Evaluation of Insecticides for the Management of Leaf Folder in Rice Crop

Author: B. Sampath Reddy, B.N. Chaudhari and P.V. Sanap

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Abstract

The present study on evaluation of insecticides for the management of leaf folder in rice crop was undertaken at Agriculture Research Station, Sakoli, Bhandara district during kharif 2021. The experimental plot was laid out in Randomized Block Design (RBD) incorporating seventeen treatments along with control consisting of seed treatment of Thiamethoxam 25 % WG, nursery application at one week before of Carbofuran 3% CG, Fipronil 0.3 % GR, Chlorantraniliprole 0.4 % GR, main field application at 22 DAT of Carbofuran 3 % CG, Fipronil 0.3% GR, Chlorantraniliprole 0.4% GR, Cartap hydrochloride 4 % GR, Chlorpyrifos 10% GR, Thiamethoxam 25% WG (seed treatment) + Fipronil 0.3 % GR (main field), Thiamethoxam 25% WG (seed treatment) + Chlorantraniliprole 0.4 % GR (main field), Thiamethoxam 25% WG (seed treatment) + Cartap hydrochloride 4 % GR (main field), Thiamethoxam 25% WG (seed treatment) + Chlorpyrifos 10 % GR (main field), Fipronil 0.3% GR (nursery) + Chlorantraniliprole 0.4 GR % (main field), Fipronil 0.3% GR (nursery) + Cartap hydrochloride 4 % GR (main field), Fipronil 0.3 % GR (nursery) + Chlorpyrifos 10 % GR (main field). The results clearly revealed that Chlorantraniliprole 0.4% GR (main field) was most promising in controlling gall midge with 1.56 % damaged leaves and was at par with treatments Thiamethoxam 25% WG (seed treatment) + Chlorantraniliprole 0.4% GR (main field) (1.58 % damaged leaves), Thiamethoxam 25% WG (seed treatment) (1.62 % damaged leaves), Fipronil 0.3% GR (nursery) + Chlorantraniliprole 0.4% GR (main field). Highest yield was noticed in Chlorantraniliprole (main field) (44.33 q/ha) followed by Fipronil 0.3% GR (nursery) + Chlorantraniliprole 0.4 % GR (main field) (38.59 q/ha) and Chlorpyrifos 10% GR (main field) (38.22 q/ha). ICBR is highest for Carbofuran 3% CG (nursery) followed by Chlorantraniliprole 0.4 %GR (nursery), Fipronil 0.3% GR (nursery), Chlorpyrifos 10% GR (main field) and Thiamethoxam 25% WG (seed treatment).

Keywords

Leaf folder, Capsulated granules, Damaged leaves

Conclusion

The leaf folder was found to be the serious pests of paddy. From the data it can be concluded that Chlorantraniliprole 0.4 % GR (Main Field) is effective in management of leaf folder. Highest grain yield was recorded in plot treated with Chlorantraniliprole 0.4 % GR (Main Field) followed by Fipronil 0.3% GR (nursery) + Chlorantraniliprole 0.4% GR (main field), Chlorpyrifos 10% GR (main field), Fipronil 0.3% GR (nursery) + Chlorpyrifos 10% GR (main field), Thiamethoxam 25% WG (seed treatment) + Chlorpyrifos 10% GR (main field). Among different treatments, incremental cost benefit ratio in Carbofuran 3% CG (Nursery) was found highest followed by Chlorantraniliprole 0.4% GR (nursery), Fipronil 0.3% GR (nursery), Chlorpyrifos 10% GR (main field). Thus, the above insecticides are the better option to manage leaf folder of paddy.

References

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How to cite this article

B. Sampath Reddy, B.N. Chaudhari and P.V. Sanap (2023). Evaluation of Insecticides for the Management of Leaf Folder in Rice Crop. Biological Forum – An International Journal, 15(1): 182-188.