Integrating Malathion with Wheat Herbicides for Managing Resistance in Phalaris minor

Author: Anmol, V.S. Hooda, Navish Kumar and B.K. Dhaka

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Abstract

For sustainable wheat production management of Phalaris minor are the major challenge. A field experiment with three replications was conducted at Research Farm of Agronomy, CCS Haryana Agricultural University, Hisar using seven post-emergence herbicides, including clodinafop 12% + metribuzin 42% (RM) (Shagun), clodinafop 9% + metribuzin 20% (RM) (ACM-9), metribuzin, pinoxaden, sulfosulfuron, isoproturon, meso+iodosulfuron, and their integration with malathion at various doses along with weed free and weedy check treatments. After the crop had been sown for 34 days, all of the treatments were applied. When using herbicides alone, pinoxaden consistently outperformed all other herbicides in terms of taller plants and higher yield attributes. However, when using herbicides in combination with malathion, all but malathion fb pinoxaden, the values of these parameters significantly decreased. Wheat plots with no weeds produced a greater grain yield (5764 kg ha-1), which was closely followed by the plots treated with 50g/ha of pinoxaden. The phytotoxicity of various herbicidal treatments decreased over successive intervals, and none of the treatments still had any detectable phytotoxicity at 60 DAT. When herbicides were used in conjunction with malathion as compared to alone, a higher level of weed control efficiency was observed. Pinoxaden applied at 50 g ha-1 was determined to be the most effective treatments for managing weeds and had the greatest B:C of 1.82 followed by malathion fb pinoxaden (1000 fb 50 g ha-1) and clodinafop 9% + metribuzin 20% (RM) (ACM-9) at 174 g ha-1.

Keywords

Phalaris minor, weed, herbicide resistance, wheat, metribuzin, clodinafop, pinoxaden, malathion

Conclusion

According to the current study, use of wheat herbicides both separately and in combination with malathion effectively controlled P. minor by achieving higher WCE (%) and increased the growth and yield of wheat. Compared to their solitary application, spraying herbicides integrated with malathion was observed to be more successful at controlling weeds but due to phytotoxicity, yield penalties were there except in pinoxaden and isoproturon. Therefore, pinoxaden (50 g ha-1) can be used for controlling weeds in wheat crops while increasing wheat production and generating economic returns with better weed control efficiency without having any phytotoxic effect on wheat crop.

References

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How to cite this article

Anmol, V.S. Hooda, Navish Kumar and B.K. Dhaka (2023). Integrating Malathion with Wheat Herbicides for Managing Resistance in Phalaris minor. Biological Forum – An International Journal, 15(5): 81-86.