scholarly journals Bio-rational Management of Pod Borer (Helicoverpa armigera L.) in Chickpea Crop

2021 ◽  
Author(s):  
B.L. Jat ◽  
Nidhi . ◽  
Gopichand Singh ◽  
Pushpa Kumawat
Keyword(s):  
Helicoverpa Armigera ◽  
Pheromone Trap ◽  
Cost Ratio ◽  
Yield Increase ◽  
Benefit Cost Ratio ◽  
Pod Borer ◽  
Helicoverpa Armígera ◽  
Rational Management ◽  
Benefit Cost ◽  
The Impact

On Farm Testing of Pheromone trap @ 5/ha + Coriander row (7/8:1) + HaNPV @ 250 LE/ha against pod borer (Helicoverpa armigera L.) management was assessed on farmers field in Nagaur district during 2020-21. Trial was conducted on 10 farmer’s field to know the impact of said technology on chickpea pod borer management. In the demonstrated technologies the chickpea seed production 19.83 q/ha. The percent seed yield increase over the farmer’s practices was 34.11%. The net return in demonstration technology was ` 67036/ha and the same was ` 44525/ha. The incremental benefit cost ratio was 3.26 in demonstration technology as compared to farmer’s/ local check 2.60 respectively.

scholarly journals Efficacy of insecticides in controlling pod borer (Helicoverpa armigera Hubner) infesting chickpea

2017 ◽  
Vol 42 (2) ◽  
pp. 373-378
Author(s):  
Md Shahiduzzaman
Keyword(s):  
Helicoverpa Armigera ◽  
Yield Loss ◽  
Cost Ratio ◽  
Research Station ◽  
Insect Infestation ◽  
Benefit Cost Ratio ◽  
Pod Borer ◽  
Helicoverpa Armígera ◽  
Benefit Cost ◽  
Helicoverpa Armigera Hubner

A field experiment was carried out at the Regional Pulses Research Station of Bangladesh Agricultural Research Institute, Madaripur, Bangladesh during rabi season of 2013-14 and 2014-15 to select effective insecticides to control pod borer (Helicoverpa armigera Hubner) of chickpea (Cicer arietinum). Signinificantly the highest insect infestation and yield loss were recorded from untreated control. Spray with every insecticide for 3 times at 7 days interval reduced insect infestation and yield loss significantly over control in both years. Reduction in insect infestation was 11.77-18.77% and 6.34-13.34% and yield loss was 280-393-168-281 kgha-1 in 2013-14 and 2014-15, respectively. The highest grain yield was obtained with Tracer 45 SC (Spinosad) (1177 kgha-1) followed by Volium Flexi 300 SC (Thiamethaxam) (1045 kgha-1) and Belt 24 WG (Flubendiamide) (1020 kgha-1) in first year. In second year, Tracer 45 SC produced maximum yield (1396 kgha-1) followed by Volium Flexi 300 SC (1315 kgha-1) and Admire 200 SL (Imidacloprid) (1300 kgha-1). In 2013-14, the highest benefit cost ratio (3.39) was obtained with Volium Flexi 300 SC followed by Belt 24 WG (2.65) and Admire 200 SL (1.67). In 2014-15, the highest benefit cost ratio was also obtained with Voilum Flexi 300 SC (2.38) followed by Admire 200 SL (1.79) and Belt 24 WG (1.63). Comparing two years data considering highest profit, Volium Flexi 300 SC might be applied @ 0.05% at an interval of 7 days to the crop for three times.Bangladesh J. Agril. Res. 42(2): 373-378, June 2017

scholarly journals Efficacy of insecticides for suppressing pod borer of mungbean

2018 ◽  
Vol 42 (4) ◽  
pp. 725-730
Author(s):  
M Shahiduzzaman ◽  
BL Nag ◽  
HMK Bashar ◽  
GN Hasan
Keyword(s):  
Field Experiment ◽  
Seed Yield ◽  
Cost Ratio ◽  
Research Station ◽  
Benefit Cost Ratio ◽  
Pod Borer ◽  
Helicoverpa Armígera ◽  
Benefit Cost ◽  
Treated Plot ◽  
Helicoverpa Armigera Hubner

A field experiment was carried out at Regional Pulses Research Station (RPRS), Madaripur during Kharif-I season of 2014 and 2015 to find out the effective insecticides for suppressing pod borer (Helicoverpa armigera Hubner) (Lepidopetera: Noctuidae) infesting Mungbean. In Kharif-I, 2014, suppression of pod borer infestation was the highest (80.82%) in Tracer (Spinosad) treated plot and produced the highest (1738 kg-1ha) seed yield and the highest benefit cost ratio (6.28) obtained in Volium Flexi 300SC (Thiamethaxam+ Chlorantraniliprole) treated plot. In Kharif-I, 2015, suppression of pod borer infestation was the highest (64.15%) in Volium Flexi 300SC treated plot and produced the highest (1610 kg-1ha) seed yield and also gave the highest benefit cost ratio (4.27). Considering the two years data the treatment Volium Flexi 300SC was found to be the best to suppress pod borer attacking mungbean.Bangladesh J. Agril. Res. 42(4): 725-730, December 2017

Bio-efficacy of Insecticides against Helicoverpa armigera in Chickpea

2019 ◽  
Author(s):  
Vikrant . ◽  
Dharm Raj Singh ◽  
Sanjeev Kumar ◽  
Kaushal Kishor ◽  
Ram Kewal
Keyword(s):  
Seed Yield ◽  
Helicoverpa Armigera ◽  
Cost Ratio ◽  
Larval Population ◽  
Benefit Cost Ratio ◽  
Maximum Reduction ◽  
Maximum Benefit ◽  
Helicoverpa Armígera ◽  
Benefit Cost ◽  
Reduction Percentage

The study was carried out to evaluate bio-efficacy of some insecticides against Helicoverpa armigera (Hubner) in chickpea during rabi 2014-15 and 2015-16 at the Students’ Instructional Farm (SIF) of Chandra Shekhar Azad University of Agriculture and Technology, Kanpur. Minimum surviving and maximum reduction percentage of larval population was recorded in T5 (Spinosad 45 EC @ 166 ml/ ha), whereas maximum surviving and minimum reduction percentage of larval population was recorded in T1 (HaNPV @ 250 LE/ha) at 3rd, 7th and 10th days after spray. Significantly higher seed yield was obtained in case of (T5) Spinosad 45 SC (2550 kg ha-1 in 1st and 2680 kg ha-1 in 2nd year), respectively. Based on benefit: cost ratio of different treatments, (T5) Spinosad 45 SC ha-1 was found to be most economic insecticide, because it gave the maximum benefit as compared to remaining treatments.

scholarly journals Development of conceptual model of project value dynamics analysis in conditions of uncertainty

2021 ◽  
Vol 4 (13(112)) ◽  
pp. 101-112
Author(s):  
Olexander Bugrov ◽  
Olena Bugrova
Keyword(s):  
Conceptual Model ◽  
Cash Flow ◽  
Construction Projects ◽  
Dimensional Space ◽  
Value Engineering ◽  
Cost Ratio ◽  
Benefit Cost Ratio ◽  
Annual Total ◽  
Benefit Cost ◽  
The Impact

A conceptual model for analyzing the dynamics of the value of the project, achieved as a result of engineering, under conditions of uncertainty has been developed. In the methodological context, the proposed approach is based on an array of isovalues, each of which corresponds to its own level of optimism in forecasting the cash flow for the project. With the increase in the efficiency of the project due to engineering, the entire array of iso-value lines’ changes its geometrical position, moving further from the origin (in the four-dimensional space "time-benefit-cost-risk"). The proposed model includes three stages. At the first stage, input information is collected and the corresponding analysis is initiated. The result of the second stage is a multivariate cash flow forecast and calculation of the benefit-cost ratio (BCR) and its changes for each scenario. The third stage provides the calculation of the expected BCR and its change, an assessment of the risk of making an erroneous decision and changing this risk as a result of the engineering session. The model makes it possible to calculate the achieved proportion of the static and dynamic vectors of change in the value of the project, which is one of the key manifestations of the scientific novelty of the work. In the example considered, the share of the dynamic vector of growth in the value of the project was found to be 35.47 %. The model has an environmental property - the assessment of the success of value engineering under conditions of uncertainty is carried out on the basis of the annual total benefits and the annual total costs throughout the project cycle. Thus, the analysis takes into account the impact of the project on the environment, which is reflected in the risk assessment. The given case testifies to the feasibility of applying the model in the practice of engineering the value of construction projects.

scholarly journals Efficacy of some insecticides against insect pests of mungbean (Vigna radiata L.)

2016 ◽  
Vol 40 (4) ◽  
pp. 657-667 ◽  
Author(s):  
Md Altaf Hossain
Keyword(s):  
Management Practices ◽  
Insect Pests ◽  
Flea Beetle ◽  
Management Approach ◽  
Cost Ratio ◽  
Benefit Cost Ratio ◽  
Pod Borer ◽  
Insect Infestations ◽  
Benefit Cost ◽  
Thrips Population

Efficacy and profitability of insecticidal management practices using different insecticides were tested against insect pests of mungbean at Pulses Research Center, Ishurdi, Pabna, Bangladesh during two consecutive seasons of kharif-1 2013 and 2014. Insect infestations were reduced significantly by the application of synthetic insecticides. Spraying of Imidachloprid (Imitaf 20 SL) @ 0.5 ml/l of water showed the best efficacy in reducing flower infestation and thrips population followed by Fipronil (Regent 50 SC). Spraying of Thiamethoxam + Chlorantraneliprol (Voliam flexi 300 SC) @ 0.5 ml/l of water showed the best efficacy in reducing pod borer and flea beetle infestations. Spraying of Fipronil (Regent 50 SC) performed highest efficacy against stemfly infestation. The yield and the highest net return were obtained from Voliam flexi 300 SC, the highest benefit was obtained from Regent 50 SC treated plots. This might be due to the higher cost of Voliam flexi that reduced the profit margin and showed the lower marginal benefit cost ratio (MBCR) compared to Regent. Therefore, considering the efficacy and benefit, spraying of Fipronil (Regent 50 SC) @ 0.5 ml/l is the most profitable insecticidal management approach against insect pests of mungbean followed by Imidachloprid (Imitaf 20 SL) at the same dose.Bangladesh J. Agril. Res. 40(4): 657-667, December 2015

scholarly journals Development of integrated pest management approaches against Helicoverpa armigera (Hubner) in tomato

2016 ◽  
Vol 41 (2) ◽  
pp. 287-296 ◽  
Author(s):  
AKM Z Rahman ◽  
MA Haque ◽  
SN Alam ◽  
K Begum ◽  
D Sarker
Keyword(s):  
Pest Management ◽  
Pheromone Trap ◽  
Cost Ratio ◽  
Seed Kernel ◽  
Neem Seed ◽  
Marginal Benefit ◽  
Benefit Cost Ratio ◽  
Bracon Hebetor ◽  
Management Approaches ◽  
Benefit Cost

Five IPM packages viz. T1=Pheromone trap @ 70 traps ha-1 + Neem seed kernel extract @ 50 g L-1 of water; T2=Pheromone trap + HaNPV @ 0.4 ml L-1 of water and Bt @ 2.0 g L-1 of water; T3=Pheromone trap + Neem seed kernel extract + HaNPV and Bt; T4=Pheromone trap + Trichogramma chillnis @ 50,000 ha-1 and Bracon hebetor @ 1200 ha-1; T5=Pheromone trap + Neem seed kernel extract + T. chilonis and B. hebetor were evaluated against H. armigera in tomato. The lowest fruit infestation by number (12.55%) was attained from T5 followed by T2 (15.49%). Significantly the lowest fruit infestation by weight was found in treatment T2 (10.60%) followed by T5 (11.73%). The highest yield was obtained from T5 (29.74 t ha-1) followed by T2 (26.77 t ha-1). The highest marginal benefit cost ratio was achieved from T2 (3.41) followed by T5 (3.35). Hence, considering benefit cost ratio, T2 and T5 packages may be the effective tools for managing H. armigera in tomato.Bangladesh J. Agril. Res. 41(2): 287-296, June 2016

Preliminary Cost-Benefit Analysis (CBA) for Safety Assist Technologies in ASEAN NCAP – Rationalizing the Impact to Road Safety for Malaysia’s Case

2014 ◽  
Vol 663 ◽  
pp. 596-603
Author(s):  
Zulhaidi Mohd Jawi ◽  
Aqbal Hafeez Ariffin ◽  
Yahaya Ahmad ◽  
Khairil Anwar Abu Kassim ◽  
Norlen Mohamed ◽  
...  
Keyword(s):  
Road Safety ◽  
Cost Benefit Analysis ◽  
Cost Benefit ◽  
Cost Effective ◽  
Cost Ratio ◽  
Benefit Analysis ◽  
Benefit Cost Ratio ◽  
Benefit Cost ◽  
The Impact ◽  
Rating Scheme

The newly established New Car Assessment Program for Southeast Asian Countries (ASEAN NCAP) has incorporated Safety Assist Technologies (SATs) in its automobile safety rating scheme. In order for any assessed car to be eligible for the maximum 5-star rating, it should first be equipped with Electronic Stability Control (ESC) and fitted with seatbelt reminder (SBR). However, since these SATs are not being evaluated in their performance by the means of field testing, this paper explains the benefit of having these SATs through Cost-Benefit Analysis (CBA) which help to rationalize the importance of SATs in preventing road accidents or mitigating severity of injuries. Due to data limitation, this preliminary CBA assessment will only be focusing on Malaysia’s situation and is based on published sources and the authors’ best estimates. This study also includes the Cost-Benefit Analysis on Anti-lock Braking System (ABS), which is the basis for ESC technology, in preparation for its inclusion in the future rating scheme to expedite the vision of making ABS as standard fit in all ASEAN’s passenger cars. The preliminary result shows that all technologies – ESC, SBR and ABS – appear to be cost-effective (benefit/cost-ratio > 3) or most likely cost effective (1 < benefit/cost-ratio < 3) in Malaysia’s road safety situation per se.

scholarly journals Management Of Thrips And Pod Borers Using Chemicals, Botanicals And Biopesticides In Mungbean

2020 ◽  
Vol 17 (2) ◽  
pp. 79-91
Author(s):  
KN Islam ◽  
MMH Khan ◽  
MA Latif ◽  
MM Uddin ◽  
MM Islam
Keyword(s):  
Control Measure ◽  
Block Design ◽  
Maximum Yield ◽  
Effective Control ◽  
Cost Ratio ◽  
Marginal Benefit ◽  
Benefit Cost Ratio ◽  
Pod Borer ◽  
Legume Pod Borer ◽  
Benefit Cost

The experiment was conducted to find out effective control measure against thrips and pod borers of mungbean by various means, including chemicals, botanicals and biopesticide. The mungbean variety, BARI Mung-6 was grown in the field and six treatments viz., T1 [Azadirachtin (Bioneem plus 1EC)], T2 [Bacillus thuringiensis (Bt. powder)], T3 [Spinosad (Tracer 45SC)], T4 [Chlorpyrifos + Cypermethrin (Nitro 505EC)], T5 [Thiamethoxam + Chlorantraniliprole (Voliam flexi 300SC)] and T0 [Untreated control (water spray)] were set in randomized complete block design (RCBD) with three replications. The insecticidal treatment options showed significantly different performance against thrips (Megalurothrips distalis), gram pod borer (Helicoverpa armigera) and legume pod borer (Maruca vitrata) on mungbean. The lowest population of thrips, gram pod borer and legume pod borer was found in Voliam flexi 300SC treated plot which showed maximum percent reduction of these pests. The lowest percent pod infestation by pod borers observed by the same treatment. Bioneem plus showed the intermediate results considering all the parameters. The maximum yield (1254.50 kg ha-1) and the highest marginal benefit cost ratio (MBCR) (6.68) were obtained from Voliam flexi 300SC. Considering effectiveness and marginal benefit cost ratio, Voliam flexi 300SC was more effective among treatments for controlling thrips and pod borers of mungbean followed by Nitro 505EC. SAARC J. Agri., 17(2): 79-91 (2019)

scholarly journals THE ECONOMIC IMPACT OF THE SOUTH AFRICAN AGRICULTURAL RESEARCH COUNCIL'S DRY BEANS BREEDING PROGRAM

2017 ◽  
Vol 49 (2) ◽  
pp. 232-250 ◽  
Author(s):  
THULA DLAMINI ◽  
LANIER NALLEY ◽  
FRANCIS TSIBOE ◽  
ANDREW BARKLEY ◽  
AARON SHEW
Keyword(s):  
South Africa ◽  
Food Security ◽  
Agricultural Research ◽  
Breeding Program ◽  
Cost Ratio ◽  
Dry Bean ◽  
Yield Increase ◽  
Benefit Cost Ratio ◽  
Benefit Cost ◽  
Returns On Investment

AbstractThis study estimates the dry bean yield increase in South Africa that is attributable to genetic improvements through the Agricultural Research Council's (ARC) bean breeding program. Using 32 test plots across South Africa from 1982 to 2014, results indicate that ARC breeding increased average yields by 11.65 kg/ha annually, for a cumulative 43.28% increase. These yield increases were not at the expense of yield variance, an important measure of food security. These findings indicate that the returns on investment are relatively high (an estimated 5.67:1 benefit-cost ratio) and can lead to greater food security though increased and stabilized bean yields.

Bioefficacy of new ready mixed insecticide (novaluron 5.25% + indoxacarb 4.5%SC) against pigeon pea pod borer (Helicoverpa armigera Hubner)

2016 ◽  
Vol 39 (1) ◽  
Author(s):  
A. Ghosal ◽  
A. K. Dolai ◽  
M. L. Chatterjee
Keyword(s):  
Helicoverpa Armigera ◽  
Maximum Yield ◽  
Cost Benefit ◽  
Pigeon Pea ◽  
Remarkable Effect ◽  
Yield Increase ◽  
Pod Borer ◽  
Cost Benefit Ratio ◽  
Helicoverpa Armígera ◽  
Pea Pod

The effect of different treatment schedules of Novaluron 5.25% + Indoxacarb 4.5% SC against pod borer of pigeon pea gave superlative effect over the sole insecticide Novaluron & Indoxacarb & standard check Lamda-cyhalothrin; though, all the treated plots with chemicals were significantly superior in their performance over that of control plots. Among the three selected dose of Novaluron 5.25% + Indoxacarb 4.5% SC (750, 825, 875 ml ha<sup>–1</sup>); the said chemical @ 875 ml ha<sup>–1</sup> was recorded as best in managing <italic>Helicoverpa armigera</italic> population up to harvesting period (mean 0.03% infested pod of both years), while, @ 825 ml ha<sup>–1</sup> also recorded remarkable effect on the target pest. The maximum yield (23.40 q ha<sup>–1</sup>) was obtained from the plots treated with Novaluron 5.25% + Indoxacarb 4.5% SC @ 875 ml ha<sup>–1</sup> closely followed by @ 825 ml ha<sup>–1</sup> (22.98 q ha<sup>–1</sup>). The yield increase was also of high order. Highest cost-benefit ratio (2.07) was recorded in Novaluron 5.25% + Indoxacarb 4.5% SC @ 825 ml ha<sup>–1</sup> closely followed by @ 875 ml ha<sup>–1</sup>.

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