Spot blotch disease caused by the fungus Bipolaris sorokiniana (teleomorph Cochliobolus sativus) is one of the most important fungal diseases of barley. Considering the hazardous effects of fungicidal sprays, an eco-friendly approach was adopted to manage this disease by using botanicals, biocontrol agents and systemic acquired resistance (SAR) chemicals on two barley cultivars, PL426 and PL807. Under in vitro conditions, a 15% solution of neem (Azadirachta indica) and tulsi (Ocimum tenuiflorum) inhibited the growth of B. sorokiniana by 65.48% and 45.37%, respectively. For the bio-agents, Trichoderma harzianum proved to be the best with 60.82% growth inhibition of the pathogen followed by T. viride. The SAR chemicals, maximum disease control was observed when the potted plants were sprayed with salicylic acid (SA) at 0.03% concentration and ß-amino-n-butyric acid (BABA) at 0.3% concentration. Similar results were observed for botanicals, bio-control agents and SAR chemicals when tested under field conditions. Considering the economics of these environmentally safe options, it is concluded that the bio-control agent (T. harzianum), plant extracts (neem and tulsi) and SAR chemical (SA) can be used as foliar spray treatments for eco-friendly management of spot blotch of barley in integrated disease management programmes.

由真菌Bipolaris sorokiniana（teleomorph Cochliobolus sativus）引起的斑斑病是大麦最重要的真菌病之一。考虑到杀真菌喷雾剂的危害性，采用了一种生态友好的方法来控制这种疾病，方法是在两种大麦PL426和PL807上使用植物药，生物防治剂和系统获得性抗药性（SAR）化学药品。下在体外条件下，印度楝树的15％溶液（印楝）和图尔西（圣罗勒）抑制的生长B. sorokiniana分别65.48％和45.37％。对于生物制剂，哈茨木霉被证明是最好的，对病原体的生长抑制率达60.82％，其次是紫薇。当用0.03％浓度的水杨酸（SA）和0.3％浓度的ß-氨基-正丁酸（BABA）喷洒盆栽植物时，可以观察到SAR化学品最大的病害防治效果。在野外条件下进行测试时，对植物药，生物防治剂和SAR化学品观察到了相似的结果。考虑到这些对环境安全的选择的经济性，得出的结论是，可以将生物防治剂（T. harzianum），植物提取物（印em和图尔西）和SAR化学品（SA）用作叶面喷洒处理剂，以对在综合疾病管理计划中发现大麦斑点。