Abstract

Clusterbean [Cyamopsis tetragonaloba (L.) Taub], belongs to the Leguminaceae family and is useful for vegetables and a variety of other purposes. It is a seasonal Kharif crop planted in arid and semiarid zones of India, primarily in Rajasthan, Haryana, Punjab, Gujrat, and portions of Uttar Pradesh and Madhya Pradesh. Guar may also be cultivated well in irrigated locations during the Zaid season. Although several cultivars have been developed from various Indian research organizations that may readily be cultivated in arid and semi-arid environments, some of these types are prone to a variety of phytopathogenic fungal and bacterial infections. These pathogenic diseases have a significant impact on both efficiency and quality. Alternaria blight, anthracnose, Curvularia leaf spot, dry root rot, vascular wilt, charcoal decay, Myrothecium leaf spot and damping off, Ascochyta leaf blight, and bacterial blight are some of the infectious diseases that contaminate and impair the crop. In this review work, a major clusterbean disease affected by a combination of fungal and bacterial diseases is discussed. Disease suppression by biocontrol agents such as Trichoderma harzianum, Trichoderma viride, and Bacillus subtilis is the result of interactions between the plant, the pathogen, the biocontrol agent, the microbial community on and around the plant, and the physical environment, with pathogen growth being inhibited. Essential oils and plant extracts include a slew of bioactive compounds that are toxic to fungus, bacteria, and nematodes. It has been successful. Chemical control, such as carbendazim, topsin M-70, captan, thiram, mancozeb, copper oxychloride, and foliar sprays of carbendazim, topsin M-70, captan, thiram, mancozeb, and copper oxychloride, is an effective method for treating several clusterbean diseases. Non-chemical treatment procedures are time-consuming and ineffective against soil-borne plant infections. Chemical management is an effective method of disease control in agricultural crops. Carbendazim and biocontrol agents Trichoderma viride and T. harizianum were shown to be successful by a group of researchers that studied the compatibility of microbial inoculants with fungicides.