Title: “MANAGEMENT OF SHOOT FLY (Atherigona soccata) ON KHARIF SORGHUM”Title: “MANAGEMENT OF SHOOT FLY (Atherigona soccata) ON KHARIF SORGHUM”
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Date
2022-07-29
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Publisher : Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola, Maharashtra.
Abstract
Abstract: The present investigation entitled ‘Management of shoot fly (Atherigona soccata) on Kharif sorghum’ was carried out under field conditions at Sorghum Research Unit, Dr. PanjabraoDeshmukhKrishiVidyapeeth, Akola during Kharif 2020 to ascertain the effect of chemical insecticide seed treatments and neem seed extract sprays on shoot fly incidence and to work out the effective and economic treatment for management of shoot fly. Experiment with eight treatment schedules viz., seed treatment with NSE 5 % spray 7 DAE (T1), NSE 5 % spray 7 DAE and 11 DAE (T2), NSE 5 % spray 7 DAE, 11 DAE and 14 DAE (T3), seed treatment with imidacloprid 48 FS @ 12 ml/kg seed followed by quinalphos 25 EC @ 2 ml/lit spray 15 DAE (T4), seed treatment with imidacloprid 48 FS @ 12 ml/kg seed (T5), seed treatment with the thiamethoxam 30 FS @ 12 ml/kg seed (T6), NSE 5 % spray 7 DAE and 18 DAE (T7) and untreated control (T8) with three replications was conducted. Observations on number of shoot fly eggs and dead hearts were recorded at 7, 11, 14 and 18 and 14, 21 and 28 days after emergence (DAE), respectively. Seedling vigour scores were recorded at 12 DAE. The data on grain and fodder yield was also recorded.
The least seedling vigour score among seed treated pesticide was showed by treatment schedule seed treatment with imidacloprid 48 FS @ 12 ml/kg seed followed by quinalphos 25 EC @ 2 ml/lit water spray at 15 DAE followed by seed treatment with imidacloprid 48 FS @ 12 ml/kg seed and with thiamethoxam 48 FS @ 12 ml/kg seed. Neem seed extract-based sprays had moderate vigour and untreated control showed highest seedling vigour score i.e. 3.67. The egg count after 7, 11, 14 and 18 DAE sprays in various treatment schedules was statistically significant; seed treatment-based schedules were found significant effect on egg number.
The dead hearts caused by shoot fly by 14 DAE within the treatments were significant with least number of dead hearts (10.74%) in treatment schedule imidacloprid 48 FS 12 @ ml/kg seed, dead hearts in this treatment does not differ statistically than dead hearts in treatment schedule viz., seed treatment with imidacloprid 48 FS @ 12 ml/kg seed followed by quinalphos 25 EC @ 2 ml/lit water spray 15 DAE and treatment schedule seed treatment with thiamethoxam 48 FS @ 12 ml/kg seed (T6) i.e. 10.82 % and 11.92 % . The dead hearts per cent 21 and 28 DAE within the treatment schedule differ statistically with least i.e. 13.15 % and 15.22 % in treatment scheduled imidacloprid 48 FS @ 12 ml/kg seed followed by quinalphos 25 EC @ 2 ml/lit water spray 15 DAE being superior over all treatments. The next best treatment schedules were seed treatment with imidacloprid 48 FS @ 12 ml/kg seed (13.74 and 16.15%, respectively) and seed treatment with thiamethoxam 48 FS @ 12 ml/kg seed (16.29 and 16.29 %, respectively).
The grain yield in various treatment schedules were significant statistically with highest (32.33 q/ha) in treatment schedule seed treatment with imidacloprid 48 FS @ 12 ml/kg seed followed by quinalphos 25 EC @ 2 ml/lit water spray 15 DAE and it was on par in T6, seed treatment with thiamethoxam 30 FS @ 12 ml/kg seed and seed treatment with imidacloprid 48 FS @ 12 ml/kg seed which were more than yield in rest of the treatment schedules. The treatment schedule seed treatment with imidacloprid 48 FS @ 12 ml/kg seed followed by quinalphos 25 EC @ 2 ml/lit water spray 15 DAE had significantly highest fodder yield (118.97 q/ha) followed in schedules viz., seed treatment with imidacloprid 48 FS @ 12 ml/kg seed (117.59 q/ha) and seed treatment with thiamethoxam 30 FS @ 12 ml/kg seed (117.59 q/ha) and these figures were statistically more than in control as well as than the yield in rest of all treatment schedules.
The minimum cost Rs. 560.00/ha was incurred for treatment application in treatment schedule imidacloprid 48 FS @ 12 ml/kg seed followed with Rs. 600.00 and Rs. 1234.00/ha for treatment application in schedule seed treatment with thiamethoxam 30 FS @ 12 ml/kg seed and treatment schedule seed treatment with imidacloprid 48 FS @ 12 ml/kg seed followed by quinalphos 25 EC spray @ 2 ml/lit water spray 15 DAE respectively.
Maximum net profit of Rs. 55018.00/ha was obtained from seed treatment schedules viz., imidacloprid 48 FS @ 12 ml/kg seed followed by quinalphos 25 EC @ 2 ml/lit water spray 15 DAE (T4), thiamethoxam 30 FS @ 12 ml/kg seed (Rs. 54142.0/ha) and imidacloprid 48 FS @ 12 ml/kg seed (Rs. 54082.00/ha).
The analysis of total cost of treatment application and increased income in various treatment schedules showed that the highest incremental cost and benefit ratio (ICBR) was for treatment schedule, seed treatment with thiamethoxam 30 FS @ 12 ml/kg seed with 1:96.68. The treatment schedule seed treatment with imidacloprid 48 FS @ 12 ml/kg seed had better ICBR with 1:96.58 followed with 1:44.26 obtained in treatment schedule seed treatment with imidacloprid 48 FS @ 12 ml/kg seed followed by quinalphos 25 EC @ 2 ml/lit water spray 15 DAE. However, remaining schedules viz., treatment schedule NSE 5 % spray 7 DAE, treatment schedule treatment with NSE 5 % spray 7 DAE and 11 DAE, treatment schedule NSE 5 % spray 7 DAE, 11 and 14 DAE and treatment schedule NSE 5 % spray 7 and 18 DAE gave ICBR 1:3.80, 1:3.33, 1:2.15 and 1:1.16, respectively.
Description
Description: The experiment entitled ‘Management of shoot fly (Atherigona soccata) on Kharif sorghum’ was carried out on the field of Sorghum Research Unit, Dr. PanjabraoDeshmukhKrishiVidyapeeth, Akola, during Kharif 2020 to ascertain the effect of pesticide seed treatment on shoot fly incidence and to work out the effective and economic treatment for management of shoot fly. Observations on number of shoot fly eggs and dead hearts were recorded at 7, 11, 14, 18 and 14, 21 and 28 days after emergence (DAE). Seedling vigour score was recorded at 12 DAE. The data thus obtained were subjected to statistical analysis experimental findings are discussed here with under different headings and subheadings in light of available literature.
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Citation
Citation: RATHOD SIDDHESHWAR BABARAO.(2021).Management of Shoot fly (Atherigona soccata). Department of Entomology, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola. M.Sc. 2021. Print. xiii,65p. (Unpublished).