause scorching of the flowers and cause flower abortions. Use agrochemicals that are non-scorching to plants to control abortions. Avoid application of chemicals containing cypermethrines and profenos active ingredients. These are usually responsible for the scorching damage that causes flower abortion.

In addition, spray in the evening hours to minimize chances of scaring away pollinators.