Effect of Integrated Management on Ascochyta Blight and Yield of Pea Crop

Author: Ravi Kumar, Prashant Mishra, Ramji Singh, Kamal Khilari, Gopal Singh, Rajendra Singh, Ajita Singh and Abhinav Tiwari

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Abstract

Ascochyta blight caused by Ascochyta pisi Lib. is an important disease of pea. It is a worldwide disease which is appears on leaves, stems and pods of pea and significant economic yield losses. Pea is annual plants with a life cycle of one year, it is a cool-season crop grown in many parts of the world. The total area, production and productivity of pea in India in 2017-18 was 540.48 thousand hectare, 5422.14 thousand MT/ha and 10.0 MT/ha respectively. In present investigation bioagents, biochemicals and fungicides were tested for management of Ascochyta blight disease of pea under field condition. these bioagents, biochemicals and fungicides were used against Ascochyta blight and yield of pea crop during 2021-22 and 2022-23, significant maximum reduction in disease incidence (11.07%), disease severity (4.80%) and increase yield (24.64 qt/ha.) were recorded with Seed Treatment with Thiram @ 3g/ kg seed + two foliar spray of Propiconazole 25%EC @ 0.1% at 45DAS and 75DAS. This was followed by Trichoderma harzianum, Trichoderma viride, Pseudomonas fluorescens, Humic acid, Salicylic acid, Jasmonic acid, Chlorothalonil, Propiconazole and Hexzaconazole treatments that significantly management Whereas, minimum reduced disease incidence (38.21%), disease severity (15.99%) and increase yield (11.59 qt/ha.) was recorded with two foliar spray of Copper oxychloride 50%WP @ 0.25% at 45DAS and 75DAS compared to untreated (61.11%) disease incidence, (32.50%) disease severity and (9.27 qt/ha.) increase yield were found effective for the control of disease and gave higher yield.

Keywords

Ascochyta blight, bioagents, biochemicals, Humic acid, Salicylic acid Jasmonic acid and fungicides

Conclusion

In field experiment, thiram @ 3g as seed treatment was found most effective for reduction of disease incidence, disease severity and enhance the yield and quality of pea crop thereby suggest that farmers may use thiram @ 3g as seed treatment for the management of ascochyta blight disease and enhance the yield and quality of pea crop while alternative of chemical and biochemicals farmers may also use Trichoderma harzianum, Trichoderma viride, Pseudomonas fluorescens, Humic acid, Salicylic acid, Jasmonic acid, Chlorothalonil, Propiconazole and Hexzaconazole treatments that significantly management.

References

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How to cite this article

Ravi Kumar, Prashant Mishra, Ramji Singh, Kamal Khilari, Gopal Singh, Rajendra Singh, Ajita Singh and Abhinav Tiwari (2023). Effect of Integrated Management on Ascochyta Blight and Yield of Pea Crop. Biological Forum – An International Journal, 15(5): 760-764.