Vol. 7, Special Issue 6 (2019)
Effect of planting dates on the population of rice stem borer (Scirpophaga incertulas walker) in eastern Uttar Pradesh
Author(s): SKS Rajpoot, V Prasad, Saurabh Dixit, DK Verma, SP Giri, ML Maurya, RA Singh and T Kumar
Abstract: Experiments were conducted to determine the effects of planting date on incidence of rice stem borer in early, normal and late sown varieties of rice. Two rice varieties NDGR 201(non-aromatic) and Pusa Basmati-1 (aromatic) were used. For each date of planting, separate nursery of each variety were raised and transplanted same age of seedling at different dates in 500 m2.field. The data on the incidence of insect pests and yield performances of rice varieties were studied. Rice yellow stem borer Scirpophaga incertulas Walker (Lepidoptera: Pyralidae), was the most important insect pest of rice, attacking all stages of the crop causing substantial losses in early, medium and late-sown crops, and degree of stem borer infestation depended on the planting time. The pest incidence was found least in early sown crop as compared to normal and late sown. The three planting times were the early 1st July, 2nd the normal planting 15th July and 3rd planting 31stJuly. The present study implies that adjustment of planting time is the most feasible effort to reduce stem borer infestation. The highest yield was observed in early sown crop in variety NDGR 201.Hence the use of tolerant rice varieties along with early sowing is recommended to protect the crop from yellow stem borer infestation.
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How to cite this article:
SKS Rajpoot, V Prasad, Saurabh Dixit, DK Verma, SP Giri, ML Maurya, RA Singh and T Kumar. Effect of planting dates on the population of rice stem borer (Scirpophaga incertulas walker) in eastern Uttar Pradesh. International Journal of Chemical Studies. 2019; 7(6): 825-827.
