Population Dynamics and Sustainable Management of Sugarcane Leafhopper (Pyrilla perpusilla) in the Baghpat Region of Western Uttar Pradesh

Sugarcane is one of the most important commercial crops in India, particularly in the northern states where it plays a significant role in agricultural income and the sugar industry. However, sugarcane productivity is frequently threatened by insect pests, among which the sugarcane leafhopper (Pyrilla perpusilla) is considered one of the most destructive sap-sucking pests. This study investigates the population dynamics of Pyrilla perpusilla in the Baghpat region of western Uttar Pradesh and evaluates sustainable management strategies to reduce crop damage. Field monitoring was conducted throughout the cropping season to observe seasonal population fluctuations and their relationship with climatic conditions. The results indicate that leafhopper populations begin increasing during late July and reach peak levels during August and September when humidity and moderate temperatures favor rapid multiplication. Pest density declines gradually during October and November as temperatures decrease. Biological control using Epiricania melanoleuca, combined with cultural practices such as removal of infested leaves and maintenance of field sanitation, significantly reduced pest populations. The findings highlight the importance of integrated pest management (IPM) approaches for sustainable sugarcane production while minimizing environmental impacts caused by excessive pesticide use.