ASSESSMENT OF EFFECTIVE DOSE OF SOME REGISTERED PESTICIDES AGAINST POD BORER COMPLEX OF PIGEONPEA.
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Date
2017-07-11
Authors
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Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola
Abstract
The present investigation entitled“Assessment of effective dose of some registered pesticides against pod borer complex of pigeonpea." was carried out during 2016-2017 on the field of Agri. Entomology, Post Graduate Institute, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola. Nine different treatments along with an untreated control were evaluated against pod borer complex of pigeonpea with an objectives to evaluate the effective dose of some widely used registered pesticide against pod borer complex of pigeonpea, see the effect of different treatments on natural enemies of pod borers, see the effect of different treatments on yield and ICBR of pigeonpea.
The results shows that the treatment i.e. Chlorantraniliprole 18.5 SC @ 150 ml/500 lit. of water found most effective, recording, minimum population of H. armigera and E. atomosafollowed by Chlorantraniliprole 18.5 SC @ 150 ml/600 lit. of water,Emamectin Benzoate 5SG@ 220 g/500 lit. of water, Chlorantraniliprole 18.5 SC @ 150 ml/750 lit. of, water and Indoxacarb14.5 SC @ 353 ml/500 lit. of water,and all these treatments being statistically at par and significantly superior over an untreated control, which recorded highest larval population.
The maximum Lady Bird Beetle and Spider population was observed in untreated control. However, amongst the treatment, Indoxacarb14.5 SC @ 400 ml/1000 lit. of water followed by Emamectin Benzoate 5 SG @ 220 g/750 lit. of water and Indoxacarb14.5 SC @ 375 ml/750 lit. of found at par with each other.
The significantly lowest pod damage by Lepidopteran, Dipteran pests and pod borer complex was recorded in treatment Chlorantraniliprole 18.5 SC @ 150 ml/500 lit. of water and found most effective followed by, the treatment with Indoxacarb14.5 SC@ 353 ml/500 lit. of water , Chlorantraniliprole 18.5 SC @ 150 ml/600 lit. of water, Emamectin Benzoate 5 SG @ 220 g/500 lit. of water, Emamectin Benzoate 5 SG @ 220 g/600 lit. of water, Indoxacarb14.5 SC @ 375 ml/750 lit. of water and were at par with each other. While, untreated control recorded highest pod damage.
The significantly lowest Grain damage (6.02 per cent ) was recorded in treatment with, Chlorantraniliprole 18.5 SC @ 150 ml/500 lit. of water and found most effective followed by, the treatment with Indoxacarb14.5 SC @ 353 ml/500 lit. of water, Emamectin Benzoate 5 SG @ 220 g/500 lit. of water, Chlorantraniliprole 18.5 SC @ 150 ml/600 lit. of water, Emamectin Benzoate 5 SG @ 220 g/600 lit. of water, Indoxacarb14.5 SC @ 375 ml/750 lit. of water, Chlorantraniliprole 18.5 SC @ 150 ml/750 lit. of water and Emamectin Benzoate 5 SG @ 220 g/750 lit. of water recording the Grain damage of, 6.15,6.28,6.65,6.77,6.82,7.29 and 7.39 per cent, respectively,
The highest grain yield of 25.71 q/ha recorded in treatment with Chlorantraniliprole 18.5 SC @ 150 ml/500 lit. of water found most effective and significantly superior over all other treatments, followed by Emamectin Benzoate 5 SG @ 220 g/500 lit. of water (24.69 q/ha), Emamectin Benzoate 5 SG @ 220 g/750 lit. of water (24.43 q/ha) and Emamectin Benzoate 5SG@ 220 g/600 lit. of water (23.66 q/ha) .
ICBR of different treatment indicated that Emamectin Benzoate 5 SG @ 220 g/500 lit. of water was emerged as the most economically viable treatment recording highest ICBR of 1:6.12 with net monetary return of Rs.27958/ha. It was followed by Chlorantraniliprole 18.5 SC @ 150 ml/500 lit. of water, Emamectin Benzoate 5 SG @ 220 g/750 lit. of water, Emamectin Benzoate 5 SG @ 220 g/600 lit. of water and Indoxacarb14.5 SC @ 353 ml/500 lit. of water which recorded the ICBR of 1:5.83, 1:5.83, 1:4.98 and 1:4.96 respectively.
Description
The present study entitledassessment of effective dose of some
registered pesticides against pod borer complex of pigeonpea. From
these investigation the treatment chlorantraniliprol 18.5 SC @ 150
ml/500 lit. of water and 150 ml/600 lit. of water were most effective
against reducing the population of H. armigera and E. atomosa, pod
damage caused by lepidopteran pests, dipteran pests, pod borer
complex, Grain damage along with increasing the yield and ICBR.
Also Indoxacarb 14.5 SC @ 400 ml/1000 lit. of water and Emamectin
benzoate 5 SG @ 220 gm/750 lit. of water was found comparatively
safer against Lady Bird Beetle and Spider.
Keywords
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Citation
JADHAV, MANGESH MARUTI. (2017).Assessment of effective dose of some registered pesticides against pod borer complex of pigeonpea. Department of Agricultural Entomology, Dr. Panjabrao Deshmukh Krishi Vidhyapeeth, Akola. M. Sc. 2017,xiii, 110p. (Unpublished).