Studies on Population Fluctuation of Mango Hopper Amaritodus Atkinsoni (Leth) and Their Management in Western Plain Zone of U.p.

Abstract

The field experiment was conducted entitle “Studies on population fluctuation of Mango hopper Amaritodus atkinsoni (Leth) and their management in Western Plane Zone of U.P.” in randomized block design with three replications of nine treatments for a crop season of the year 2018-19 ” at HRC, Siwaya farm of Sardar Vallabhbhai Patel University of Agricultural and Technology, Meerut U.P., India. The mango leaf hopper started appearing from the last week of march i.e. 10th standard week on the leaf. The population at this stage was 0.68 hopper/5 panicles the mean temperature 18.23oC and RH 62.04 per cent during 2018-19 and the effect of different insecticides/biopesticides treatment on the mortality of mango leaf hopper Amritodus atkinsini in mango crop is presented in the results revealed that all the treatments were significantly effective in controlling mango leaf hopper as compared to control. The mortality ranged from 2.81 to 12.30 during in the year 2018-19 before the spray of treatments, it did not differ significantly to each other. At the time of second spray the effect of different insecticides/biopesticides treatment on the mortality of mango leaf hopper Amritodus atkinsini in mango crop is presented in the results revealed that all the treatments were significantly effective in controlling mango leaf hopper as compared to control. The mortality ranged from 1.67 to 11.30 during in the year 2018-19 before the spray of treatments, it did not differ significantly to each other.The final yields of mango fruits as a result of application of different treatments. All the treatments resulted in higher fruit yield and were proved significantly superior over control during the 2018-19 years of application. The maximum fruit yield 144.42 q/ha was obtained during 2018-19 by the treatment with dinutefuran 50% WP@ 0.005 and imidacloprid 17.8 SL @ 0.005% was second most effective treatment with fruit yield of 240.17 q/ha during year 2018-19. Treatment cost and marketable value of the produce. It can be seen from the data pertaining to net income (Rs./ha) in different treatments. The profit in different treatments are in increasing order of dinutefuran 50% WP @ 0.005 > imidacloprid 17.8 SL @ 0.005% > dimethoate 30 EC @ 0.005% > thiamethoxam 50 WG @ 0.01% > neemal oil @ 1500 PPM > NSKE @ 5% > Metarhizium anisopliae 1.0⨯108 cfu/ml > B. bassiana 1.0 ⨯108 cfu/ml, However, Dinutefuran 50% WP@ 0.005 and imidacloprid 17.8 SL @ 0.005% were found very effective in controlling the mango leaf hopper Amritodua atkinsoni.