The results showed that the main diseases and insect pests of coloured sweet pepper were powdery mildew, phytophthora blight, root rot, sun scorch, Liriomyza, Laphygma exigua, etc.

• 调节播种期，适度密植，防止积水，平衡施肥，生物防治，辅以高效低毒的化学药物防治，取得较好的效果。