Eco-friendly Management with respect to Yellow Stem Borer (Scirpophaga incertulas Walker) on Rice

Author: Ganga Bhavani Batta, K.L. Paikra, G.P. Paikra, P.K. Bhagat, Sachin Kumar Jaiswal and Priti Singh

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Abstract

Farmers highly rely on synthetic insecticides against destructive pests, the excessive use of which in the field results in severe adverse effects on the agroecosystem, human health and wildlife. So, research was conducted at Agriculture Research Farm of Raj Mohini Devi College of Agriculture and Research Station Ambikapur, (C.G.) during Kharif 2022 to manage yellow stem borer of rice in an environmentally responsible manner. The research followed RBD with 4 replications and 5 treatments using variety MTU-1010. The treatments are T1 Botanical-insecticides (Neemazal 1% EC + Eucalyptus oil + Cartap hydrochloride 50% SC), T2 Botanical – insecticides (Neemazal 1% EC + Neem oil + Triflumezopyrim 10% SC), T3 All botanicals (Neemazal 1% EC + Eucalyptus oil + Neem oil), T4 All insecticides (Chlorantraniliprole 0.4G + Cartap hydrochloride 50% SC + Triflumezopyrim10% SC) and untreated control. The results shown that T4 All insecticides (Chlorantraniliprole 0.4G + Cartap hydrochloride 50%SC + Triflumezopyrim10% SC) recorded with lowest per cent of dead heart and white ear head (3.7% DH and 2.0% WE, respectively) followed by T3 All botanicals (Neemazal 1% EC + Eucalyptus oil + Neem oil) with 3.75% DH and 2.4% WE while untreated plot recorded with highest 6.9% DH and 6.1%, WE, respectively. Similarly, the highest yield and net returns recorded from treatment T4 All insecticides (Chlorantraniliprole 0.4G + Cartap hydrochloride 50% SC + Triflumezopyrim 10% SC) i.e., 42 q ha-1 and Rs. 54796 ha-1, respectively followed by T3 All botanicals (Neemazal 1% EC + Eucalyptus oil + Neem oil) with 39.5 q ha-1 and Rs.54714 ha-1, respectively while the lowest yield and net returns recorded from untreated plot with 33 q ha-1 and Rs. 39795 ha-1, respectively. Whereas due to low cost of treatment, T3 All botanicals (Neemazal 1% EC + Eucalyptus oil + Neem oil) recorded with highest Cost to Benefit ratio i.e., (1:1.74) followed by T4 All insecticides (Chlorantraniliprole 0.4G + Cartap hydrochloride 50%SC + Triflumezopyrim10% SC) with (C: B -1:1.49).

Keywords

Eco-friendly management, rice yellow stem borer, yield

Conclusion

The efficacy of some eco-friendly insecticides was also evaluated in order to provide better protection to rice against yellow stem borer infestation and also to protect the environment from excessive usage of insecticides. The results revealed that treatment T4 All insecticides (Chlorantraniliprole 0.4G + Cartap hydrochloride 50% SC + Triflumezopyrim 10% SC) was found to be most effective treatment with lower per cent of dead heart and white earhead (3.7 and 2.0 %, respectively) followed by treatment T3 All botanicals (Neemazal 1% EC + Eucalyptus oil + Neem oil) with (3.75% DH and 2.4% WE, respectively) and T1 Botanical-insecticides (Neemazal 1% EC + Eucalyptus oil + Cartap hydrochloride 50% SC) with (3.9% DH and 2.5%WE, respectively). Whereas untreated plot recorded with maximum number of dead heart (6.9%) and white earhead infestation (6.1%). Taking into account economics of treatments against yellow stem borer in rice, clearly revealed that all the treatments recorded good yield and net return over untreated control. The maximum yield and net return were obtained from T4 All insecticides (i.e., Chlorantraniliprole 0.4G + Cartap hydrochloride 50% SC + Triflumezopyrim 10% SC) with (42 q ha-1and Rs.54796 ha-1) followed by T3 All botanicals (i.e., Neemazal 1% EC + Eucalyptus oil + Neem oil) (39.5 q ha-1and Rs. 54714 ha-1) respectively. Considering cost of pesticides, T3 All botanicals (i.e., Neemazal 1% EC + Eucalyptus oil + Neem oil) proved best with maximum C:B ratio (1:1.74) followed by T4 All insecticides (i.e., Chlorantraniliprole 0.4G + Cartap hydrochloride 50% SC + Triflumezopyrim 10% SC) (1:1.49) and T1 Botanical-insecticides (i.e., Neemazal 1% EC + Eucalyptus oil + Cartap hydrochloride 50% SC) (1:1.45) which were significantly superior over all the treatments. Further analysis of data also revealed that untreated control was inferior regarding C:B ratio (1: 1.23). The current findings were in support with Kulagod et al. (2011) recorded that there was significant dead heart difference among the treatments at 5 days after spray. Cartap hydrochloride 50%SP @1g/l recorded significantly lowest per cent dead heart. Justin and Preetha (2014) revealed that chlorantraniliprole 0.4 GR was proved to be the best among all the tested insecticides with reduced stem borer infestation and recorded higher grain yield. While Neem oil exerted minimum reduction percentage of stem borer. Based on the present studies, it is proven that treatment T3 All botanicals (i.e., Neemazal 1% EC + Eucalyptus oil + Neem oil) is best with maximum C:B ratio, net returns and less environmental impact, so it can be recommended for farmers based on results of further investigation.

References

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How to cite this article

Ganga Bhavani Batta, K.L. Paikra, G.P. Paikra, P.K. Bhagat, Sachin Kumar Jaiswal and Priti Singh (2023). Eco-friendly Management with respect to Yellow Stem Borer (Scirpophaga incertulas Walker) on Rice. Biological Forum – An International Journal, 15(9): 969-974.