Bioefficacy of novel insecticides against pod borer,(Helicoverpa armigera Hubner) in pigeonpea

2017 ◽  
Author(s):  
Hemant Swami ◽  
O.P. Ameta ◽  
Lekha .
Keyword(s):  
Seed Yield ◽  
Helicoverpa Armigera ◽  
Untreated Control ◽  
Larval Population ◽  
Pod Borer ◽  
Helicoverpa Armígera ◽  
Treated Plot ◽  
Helicoverpa Armigera Hubner

The bio efficacy of some new insecticides and their combinations against pod borer infesting pigeonpea was evaluated at Agronomy farm, RCA, Udaipur using four dosages of Chlorantraniliprole 9.6% + Lambdacyhalothrin 4.6% @ 150, 200, 250 and 300 ml/ha along with Lambdacyhalothrin 4.9 % CS @ 500 ml / ha, Chlorantraniliprole 18.5% SC @ 162 ml / ha, Profenophos 50 EC @ 1500 ml / ha and Indoxacarb 14.5 SC @ 517 ml / ha. Among the various insecticides, lowest population of larvae with a mean of 3.65, 4.16, 2.25 and 2.16 larvae/10 plants was recorded in Chlorantraniliprole 9.6% + Lambdacyhalothrin 4.6% at 300 ml/ha as against 35.10, 37.0, 39.55 and 38.47 larvae/10 plants in untreated control during 2011 at 7 and 14 days after first and second spray, respectively which was found at par with Chlorantraniliprole 9.6% + Lambdacyhalothrin 4.6% at 200, and 250 ml/ha. Similar results were also recorded during 2012 with larval population in the range of 2.10 –7.16/ 10 plants in Chlorantraniliprole 9.6% + Lambdacyhalothrin 4.6% treated plot @ 200,250 and 300 ml/ha. Chlorantraniliprole 9.6% + Lambdacyhalothrin 4.6% at 300ml/ha caused highest reduction in pod borer larvae during both the years with a mean reduction of 91.86 and 89.14 per cent during kharif 2011 and 2012, respectively. The seed yield among different treatments ranged from 6.75 to 9.50 and 7.87 to 10.78q/ha against 5.35and 6.45q/ha in untreated control during kharif 2011 and 2012, respectively. The highest seed yield of 9.50 and 10.78 q/ha/ha was recorded in case of spray of Chlorantraniliprole 9.6% + Lambdacyhalothrin 4.6% at 300 ml/ha during kharif 2011 and 2012, respectively.

scholarly journals Prediction of Helicoverpa armigera (Hubner) larval population using weather based forewarning model in soybean

2021 ◽  
Vol 21 (4) ◽  
pp. 494-498
Author(s):  
RAM MANOHAR PATEL ◽  
A.N. Sharma ◽  
PURUSHOTTAM SHARMA
Keyword(s):  
Helicoverpa Armigera ◽  
Training Dataset ◽  
Maximum Temperature ◽  
Validation Dataset ◽  
Larval Population ◽  
Pod Borer ◽  
Significant Difference ◽  
Helicoverpa Armígera ◽  
Predicted Values ◽  
Helicoverpa Armigera Hubner

Weekly larval populations of pod borer, Helicoverpa armigera (Hubner) collected from 20 districts of Maharashtra under Crop Pest Surveillance and Advisory Project (CROPSAP) during 2010-2015 were analyzed to work out the effect of weather variables on the incidence of this insect on soybean. The appearance of larva was observed throughout the soybean growing season, and the peak incidence was observed during third week of August to first week of September (34-35 SMW). The correlation analysis of the data revealed that larval population was significantly and positively influenced by the minimum temperature and rainfall of current week as well as previous two weeks. For the development of forewarning model, data for the period from 2010 to 2013 were used as training dataset and two year (2014-2015) data as validation dataset. The mean model used for forewarning the incidence of pod borer larval population was developed by using step-wise multiple regression analysis in polynomial form. The results of mean model revealed that the significant variables affecting the pod borer larval population in soybean were maximum temperature (current and 1st lag week), and rainfall (current week) and the model explained 48.93% variation. The pre-disposing conditions for the incidence of larvae have been worked out as maximum temperature ranging from 26.1 to 31.47 ºC and rainfall ranging from 6.63 to 141.46 mm with low or medium rainfall in previous weeks followed by high in current week. The model was validated with 2014-15 independent dataset with predicted R2 (R2 ) value 28.13%. Two sample t-test showed no Pred significant difference between observed and predicted values (p = 0.3691 > 0.05).

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

Monitoring of Gram Pod Borer, Helicoverpa armigera (Hübner) through Pheromone Traps in Different Modules of Short Duration Pigeonpea

2020 ◽  
Author(s):  
Amit Yadav ◽  
Ram . Keval ◽  
Abhishek . Yadav
Keyword(s):  
Helicoverpa Armigera ◽  
Agricultural Research ◽  
Pheromone Trap ◽  
Control Measures ◽  
Pheromone Traps ◽  
Larval Population ◽  
Pod Borer ◽  
Helicoverpa Armígera ◽  
Trap Catches ◽  
Helicoverpa Armigera Hubner

Present investigations were carried out during Kharif season of 2013-14 and 2014-15 at the Agricultural Research Farm, Banaras Hindu University, Varanasi to monitor the population of Helicoverpa armigera (Hubner) by using pheromone traps and to start appropriate control measures in time. The maximum numbers of moth catches were recorded during 44th (16.8 pheromone trap-1) and 45th (19.5 pheromone trap-1) standard week in all the modules during Kharif 2013 and 2014. Relationship between pheromone trap catches and egg population was found significant and positively correlated in all modules except M3 during 2013. In the succeeding year 2014, the correlation between pheromone trap catches and egg population was positive and significant only in case of M5. The correlation between pheromone trap catches and larval population was positive in all modules but significant in case of M1 during 2013. In the succeeding year 2014, the correlation between pheromone trap catches and larval population was positive in all modules but significant only in M5.

Novel Insecticides for the Management of Pod Borer Complex in Pigeonpea Crop

2020 ◽  
Author(s):  
G. K. Taggar ◽  
Ravinder K. Singh ◽  
H. S. Randhawa ◽  
H. K. Cheema
Keyword(s):  
Grain Yield ◽  
Helicoverpa Armigera ◽  
Untreated Control ◽  
Maruca Vitrata ◽  
Pest Population ◽  
Net Returns ◽  
Pod Borer ◽  
Helicoverpa Armígera ◽  
Helicoverpa Armigera Hubner

The bioefficacy of novel insecticides against pod borer complex comprising Maruca vitrata (Fabricius) and Helicoverpa armigera (Hubner) in pigeonpea was evaluated in multi location research trials during kharif 2016 to 2018. The data on efficacy of different insecticides against pod borer complex averaged at all the locations revealed that the application of chlorantraniliprole 18.5 SC @ 150 ml ha-1 followed by flubendiamide 480 SC @ 125 ml ha-1 registered significantly the lowest pest population and cumulative pod damage. These treatments registered significantly highest grain yield along with highest net returns over untreated control, thus, indicating their superiority over rest of the treatments.

Comparative Efficacy of Various Insecticides to Control Gram Pod Borer (Helicoverpa armigera Hubner) on Chickpea

2003 ◽  
Vol 2 (4) ◽  
pp. 403-405 ◽  
Author(s):  
Abdul Rashid ◽  
Habib Ahmad Saeed . ◽  
Lal Hussain Akhtar . ◽  
Sabir Zameer Siddiqi . ◽  
Muhammad Arshad .
Keyword(s):  
Helicoverpa Armigera ◽  
Comparative Efficacy ◽  
Pod Borer ◽  
Helicoverpa Armígera ◽  
Helicoverpa Armigera Hubner

Evaluation of biopesticides against gram pod borer Helicoverpa armigera (HUB.) on pigeonpea

2016 ◽  
Author(s):  
Sagar Anand Pandey ◽  
S. B. Das
Keyword(s):  
Field Experiment ◽  
Grain Yield ◽  
Helicoverpa Armigera ◽  
Block Design ◽  
Pigeon Pea ◽  
Larval Population ◽  
Randomized Block Design ◽  
Pod Borer ◽  
Helicoverpa Armígera ◽  
Major Pest

A field experiment on evaluation of biopesticides against gram pod borer (Helicoverpa armigera Hub.) on pigeon pea was carried out during kharif season of 2012-13. The experiment was laid out in randomized block design with three replications. Gram pod borer is a major pest of pigeon pea in India. For the management of this pest seven biopesticides were tested along with control. Among the biopesticides, Beauveria bassiana @ 1 liter / ha (1x1012 spores/ml) was found to be most effective biopesticide as it recorded lowest larval population (6.68 larvae / 5plants). The highest larval population was recorded in control (12.61 larvae /5 plants). The least effective treatment was Paecilomyces fumosoreseus (9.31 larvae /5 plants). Similar trend was observed in the grain yield as 1667.55 kg/ha, 709.41kg/ha and 1025.21kg/ha , respectively.

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