Evaluation of Suitable IPM Module for Management of YMV Disease in Mungbean under West Central Table Land Zone of Odisha

Author(s):  
Dipankar Mandal ◽  
Rini Pal ◽  
Atanu Seni ◽  
Ashok K. Mohanty

Background: YMV disease in mungbean is one of the major disease causing heavy losses annually throughout the country. As the disease is transmitted by insect vector, management of vector is important to check the YMV disease that can minimise the losses. The present investigation was aimed to evaluate different IPM modules for management of YMV disease of mungbean. Methods: Field experiments were carried out during Rabi season of 2016-17 and 2017-18 at the Research Farm of Regional Research and Technology Transfer Station, Chiplima, Sambalpur, Odisha, India. Population of whitefly was recorded on three leaves selected from top, middle and bottom canopy of the plant. Disease severity was recorded by using 0-9 scale. Result: The IPM module i.e. seed treatment with Thiamethoxam 25 WG @ 5 gm kg-1 of seed, installation of yellow sticky trap @ 50 ha-1 and spraying of Acetamiprid 20 SP @ 0.3 gm l-1 of water was found as the most effective among all other modules. Pooled analysis of two years data revealed that 65.5% YMV disease control and 59.3% reduction of white fly population over control were performed by the said IPM module. A maximum increase in yield (84.8%) and highest cost benefit ratio (1.77) were also achieved with the module.

2020 ◽  
Vol 13 (2) ◽  
pp. 187-191
Author(s):  
Dipankar Mandal ◽  
Rini Pal ◽  
Ashok Kumar Mohanty

A field experiment was conducted at Regional Research and Technology Transfer Station, OUAT, Chiplima, Sambalpur, Odisha, India for the management of purple blotch of onion. From the experiment it was found that all the treatments were effective to reduce the severity of the disease as compared to untreated control. Among the treatments, seed treated with Carboxin 37.5%+Thiram 37.5%@ 2g/kg and three foliar sprays of Trifloxystrobin + Tebuconazole @0.4g/l of water at 10 days interval starting from initiation of the disease was most effective in reducing the purple blotch disease of onion (69.5% disease control) and was closely followed by seed treated with Carboxin 37.5%+Thiram 37.5% @ 2 g/kg and three foliar sprays of Tebuconazole @ 1.0ml/l of water (62.3% disease control). A maximum increase of yield (83.4%) with highest cost benefit ratio (1.97) was also achieved with the same treatment.


Author(s):  
M. Sreekanth ◽  
M. Seshamahalakshmi ◽  
M. V. Ramana

Background: Pod fly, Melanagromyza obtusa is one of the most obnoxious pest causing grain damage ranging from 10-80% with a monitory loss of US$ 256 million annually. Being an internal feeder, infested pods do not show any external symptoms of damage until the fully grown maggots chew the pod wall, leaving a thin papery membrane intact called as window, through which adults exit from the pod. Several field studies were conducted to determine the efficacy of insecticides for the control of pod fly. However, these findings did not find acceptability and led to partial success. Insecticides that should leave lesser residues and pose lesser environmental threat have become imperative. The present study aimed to evaluate the efficacy of certain new insecticide molecules against pod fly in pigeonpea ecosystem. Methods: Two field experiments were conducted at Regional Agricultural Research Station, Lam, Guntur during Kharif, 2012 and 2013 in a randomized block design (RBD) using pigeonpea cv. ICPL 85063 (Lakshmi) with 17 treatments including untreated control and 3 replications. Two sprays were given at 10 days interval starting from pod initiation stage. At maturity, number of pods showing pod fly damage were recorded and expressed as percentage. Grain yield was recorded and cost–benefit ratio was worked out. Result: Among different insecticides, thiacloprid 21.7 SC, followed by diafenthiuron 50 WP, flubendiamide 480 SC and dimethoate 30 EC were very effective against pod fly with more grain yield and registered highest incremental cost benefit ratio (ICBR). It was further suggested that effective insecticides may be alternated in order to avoid development of resistance to pod fly in pigeonpea.


2020 ◽  
Vol 116 (1) ◽  
pp. 137
Author(s):  
Oludamilola ADEMABAYOJE ◽  
Joseph ADIGUN ◽  
Olusegun ADEYEMI ◽  
Olumide DARAMOLA ◽  
Godwin AJIBOYE

<p>Weed management is an important and expensive step in groundnut production. Field experiments were conducted in the early and late wet seasons of 2017 to evaluate the effectiveness and profitability of weed management using hoe weeding, herbicides or their combination in groundnut production. Butachlor and propaben at 2.0 kg a.i (active ingredient) ha<sup>-1 </sup>each followed by (fb) supplementary hoe-weeding (shw) at 6 weeks after sowing (WAS) significantly reduced weed cover and biomass with subsequent increase in groundnut pod yield similar to hoe-weeding treatments and better than either herbicide applied alone. The highest groundnut pod yield (1485.7 kg ha<sup>-1</sup>) and revenue ($1639.2) in the early season was obtained with three hoe weeding passes. However, in the late season, the highest groundnut pod yield (1146.3 kg ha<sup>-1</sup>) was obtained with propaben plus hoe-weeding and the highest revenue ($1264.8) obtained with butachlor plus hoe-weeding. Although three hoe-weedings gave the highest revenue in the early season, the gross margin and cost-benefit ratio obtained with hoe weeding treatments was lower than those of herbicides fb shw. This study showed that integrated weed management with butachlor or propaben and fb shw will improve weed control, productivity and profitability of groundnut production. Multiple hoe weeding, however, did not guarantee the highest profit but rather increased the cost of production.</p>


2020 ◽  
Vol 53 (4) ◽  
pp. 199-206
Author(s):  
Olumide Samuel Daramola ◽  
Joseph Aremu Adigun ◽  
Olusegun Raphael Adeyemi

AbstractWeed management is one of the most important and expensive steps in okra production. Field experiments were therefore conducted in the early and late wet seasons of 2015 to evaluate the effectiveness and profitability of weed management using hoe weeding, herbicides or their combination in okra production. Propaben or butachlor at 2.0 kg a.i. (active ingredient) ha–1 followed by (fb) supplementary hoe weeding (shw) at 6 weeks after sowing (WAS) significantly (P < 0.05) reduced weed density and biomass with subsequent increase in okra fruit yield similar to three hoe weedings and better than two hoe weedings or either herbicide applied alone in both early and late wet seasons. Although three hoe weedings provided the highest okra fruit yield (3590 and 4102 kg ha–1) and total revenue ($991.7 and $1699.7 ha–1), the gross margin ($186.4 and $931.6 ha–1) and cost-benefit ratio (0.2 and 1.2) obtained were lower than those obtained with herbicide treatments. Highest gross margin ($470.8 and $1224.9 ha–1) and cost-benefit ratio (1.2 and 3.0) in the early and late wet seasons, respectively, were achieved with propaben at 2.0 kg a.i ha–1 fb shw at 6 WAS. The results of this study suggest that integrated weed management with propaben followed by supplementary hoe weeding will improve weed control, productivity and profitability of okra. Multiple hoe weeding, however, did not guarantee highest profit but rather increased the cost of production.


2017 ◽  
Vol 4 (03) ◽  
Author(s):  
MANDHATA SINGH ◽  
DEOKARAN . ◽  
ARIF PARWEZ ◽  
S. KUMAR ◽  
U. R SANGLE

Productivity of lentil in rainfed ecology is very low and crop was infested with different soil and seed born fungal disease. In light of fragment information available on response of seed treatment with Trichodermaharzianum strains S1 and S3, a field experiment was conducted during winter seasons of 2013-14 and 2014-15 at experimental farm of KrishiVigyan Kendra, Buxar and farmers field. Among different seed treatment practices coupled with IRRI BMP, Trichoderma strain S3 produced the highest number of pods/plant (59.6) and 100-grain weight (2.60 g) followed by seed treatment with S1+ IRRI BMP and Thiram+IRRIBMP. However, farmers’ practice recorded lowest value of all these traits. Highest number of nodules/plant (15.80) and dry matter of nodules, (37.12 mg/plant) were recorded under seed treatment with S3+IRRI BMP followed by S1+IRRI BMP and Thiram+IRRI BMP in order. Seed treatment with S3+IRRI BMP recorded highest root length (25.2 cm), root dry weight (0.90 g/plant) and seed yield (13.33 q/ha) followed by seed treatment with S1+IRRI BMP and Thiram+IRRI BMP in order. However, farmers’ practice recorded minimum value of these traits. Economic analysis of data showed that maximum net return (Rs 23489/ha) and cost-benefit ratio (2.42) was recorded under seed treatment with strain S3+IRRI BMP followed by seed treatment with S1+IRRI BMP and Thiram+IRRI BMP. However, minimum economic return was recorded with farmers’ practice.


2019 ◽  
Vol 65 (No. 6) ◽  
pp. 313-319 ◽  
Author(s):  
Tatiana Arkhipova ◽  
Nailya Galimsyanova ◽  
Ludmila Kuzmina ◽  
Lidiya Vysotskaya ◽  
Ludmila Sidorova ◽  
...  

Bacterization of the seeds of spring durum wheat with the strains of gram-positive aerobic spore-forming bacteria Bacillus subtilis IB-21 and B. subtilis IB-22 and gram-negative bacteria Advenella kashmirensis IB-К1and Pseudomonas extremaustralis IB-К13-1А was performed to study its effect on the productivity of plants, their hormonal content and rhizosphere phosphorus (P) status in the field experiments. A. kashmirensis IB-К1 andP. extremaustralis IB-К13-1А were the most capable of mobilizing hardly soluble phosphates in vitro, while P. extremaustralis IB-К13-1А produced the greatest concentration of auxins. All the studied strains successfully colonized the plant root system, the level of colonization detected during the second leaf stage being the highest in the case of A. kashmirensis IB-К1 and B. subtilis IB-22. Seed treatment with all the tested bacterial species resulted in an increase in phosphate mobility in the rhizosphere. Auxin content in wheat roots was increased by bacterization of seeds with P. extremaustralis IB-К13-1 and B. subtilis IB-22. The maximum increase in components of wheat crop yield (the mass of grains in the main and axillary spikes) was detected during 3 vegetative periods (2016, 2017 and 2018) in the case of seed treatment with the strains inducing a significant increase in auxin content in the roots of the treated plants related to either the highest bacterial capacity of producing this hormone in vitro (in the case of P. extremaustralis IB-К13-1А) or root colonization (in the case of B. subtilis IB-22).


Author(s):  
M. Jayasekhar ◽  
E. G. Ebenezar

Two field experiments were conducted by using cheap and ecofriendly plant products and biocontrol agents for the management of powdery mildew disease caused by <italic>Erysiphe polygoni</italic> in black gram which is causing severe yield loss. The mean per cent disease incidence ranged from 15.80 to 47.70 in different treatments. The maximum reduction of disease incidence was recorded in wettable sulphur 0.25% (15.80%) followed by carbendazim 0.1% (58.91%) and castor oil 1% with <italic>Ampelomyces quisqualis</italic> (48.53 %) However castor oil 1% followed by <italic>A. quisqualis</italic> application at 10 days interval recorded 20.28 per cent increased yield with maximum cost benefit ratio of 1 : 2.01


2002 ◽  
Vol 41 (01) ◽  
pp. 3-13 ◽  
Author(s):  
M. Schäfers

SummaryNuclear cardiological procedures have paved the way for non-invasive diagnostics of various partial functions of the heart. Many of these functions cannot be visualised for diagnosis by any other method (e. g. innervation). These techniques supplement morphological diagnosis with regard to treatment planning and monitoring. Furthermore, they possess considerable prognostic relevance, an increasingly important issue in clinical medicine today, not least in view of the cost-benefit ratio.Our current understanding shows that effective, targeted nuclear cardiology diagnosis – in particular for high-risk patients – can contribute toward cost savings while improving the quality of diagnostic and therapeutic measures.In the future, nuclear cardiology will have to withstand mounting competition from other imaging techniques (magnetic resonance imaging, electron beam tomography, multislice computed tomography). The continuing development of these methods increasingly enables measurement of functional aspects of the heart. Nuclear radiology methods will probably develop in the direction of molecular imaging.


2020 ◽  
Vol 19 (1) ◽  
pp. 13
Author(s):  
Leury Max Da Silva Chaves ◽  
Gabriel Vinicius Santos ◽  
Cauê La Scala Teixeira ◽  
Marzo Edir Da Silva-Grigoletto

 Bodyweight exercises (also popularly known as calisthenics) is a classic training method and its practice has been widespread since the 19th century, but little evidenced in the scientific literature over the years. This type of training aims to promote multi-system adaptations using body weight as an overload with no or few implements [1–3]. This characteristic makes exercise with body weight easy to apply, in addition to having an excellent cost-benefit ratio when compared to other training possibilities that require machines or materials [4,5].


2018 ◽  
Vol 51 (3) ◽  
pp. 89-99
Author(s):  
P.B. Sandipan ◽  
P.K. Jagtap ◽  
M.C. Patel

Abstract Niger (Guizotia abyssinica Cass.) is an important minor oil seed crop grown in dry areas grown mostly by tribal and interior places as life line of tribal segment. Tribal people mainly use its oil for cooking purpose, above than that there were also other uses. Hence, the niger crop should be protected from the infection. The crop is affected by number of fungal diseases. Therefore, a field experiment was formulated for three years with the four replications at the Niger Research Station (NRS) at Navsari Agricultural University (NAU), Vanarasi, Navsari (Gujarat) on the foliar diseases of GN-1 variety of niger crop. In this experiment, six different fungicides along with one control have been evaluated to control the Alternaria and Cercospora leaf spot diseases, out of which all the fungicidal treatments were significantly superior over the control. Here, foliar spray on the incidence of diseases was compared with the control (without any treatment). All the fungicidal treatments were significantly superior over the control to reduce Alternaria and Cercospora leaf spot diseases of Niger crop. Treatment of Carbendazim + Mancozeb (0.2 %) with two sprays first from the initiation of the disease and second after the interval of 15 days recorded the lowest incidence of Alternaria (14.56) and Cercospora (14.94) leaf spot diseases of niger and recorded the highest seed yield 337 seed yield kg/ha along with the net return with cost benefit ratio graph.


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