scholarly journals Integrated management of tobacco caterpillar and cabbage butterfly with host plant resistant and organic amendment

2018 ◽  
Vol 43 (4) ◽  
pp. 619-630
Author(s):  
S Talukder ◽  
MMH Khan ◽  
J Ferdous ◽  
MO Faruq

Field study was conducted at Patuakhali Science and Technology University, Patuakhali during 2013-2014 to know the effect of cabbage variety and organic agriculture on the damage potential of Spodoptera litura F. and Pieris brassicae L. Two cabbage varieties viz., Atlas-70 (V1) and Super tropic (V2), and organic agriculture like, M0 = control, M1 = cowdung @ 6 kgplot-1, M2 = mustard oilcake @ 750gplot-1, M3 = Vermicompost @ 3 kgplot-1 and M4 = Trichoderma @ 3 kgplot-1 were included in this study. Treatment combinations were V1M0, V1M1, V1M2, V1M3, V1M4, V2M0, V2M1, V2M2, V2M3 and V2M4. Results revealed that the lowest number of infested plants/plot and percent infested leavesplant-1 were found in variety Super tropic and trichoderma (V2M4) applied plots followed by variety Atlas-70 and vermicompost (V1M3) applied plots on different dates of observation while the highest number of infested plantsplot-1 and percent infested leaves plant-1 were in variety Super tropic and mustard oil cake (V2M2) applied plots followed by variety Atlas-70 and control (V1M0) applied plots. The highest number and percent (4.00 plot-1) and (20.00% plot-1) of infested heads were found in variety Super tropic and mustard oil cake (V2M2) applied plots followed by variety Atlas-70 and control plots (V1M0) (16.65%). The highest number of healthy heads plot-1 (19.67), healthy head yield (71.47 t ha-1) and total head yield (72.14 t ha-1) were recorded in variety Super tropic and Tricoderma (V2M4) applied plots followed by variety Atlas-70 and vermicompost (V1M3) (70.53 t ha-1) applied plots while the lowest number of healthy heads per plot, healthy head yield and total head yield were recorded in in variety Super tropic and mustard oil cake (V2M2) applied plots followed by variety Atlas-70 and control plots (V1M0).Bangladesh J. Agril. Res. 43(4): 619-630, December 2018

2018 ◽  
Vol 43 (1) ◽  
pp. 13-23
Author(s):  
L Yasmin ◽  
MA Ali ◽  
FN Khan

Integrated management of Fusarium wilt of gladiolus was studied at Horticulture Research Centre (HRC), Bangladesh Agricultural Research Institute (BARI), Gazipur during 2011-2013 following RCB design with four replications. Seven treatment such as (1) Corm treated with Bavistin @ 0.1% for 15 minutes, (2) Corm treated with hot water @ 54oc for 5 minutes, (3) Corm treated with hot water @ 52oc for 10 minutes, (4) Poultry refuse @ 5t/ha, (5) Mustard oil cake @ 600 kg/ha, (6) Bio-pesticide @ 64kg/ha, (7) Bavistin @ 0.1% as soil drenching were evaluated in nine different combinations against the Fusarium wilt of gladiolus (Fusarium oxysporum f. sp. gladioli) under naturally infested field condition. Corm treated with Bavistin (0.1%) for 15 minutes + Poultry refuse @ 5t/ha in soil application 25 days before corm sowing + Bavistin @ 0.1% as soil drenching at 45 days after corm sowing gave best integrated management option for reducing Fusarium wilt of gladiolus and thereby resulting maximum germination, spike length, rachis length, florets spike-1, flower sticks, corm and comel yield. Besides, integration of Bavistin (0.1%) as corm treatment for 15 minutes + Mustard oil cake @ 600 kg/ha in soil application 25 days before corm sowing + Bavistin (0.1%) as soil drenching at 45 days after corm sowing was also better option for combating Fusarium wilt of gladiolus. The alternate option was integration of Bavistin (0.1%) as corm treatment for 15 minutes + Bio-pesticide in soil application 7 days before corm sowing + Bavistin (0.1%) as soil drenching at 45 days after corm sowing was effective against the disease incidence as well as better spike length, rachis length, florets spike-1, flower sticks, corm and cormel yield.Bangladesh J. Agril. Res. 43(1): 13-23, March 2018


2016 ◽  
Vol 41 (4) ◽  
pp. 675-684
Author(s):  
L Yasmin ◽  
MA Ali

The experiment was conducted at Horticulture Research Centre (HRC), Bangladesh Agricultural Research Institute (BARI), Joydebpur, Gazipur during 2009-2011 following RCB design with four replications. Eight soil amendments such as Poultry refuse (5 t ha-1), Mustard oil cake (600 kg ha-1), Sesbania rostrata (5 t ha-1), Municipal waste compost (5t ha-1), BARI Trico- compost (2t ha-1), Leachate (200 ml m-2) were evaluated against Fusarium wilt of gladiolus caused by Fusarium oxysporum f. sp. gladioli under field condition. Poultry refuse was very effective in inhibiting the disease resulting maximum germination (99.98%), spike length (73.90 cm), rachis length (43.70 cm), florets spike-1 (12.63), flower sticks plot-1 (38.75) and corm plot-1 (60.23) and cormel yield ha-1 (2.51 t). Mustard oil cake, BARI Trico-compost and Sesbania rostrata compost were also effective in inhibiting the disease and resulting better spike length, rachis length, florets spike-1, flower sticks plot-1 and corm plot-1 and cormel yield.Bangladesh J. Agril. Res. 41(4): 675-684, December 2016


2021 ◽  
Vol 23 (2) ◽  
pp. 103-109
Author(s):  
MM Rahman ◽  
M Uddin

An experiment was conducted at Khitrokashipur, Durgapur, Rajshahi during March to June 2018 to study the effect of organic amendment on soil quality and yield performance of dry direct seeded boro rice var. BRRI dhan28. The treatments were Trichocompost (TC), Vermicompost (VC), mustard oil cake (MOC), Trichocompost + mustard oil cake (TC+MOC), Vermicompost + mustard oil cake (VC + MOC), and no amendment control. The experiment was laid out in a randomized complete block design with three replications. Trichocompost and Vermicompost were applied @ 3 t ha-1, while mustard oil cake was used @ 0.5 t ha-1. The results revealed that Trichocompost and vermicompost fertilization exerted significant influence on yield performance of BRRI dhan28 in boro season. The treatment trichocompost (T1) @ 5 t ha-1 produced the highest grain yield (5.95 t ha-1), while the mustard oil cake (T3) @ 0.5 t ha-1 the highest effective tillers hill-1 (15.33), though  the highest straw yield (5.46 t ha-1) was produced in the treatment VC + MOC (T5). In case of soil properties, Trichocompost (T1) @ 3 t ha-1 and mustard oil cake (T3) @ 0.5 t ha-1 improved soil organic matter content, while Trichocompost (T1) @ 3 t ha-1 and Vermicompost (T2) @ 0.5 t ha-1 improved phosphorus and potassium content. Field capacity was greatly influenced by Trichocompost (T1) @ 3 t ha-1 and Vermicompost + mustard oil cake (T5). Soils with Trichocompost (T1) @ 3 tha-1 showed the highest bulk density. It was concluded that organic amendment greatly improved the yield performance of BRRI dhan28 and also soil physical and chemical properties under dry direct seeded boro rice cultivation system. Bangladesh Agron. J. 2020, 23(2): 103-109


2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Jinmei Yin ◽  
Jun Yin ◽  
Zhiwu Tian ◽  
Peiqiu Li ◽  
Xiaoqiu Chen

Abstract Background During the outbreak of new coronavirus pneumonia, many hospitals in China became the designated hospitals for the treatment of new coronavirus pneumonia. The goal was to develop rapid and effective prevention and control methods for blood purification centers. Research design and methods The medical department, hospital department, nursing department, and blood purification center jointly set up a multi-department integrated COVID-19 prevention and control management team to manage the blood purification center. The efforts included the establishment of the continuous renal replacement therapy (CRRT) team for COVID-19, the integrated training and assessment of medical personnel, the integrated education of patients and their families, and the integrated management of the workflow of the hemodialysis room. Results No infected persons, including medical staff, patients, and their families, have been found in the dialysis center. After multi-departmental integrated training, the theoretical performance of medical staff in our dialysis center has increased from 82.36 ± 8.10 to 95.29 ± 4.95 (p < 0.05), and the unqualified rate dropped from 23.21 to 1.78% (p < 0.05). In addition, the three operational skills evaluation scores have also been significantly improved, from 86.00 ± 4.02, 88.01 ± 6.20, 92.01 ± 2.46 to 95.90 ± 0.30, 97.21 ± 0.87, 96.00 ± 1.00 (p < 0.01), and the passing rate from 80.36 to 100% (p < 0.05). Conclusion Medical staff’s knowledge of novel coronavirus pneumonia prevention and control can be improved by multi-sectoral integrated management, and CRRT treatment of COVID-19 patients is effective.


2013 ◽  
Vol 726-731 ◽  
pp. 3506-3512 ◽  
Author(s):  
Shu Yuan Li ◽  
Jian Hua Tao ◽  
Lei Yu

Zhangweinan basin is a typical area where has the most serious water resource shortage and water environmental deterioration problems in north of China. To improve the increasingly deteriorated water eco-environment, studies on the integrated management of water resources and water environment in the basin were carried out with focus on the prevention and control of water pollution, and based on which, an integrated management platform on water environment was developed. This paper introduces the platform architecture and elaborates the construction process of the total pollutant load control model and pollution incident early warning model. This platform provides technical supports for weakening the total pollutant load in the basin, reducing the pollutant load flowing into the Bohai Sea, and increasing the eco-flow of river channel and flow into the Bohai Sea.


Biology ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 1136
Author(s):  
Caiyun Xiao ◽  
Rongyu Li

Soft rot causing Fusarium oxysporum is one of the most destructive diseases of Dendrobium officinale Kimura et Migo in China that reduces D. officinale yield and quality. A key challenge for an integrated management strategy for this disease is the rapid and accurate detection of F. oxysporum on D. officinale. Therefore, a new loop-mediated isothermal amplification (LAMP) assay was developed for this purpose. In this study, the primers were selected and designed using the translation elongation factor-1α (TEF-1α) gene region as the target DNA sequence in order to screen the best system of reaction of LAMP to detect F. oxysporum through optimizing different conditions of the LAMP reaction, including time, temperature, concentrations of MgSO4, and concentrations of inner and outer primers. The optimized system was able to efficiently amplify the target gene at 62 °C for 60 min with 1.2 μM internal primers, 0.4 μM external primers, 7 mM Mg2+, and 5 fg/µL minimum detection concentration of DNA for F. oxysporum. The amplified products could be detected with the naked eye after completion of the reaction with SYBR green I. We were better able to control the effect of soft rot in D. officinale using fungicides following a positive test result. Additionally, the control effect of synergism combinations against soft rot was higher than 75%. Thus, LAMP assays could detect F. oxysporum in infected tissues of D. officinale and soils in field, allowing for early diagnosis of the disease.


2021 ◽  
Vol 51 (2) ◽  
Author(s):  
Eduardo Avelino Faleiro ◽  
Diego Martins Chiapinotto ◽  
Fabiane Pinto Lamego ◽  
Carlos Eduardo Schaedler ◽  
Eduardo Bohrer de Azevedo

ABSTRACT: The objective of the study was to evaluate the efficiency of herbicides use in the control of tough lovegrass according to the availability of solar radiation and the presence or absence of flooded. Two experiments were conducted in a completely randomized design, in a 2x2x4 and 2x2x5 factorial scheme, where factor A was equivalent to the environment (natural or reduced radiation); factor B to water condition (with a 2 cm flooded or without); and, factor C the herbicides: cyhalofop butyl (315 g ha-1), glyphosate (1080 g ha-1), cyhalofop butyl + glyphosate (315 g ha-1 + 1080 g ha-1) and control (without application) in the first experiment. In the second experiment, the herbicides used were cyhalofop butyl (315 g ha-1), glyphosate (1080 g ha-1), sethoxydim (184g ha-1), imazethapyr (106 g ha-1) and control (without application). Glyphosate efficiently controls plants of tough lovegrass with four tillers (>90%), being superior to cyhalofop, imazethapyr and sethoxydim; independently, of resource conditions. Reduction in the availability of solar radiation generates less shoot dry mass production from the weed, and improves the control only by imazethapyr and cyhalofop. In general, a flooded condition does not affect tough lovegrass control by herbicides.


2021 ◽  
Vol 47 (3) ◽  
pp. 157-161
Author(s):  
Augusto César Pereira Goulart

ABSTRACT The aim of this study was to verify the influence of previous crops and fungicide seed treatment in the incidence and control of damping-off caused by Rhizoctonia solani in cotton seedlings under greenhouse conditions. This experiment was carried out during two years at Embrapa Western Agriculture, in Dourados, Mato Grosso do Sul State, Brazil. In addition to cotton (treated and untreated seeds) and fallow, the following cover crops were tested as previous crops: black oats, millet, corn, forage sorghum, soybean, common beans, crotalaria (Crotalaria juncea), brachiaria (Urochloa ruziziensis) and brachiaria (Urochloa ruziziensis) + crotalaria (Crotalaria juncea). The fungicide mixture used as treatment to cotton seeds was triadimenol + pencycuron + tolylfluanid (50 + 50 + 30 g a.i./100 kg seeds). Seeds from cotton and previous crops were sown in soil contained in plastic trays and pots; the seeds were placed in individual and equidistant 3cm-deep wells. Inoculation of R. solani was obtained by homogeneously distributing the fungal inoculum onto the substrate surface (2.5g/tray and 0.34g/pot). The fungus was grown for 35 days on autoclaved black oat seeds subsequently ground to powder using a mill (1mm). Damping-off was daily evaluated from the seventh day after sowing. There was a significant effect of the interaction previous crops x fungicide treatment (P<0.05). The fungicide seed treatment was efficient in controlling seedling damping-off caused by R. solani and its effect was potentiated when grasses were the previous crops. Use of grasses such as brachiaria (Urochloa ruziziensis), black oats, millet, corn and forage sorghum as previous crops, besides fallow, significantly contributed to a smaller R. solani population in the soil, which resulted in lower rates of cotton seedling damping-off. On the other hand, using cotton continuously, as well as the legumes soybeans, beans, crotalaria (Crotalaria juncea), and brachiaria (Urochloa ruziziensis) + crotalaria (Crotalaria juncea) as previous crops to cotton, was consistently associated with higher rates of seedling damping-off, contributing to the increase or at least the maintenance of R. solani inoculum in the soil. The highest damping-off percentages were observed in plots under continuous cotton cultivation without fungicide seed treatment. The present results reinforce the need of improving damping-off control in cotton seedlings by adopting integrated management programs in areas infested with R. solani.


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