National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Chilli being the commercial cash horticultural crop considered as vegetable and spice crop growing across many states. India is the largest producer and exporter of the chilli and still demand is widening compared to production and supply. Chilli leaf curl virus is the major hurdle in its cultivation and its management is concentrated on effective vector management. The current study was undertaken to assess the efficacy of new and novel insecticide molecules along with bio-insecticides and organic amendments against leaf curl virus vector whitefly. Field experiment was conducted during the rabi 2019-2020. Among the different treatments imposed, minimum disease incidence of (14.05%) was recorded in the treatment T6 involving seed treatment with cyantraniliprole 19.8 % + thiamethoxam 19.8 % FS and foliar spry of cyantraniliprole 10.26 OD, spinetoram 11.6 SC, spiromesifen 22.9 SC, diafenthiuron 50 WP and thiamethoxam 25 WG at 15 days interval starting from 20 days after transplanting of chilli in the main field. An integrated disease management module stood next in T9 with disease incidence of 18.18 per cent, which was statically significant with other treatments. The control plot had reached highest (100%) disease incidence by 90 DAT and had lowest yield of 1.59q/ha. The maximum yield was obtained in T6 (45.88 q/ha) followed by T9 (43.00 q/ha). The highest cost benefit ratio of 4.25 was also recorded in T6 followed by in T9 (3.81) and lowest was in the untreated control plot (1.59). The results could be considered for field application as all the insecticide molecules found effective in T6 are considered safer to environment with least impact. In addition, subsequent spray of different insecticides shall avoid the risk of developing resistance in the insects due to repeated use of same insecticide.
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