Evaluation and Validation of IPM Modules in Potato Against Invasive Leaf Miner, Liriomyza huidobrensis

• Published in: Potato research 2024-03, Vol.67 (1), p.221-235
• Main Authors: Monica, S, Vinothkumar, B
• Format: Article
• Language: English
• Subjects: Agricultural practices; Agriculture; Attractants; Biomedical and Life Sciences; Damage; Farmers; Insecticides; Integrated pest management; Leaves; Life Sciences; Liriomyza huidobrensis; Modules; Pest control; Plant Genetics and Genomics; Plant Sciences; Plant Systematics/Taxonomy/Biogeography; Potatoes; Spraying
• ISSN: 0014-3065; 1871-4528
• DOI: 10.1007/s11540-023-09630-y

In 2021, experiments were carried out in the Nilgiris district’s Ooty and Kotagiri locations to evaluate and validate an integrated pest management (IPM) module for the potato leaf miner, L. huidobrensis , in comparison to farmer methods. The assessment study involved evaluating the effectiveness of various botanicals, insecticides, and attractants against leaf miners in two places mentioned above in the Nilgiris district. Effective botanicals and attractants were combined with insecticides based on the evaluation trial’s outcomes, and two IPM modules were developed and compared to farmer practices. Module I comprised of implementation of yellow sticky trap, spraying of botanical, R. graveolens @ 5% and insecticide, cyantraniliprole 10.26 OD @ 75 ml ha −1 , whereas, in module II, the components were the implementation of yellow sticky trap, spraying of botanical, R. graveolens @ 5% and insecticide, chlorantraniliprole 18.5 SC @ 30 ml. ha −1 . Module III was farmer’s practice and module IV was a control (untreated plot). The basal components of the modules were selected from a preliminary evaluation study which showed the components, viz. yellow sticky trap (attractant), Ruta graveolens @ 5% (botanical), cyantraniliprole 10.26 OD @ 75 g a.i. ha −1 and chlorantraniliprole 18.5 S @ 30 g a.i. ha −1 (insecticide) to be effective among various treatments tested. The IPM modules were compared by assessing percent leaf damage caused by the leaf miner, and yield and cost economics were also calculated. Module I was found to be the promising one with 9.89% mean percent damage followed by module II (9.90%), and both were found to be on par with each other. From the result, it was concluded that module II was the most efficient module with the highest benefit–cost ratio of 2.47 followed by module I with a benefit–cost ratio of 2.37. Thus, by implementing these IPM modules, the management of leaf miner L. huidobrensis in potato can be efficiently carried out with less cost of protection.