Fusarium oxysporum f. sp. capsici (Foc) induces wilt disease in chilli and affects its yield. Implementing microorganisms and plant extracts for plant disease management has recently gained momentum as chemical measures pose a serious threat to the environment. Field experiments were conducted over two consecutive years to evaluate the effectiveness of Trichoderma harzianum (either as seed treatment or as soil application) and neem (Azadirachta indica; as seed treatment with leaf extract) alone or in combination, in managing chilli wilt. Untreated plots served as control. Chilli plants were grown in field plots of 2 × 2 m² size, and experiments were organised in complete randomised block design with three replications. In the absence of Foc, T. harzianum (sa) + A. indica (st) increased growth and yield of chilli. In Foc-inoculated plots, both, T. harzianum and A. indica, showed a reduction in disease severity. Disease severity and chlorophyll content were negatively correlated (P ≤ 0.05). During both years, T. harzianum (sa) + A. indica (st) caused the strongest reduction in wilt severity and the highest increase in chlorophyll content, number of fruit/plant, fresh yield/plant, fresh and dry weight as well as plant length. Soil population of T. harzianum increased significantly during crop growth and was higher in plots inoculated with the pathogen. Highest concentrations (4.52 × 10⁴ and 4.87 × 10⁴ cfu/g soil) were found in plot soil where T. harzianum was applied in the soil, whilst maximum increase of Foc (3.02 × 10⁴ and 3.05 × 10⁴ cfu/g soil) was observed in plots that lacked any treatment.

尖孢镰刀菌f。sp。capsici（Foc）在辣椒中诱发青枯病并影响其产量。随着化学措施对环境的严重威胁，采用微生物和植物提取物进行植物病害防治的势头最近有所发展。连续两年进行了田间试验，以评估哈氏木霉（作为种子处理或土壤施用）和印em（印za（Azadirachta indica；用叶提取物作为种子处理））单独或组合处理辣椒青枯病的有效性。未经处理的地块作为对照。辣椒植物生长在2×2 m ^2的田地中大小，并以完整的随机区组设计组织实验，重复三遍。在没有Foc的情况下，哈茨木霉（sa）+  。曲霉（st）增加了辣椒的生长和产量。在接种Foc的地块中，哈茨木霉（T. harzianum）和印度。曲霉（A. indica）均显示出疾病严重程度的降低。疾病的严重程度和叶绿素含量呈负相关（P≤  0.05）。在这两年中，T。harzianum（sa）+ 印度。（st）造成最大程度的青枯病减轻，最大程度增加叶绿素含量，果实/植物数量，新鲜产量/植物，新鲜和干燥重量以及植物长度。哈茨木霉的土壤种群在作物生长过程中显着增加，在接种病原菌的地块中更高。在施有哈茨木霉的 地块土壤中发现最高浓度（4.52×10 ⁴和4.87×10 ⁴ cfu / g土壤），而Foc的最大增加量（3.02×10 ⁴和3.05×10 ⁴  cfu / g）在未经任何处理的地块中观察到）。