scholarly journals Evaluation of the Efficacy of Chemical Insecticides and Biopesticides against Flea Beetle in Cabbage (Brassica oleracea var. Capitata)

2021 ◽  
pp. 1-10
Author(s):  
Fatima Farhana ◽  
Md. Abdul Latif ◽  
Mohammed Ali
Keyword(s):  
Untreated Control ◽  
Block Design ◽  
Flea Beetle ◽  
Maximum Yield ◽  
Control Treatment ◽  
Seed Kernel ◽  
Neem Seed ◽  
Phyllotreta Striolata ◽  
Infestation Intensity ◽  
Harvesting Stage

Aims: This study aimed to evaluate chemical insecticides and bio-pesticides against flea beetle in cabbage. Study Design: The experiment was laid out at a randomized complete block design with three replications. Place and Duration of Study: Experimental farm of Sher-e-Bangla Agricultural University, Bangladesh during the period from October 2017 to March 2018. Methodology: The experiment consisted of nine treatments viz. T1(Sevin 85 WP @ 2g/L of water), T2 (Decis 2.5 EC @ 1.0 ml/L of water), T3 (Voliam flexi @ 0.5 ml/L of water), T4 (Ripcord 10 EC @ 1.0 ml/L of water), T5 (Dursban 20EC @ 1 ml L-1 of water), T6 (Tobacco leaf extract @ 3 g L-1 of water), T7 (Neem seed kernel extract @ 3 g L-1 of water), T8 (Bioneem plus 1 EC @ 1 ml L-1 of water) and T9 (Untreated Control) were used at 7 days interval. Results: Stripped flea beetle(Phyllotreta striolata) and white-spotted flea beetle (Monolepta signata), these two species of flea beetle were found in the experimental field. Among all the treatments T4 (Ripcord 10EC)performed the best in managing flea beetles based on the lowest percentage of leaf infestation (5.84%), lowest no. of holes per plant (6.13), lowest percentage of head infestation by number (18.04) and highest percentage of infestation reduction over control on all parameters at vegetative stage of plant. Again, the lowest leaf infestation intensity (5.73%), lowest number of holes per infested head (14.00), lowest percentage of infestation of head by number (6.69) were achieved at harvesting stage from the same treatment (T4) whereas the highest values of all these parameters were achieved from untreated control treatment (T9). T4 treatment provided the best performance in yield where yield was increased (112.51 %) over control, giving maximum yield 75.76 tons ha-1. Bioneem plus 1 EC (T8) performed the best among the biopesticides while the neem seed kernel extract showed less effectivity against flea beetle. Conclusion: It is concluded that in case of chemical insecticides Ripcord 10EC while in case of biopesticides Bioneem plus 1 EC would be effective for flea beetle management.

scholarly journals Eco-friendly management approach to control cabbage flea beetle in Jashore region of Bangladesh

2020 ◽  
Vol 31 (2) ◽  
pp. 68-73
Author(s):  
TS Munmun ◽  
MJ Alam ◽  
MM Khatun ◽  
NU Ahmed ◽  
NU Mahmud
Keyword(s):  
Untreated Control ◽  
Agricultural Research ◽  
Block Design ◽  
Flea Beetle ◽  
Sticky Trap ◽  
Control Treatment ◽  
Management Approach ◽  
Cost Ratio ◽  
Research Station ◽  
Gross Margin

The experiment was conducted during rabi season 2018-19 and 2019-20 at Regional Agricultural Research Station Jashore to develop a bio-rational based sustainable management approach to control flea beetle of cabbage. The experiment was laid out in a randomized complete block design with three dispersed replications. Cabbage seedlings were transplanted on 10th November 2018 and 11th November 2019, respectively. The experiment was five different treatments with one control treatment viz. T1 = White color sticky trap + Matrin (Biotrine 0.5% @ 1ml/L of water) @ 1ml/L of water, T2 = Spraying of Antario @1.0 ml/L of water, T3 = Alternate spraying of fizimite and Antario @ 1ml/L of water, T4 = Spraying of Bio-clean (D-Lemonine 5% SL) + application of recharge @ 3gm/L of water, T5 = Spraying with Nitro 505EC (Chlorpyriphos + Cypermethrin) @ 2.0 ml/L of water and T6 = Untreated control. The whole plant was thoroughly covered by spray emulsion. The lowest number of flea beetle (14.59 in 2018-19 and 10.33 in 2019-20) was found in the treatment T5 (Spraying with Nitro 505EC (Chlorpyriphos + Cypermethrin) @ 2.0 ml/L of water) and highest (35.76 in 2018-19 and 42.53 in 2019-20) in control (T6) treatment. The lowest percent of head infestation of cabbage was also recorded in T5 treatment (14.03% in 2018-19 and 5.10% in 2019-20) and the highest in T6 treatment (27.61% in 2018-19 and 23.69% in 2019-20). The highest yield (33.40 t/ha in 2018-19 and 32.49 t/ha in 2019-20) was recorded from T5 treatment and the lowest (26.87 t/ha in 2018-19 and 24.78 t/ha in 2019-20) in control (T6) treatment in both the year. On an average, 16.55-20.33 flea beetle were captured in yellow sticky trap per week in both the year. The highest gross margin (438466 Tk.//ha in 2018-19 and 262366 Tk.//ha in 2019-20) was also observed in the T5 treatment in both the year and the lowest (342916 Tk.//ha in 2018-19 and 187666 Tk.//ha in 2019-20) in untreated control (T6) treatment. Finally, the results revealed that the treatment T5 was more profitable compared to other approaches as well as the highest crop yield with marginal benefit cost ratio. Progressive Agriculture 31 (2): 68-73, 2020

scholarly journals Zinc, a micronutrient and its effect to performance of BARI gom30

2020 ◽  
Vol 8 (2) ◽  
pp. 137
Author(s):  
Salamun Gismy ◽  
Md. Romij Uddin ◽  
Md. Sohanur Rahman ◽  
Fakhar Uddin Talukder ◽  
Md. Shafiul Islam Rion
Keyword(s):  
Grain Yield ◽  
Plant Height ◽  
Block Design ◽  
Maximum Yield ◽  
Grain Weight ◽  
Spike Length ◽  
Control Treatment ◽  
Straw Yield ◽  
Four Levels ◽  
1000 Grain Weight

To evaluate the effect of Zinc fertilizer on performance of wheat cv. BARI gom30, an experiment was carried out at Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh, from November 2015 to March 2016. The experiment comprised four levels of Zinc (Zn) viz., 0, 1.5, 2 and 2.5 kg/ha. The experiment was laid out in a randomized complete block design with three replications. Application of Zinc (Zn) plant height, number of total tillers/plant, number of effective tillers/plant, spike length, number of fertile spikelets/spike numbers of sterile spikelets/spike number of grains/ spike, grain yield and straw yield were found significant. But there was no significant effect of the treatment on 1000-grain weight. The highest number of total tiller/plant (4.42), number of effective tillers/plant (3.92), number of grains/spike (47.70), 1000-grain weight (47.73 g), grain yield (5.06 t/ha), straw yield (6.21 t/ha) was obtained from 2 kg Zn/ha. The highest plant height (94.08 cm), spike length (9.92 cm), number of fertile spikelets/spike (19.59) and sterile spikelets/spike (3.22) and harvest index (46.16%) were recorded at 0 kg Zn/ha respectively. The control treatment indicated the lowest value for the yield attributing characters except the number of sterile spikelets/spike. Grain yield was found to be significantly and positively correlated with number of grains/spike and straw yield. It is recommended that application of 2 kg Zn/ha is the best for maximum yield of BARI gom30.   

scholarly journals Productivity, nutrients uptake and quality of forage oat (Avena sativa) and residual soil fertility as influenced by nitrogen and FYM

2021 ◽  
pp. 42-47
Author(s):  
MANOJ PANDEY
Keyword(s):  
Soil Fertility ◽  
Avena Sativa ◽  
Block Design ◽  
Maximum Yield ◽  
Growth And Yield ◽  
Crude Fiber ◽  
Control Treatment ◽  
Residual Soil ◽  
Post Harvest ◽  
Available Nutrients

A field experiment was conducted during rabi season (2014-16) at Research Farm, R.B.S. College, Bichpuri, Agra (U.P.) to study the effect of nitrogen and FYM levels on growth, yield and uptake of nutrients in oat (Avena sativa L.) and soil fertility. The experiment was laid out in randomized block design with four levels of nitrogen (0,50,100 and 150 kg ha-1) and three levels of FYM (0, 5 and 10 t ha-1) with three replications. The results revealed that the plant height, yields of oat crop increased significantly up to 150 kg N and 10 t FYM ha-1 over control. The maximum values of green foliage (447.16 and 414,03 qha-1) and dry matter yield (64.98 and 60.30 q ha-1) were recorded with 150 kg N and 10 t FYM ha-1 , respectively. The application of FYM alone was also found to be more beneficial in terms of growth and yield of oat crop over control. The interaction effect between 150 kg N ha-1 and 10 t FYM ha-1 recorded maximum yield than other treatment combination. The maximum content (14.14 and 14.10 %) and yield of protein in oat crop (920.6 and 853.5 kg ha-1) were recorded with 150 kg N and 10 t FYM ha-1 but maximum value of crude fiber (32.96 and 33.7 %) were recorded under control, respectively. However, crude fiber content in oat was not affected significantly with N and FYM levels. The uptake of major (N,P and K) and micronutrients (Fe,Mn,Cu and Zn) by oat crop increased significantly with the levels of nitrogen up to 150 kg ha-1 and FYM 10 t ha-1, respectively. The status of organic carbon and available nutrients in post harvest soil improved with 150 kg N and 10 t FYM ha-1.The minimum amounts of available nutrients in post harvest soil were recorded under control treatment.

ASSESSING THE SUSCEPTIBILITY OF CRUCIFER SEEDLINGS TO FLEA BEETLE (Phyllotreta spp.) DAMAGE

1988 ◽  
Vol 68 (1) ◽  
pp. 85-93 ◽  
Author(s):  
R. J. LAMB
Keyword(s):  
Field Study ◽  
Block Design ◽  
Flea Beetle ◽  
Pest Resistance ◽  
Phyllotreta Cruciferae ◽  
Phyllotreta Striolata ◽  
Flea Beetles ◽  
Randomized Complete Block Design ◽  
Beetle Damage

A 5-yr field study to develop a method for assessing the susceptibility of crucifer seedlings to damage by the flea beetles Phyllotreta cruciferae (Goeze) and Phyllotreta striolata (F.) is described. The recommended method consisted of five replicate 5-m rows per cultivar in a randomized complete-block design. Each test was sown three times at weekly intervals, to assure that at least one test received an appropriate level of flea beetle damage. Each test was assessed 4–5 wk after seeding by counting the number of surviving seedlings in each row and by weighing the dried aboveground portion of 10 randomly selected seedlings, although the latter discriminated fewer lines. The damage caused by flea beetles varied spatially, but this source of variation was minor and did not compromise the tests. This method proved adequate for discriminating among crucifer species and agronomically similar cultivars, some of which showed consistent, significant differences in their responses to flea beettle damage.Key words: Crucifer, rapeseed, flea beetle, pest resistance

scholarly journals Agronomic Efficiency of Phosphorus Fertilizers With Associate Technology in Soy Crop in Cerrado Soil

2021 ◽  
Vol 13 (10) ◽  
pp. 61
Author(s):  
Victor Gustavo Soares Ribeiro ◽  
Carlos Henrique Eiterer de Souza ◽  
Murilo Mendes Machado ◽  
Lara Lúcia Gonçalves ◽  
Miguel Martins Neto ◽  
...  
Keyword(s):  
Plant Biomass ◽  
Block Design ◽  
Maximum Yield ◽  
Model Fitting ◽  
Phosphate Fertilizer ◽  
Control Treatment ◽  
Phosphate Fertilizers ◽  
Randomized Block Design ◽  
Low Efficiency ◽  
Phosphorus Application

For commercial soybean production, the presence of phosphorus in the soil is essential, not only to increase productivity but also because it affects basic functions in plant metabolism. Phosphate fertilizers have low efficiency in Cerrado soils. For this reason, the use of technologies associated with phosphate fertilizers is important to increase their efficiency in the soil. The experiment was conducted at Fazenda Rio Brilhante in Coromandel, MG. The experiment was laid out in a randomized block design in a 4 × 4 + 1 factorial arrangement. Treatments consisted of four phosphate fertilizer sources (MAPCONVENCIONAL, MAPpol 1, MAPpol 2, and FOM), four P2O5 doses (40, 80, 120, and 160 kg ha-1), and the control treatment (no phosphorus application). The soybean cultivar RK8115 IPRO with a plant population of 340 thousand plants per hectare was used. The experimental plots consisted of five planting lines with a spacing of 0.5 meters and a length of 7 meters. In the experiment, phosphorus leaf, morphological evaluation of plant height, stem diameter, number of stems, and pods were measured. For plant biomass, the dry matter of leaves, stems, and pods were determined. For yield evaluation, the calculation of productivity and RAE was compared with MAPCONVENCIONAL. For sources, data were subjected to analysis of variance, and means were separated by Tukey’s rate test (p < 0.05). For P2O5 doses, regression model fitting was performed using the ExpDes.pt package of R Studio software. Morphological assessments responded linearly to P doses, except for DPM. Leaves and pods P content and yield were affected by P dosage and P sources, with a quadratic response to P dosage. Maximum yield efficiency was achieved at P2O5 doses of 122.73; 145.07; 112.03; and 94.71 kg ha-1, with yields of 3818.30; 4064.67; 4089.03; and 3952.63 kg ha-1 for MAPCONVENCIONAL, MAPpol 2, MAPpol 1, and FOM, respectively. However, MAPpol 1 and FOM provided a dose reduction of 26 and 15 compared to the maximum yield of MAPCONVENCIONAL, respectively.

scholarly journals Effect of Vermicompost and Earthing Up on the Growth and Yield of Onion

2019 ◽  
pp. 1-12
Author(s):  
Shirajum Monira ◽  
Tahmina Mostarin ◽  
Khaleda Khatun ◽  
Md. Ehsanul Haq ◽  
Ismita Akter Soniya ◽  
...  
Keyword(s):  
Block Design ◽  
Maximum Yield ◽  
Field Research ◽  
Growth And Yield ◽  
Control Treatment ◽  
Fresh Weight ◽  
Treatment Combination ◽  
Yield Parameters ◽  
Randomized Complete Block Design ◽  
Two Factors

A field research was conducted at the Horticultural Farm of Sher-e-Bangla Agricultural University, Dhaka-1207 during the period from October 2017 to March 2018 to study the effect of vermicompost and earthing upon growth and yield of onion. The experiment consists of two factors. Factor-A Vermicompost V0 (control), V1 (6 t ha-1 vermicompost), V2 (10 t ha-1 vermicompost) and V3 (14 t ha-1 vermicompost) and Factor-B Earthing up E0 (control), E1 (Two times earthing up) and E2 (Three times earthing up). The experiment was laid out in RCBD (Randomized Complete Block Design) with three replications. The collected data were statistically analyzed. Results revealed that in terms of vermicompost application The highest fresh weight bulb-1 (40.07 g), yield plot-1 (527.89 g) and yield ha-1 (5.39 t) were found from the treatment V3 compared to V0 (control) treatment. Again, in terms of different earthing up treatments, the highest fresh weight bulb-1 (32.48 g), yield plot-1 (431.67 g) and yield ha-1 (4.41 t) were found from the treatment E2 (Three times earthing up) compared to E0 (control) treatment. Both vermicompost and earthing up and their combination showed a considerable variation on different growth and yield parameters of onion. The highest fresh weight bulb-1 (42.73 g), yield plot-1 (567.33 g) and yield ha-1 (5.79 t) were found from the treatment combination of V3E2 compared to control V0E0 (control) treatment combination. And it may be summarized that 14 t/ha vermicompost with three times earthing up performed the maximum yield compared to other treatments.

scholarly journals Pesticides and Neem Seed Kernel Extract on Blights and Tuta absoluta at Different Phenological Stages of Tomato in Hamelmalo Agricultural College, Eritrea

2019 ◽  
pp. 1-12
Author(s):  
Syed Danish Yaseen Naqvi ◽  
Sethumadhava Rao ◽  
Adugna Haile ◽  
Belay Teweldemedhin ◽  
Aggrey Bernard Nyende
Keyword(s):  
Field Experiments ◽  
Disease Incidence ◽  
Block Design ◽  
Tuta Absoluta ◽  
Seed Kernel ◽  
Neem Seed ◽  
Marketable Yield ◽  
Phenological Stages ◽  
Neem Extract ◽  
Agricultural College

Tomato in Eritrea is affected by nearly 30 diseases and insect pests among which blight, leaf curl virus, root-knot nematodes, powdery mildew, Tuta absoluta, Helicoverpa armigera, aphids, whitefly and red spider mites are the most important. In the field, experiments were conducted in Hamelmalo Agricultural College for two consecutive seasons (2015 and 2016) in a Randomized Complete Block Design with three replications. Treatments used were pesticides (mancozeb, dimethoate, deltamethrin) and aqueous Neem seed kernel extract and their combinations. Disease incidence (DI), Disease severity (DS) of blights and infestations of Tuta absoluta [Lepidoptera:Gelechiidae] were assessed at different phenological stages of the crop. Mancozeb alone was not so effective to reduce either DI or DS or damage of plants but it causes declining the number of larvae of T. absoluta at flowering stage. T11 showed the highest control of DI, DS and reduced the larval population of T. absoluta per plot and minimized the damage level. Among all the treatments, T11 and T9 were the most effective to reduce the damage of plants and minimizing the larvae of T. absoluta at fruiting stage. Neem extract had the least effect than all treatments.  Mancozeb (T1) and combinations of Mancozeb + Dimethoate + NSE (T11) gave significantly higher marketable yield than other treatments. The overall Cost-Benefit Ratio (CBR) was similar for all treatments during the two crop seasons, but the average CBR was higher for T11 whereas it was least for T3.

scholarly journals Foliar Fungicides to Control Wheat Stem Rust, Race TTKS (Ug99), in Kenya

Plant Disease ◽  
2009 ◽  
Vol 93 (9) ◽  
pp. 929-932 ◽  
Author(s):  
R. Wanyera ◽  
J. K. Macharia ◽  
S. M. Kilonzo ◽  
J. W. Kamundia
Keyword(s):  
Grain Yield ◽  
Stem Rust ◽  
Untreated Control ◽  
Block Design ◽  
Kernel Weight ◽  
Control Treatment ◽  
Wheat Stem Rust ◽  
Progress Curve ◽  
Rust Severity ◽  
Field Plots

The emergence of a new virulent race of stem rust (Puccinia graminis f. sp. tritici) of wheat (Triticum aestivum), TTKS (Ug99), calls for urgent measures to contain the disease, which is a serious threat to wheat production in Kenya. Nine commercial fungicides were evaluated for control of stem rust in the field in three locations in 2005 and 2006. Ten treatments, including untreated control, were applied on field plots in a randomized complete block design with four replications. Assessment of stem rust severity was done at growth stage (GS) 55 (heading), GS 65 (flowering), and GS 75 (late milk) and expressed in terms of mean rust severity and area under the disease progress curve (AUDPC). In general, fungicide treatment significantly (P ≤ 0.05) reduced rust severity, AUDPC, and losses in grain yield and 1,000-kernel weight for cv. Duma compared with the untreated control. Stem rust was severe in both years across all sites, resulting in significantly less grain yield in the control treatment. The 1,000-kernel weight was significantly less at two locations in 2006. Fungicides azoxystrobin at 200 g/liter + cyproconazole at 80 g/liter (AmistarXtra 280 SC), tebuconazole (Folicur 250 EC), tebuconazole + tridimenol (Silvacur 375 EC), and tebuconazole (Orius 25 EW) were more effective in reducing stem rust across the sites. Fungicides trifloxystrobin + propiconazole (Stratego 250 EC), hexaconazole (Cotaf 5 EC), epoxiconazole + carbendazim (Swing 250 EC), cyproconazole at 80 g/liter + propiconazole at 250 g/liter (Artea 330EC), and epoxiconazole at 125 g/liter + carbendazim at 125 g/liter (Soprano C 250 EC) were inconsistent in the reduction of the disease. The results suggest that fungicides can be used effectively in reducing stem rust severity and increasing yield of susceptible wheat cultivars in stem-rust-prone areas.

PENGARUH METODE DAN DOSIS APLIKASI VERMIKOMPOS TERHADAP PERTUMBUHAN DAN HASIL TANAMAN TOMAT (Lycopersicum Esculentum Miil) HIDROGANIK

2021 ◽  
Vol 5 (1) ◽  
pp. 1
Author(s):  
Ahmad Filardi ◽  
D Djuhari ◽  
N Nurhidayati
Keyword(s):  
Block Design ◽  
Maximum Yield ◽  
Growth Yield ◽  
Growth And Yield ◽  
Control Treatment ◽  
Optimum Dose ◽  
Soilless Culture ◽  
Flower Number ◽  
Application Methods ◽  
Food Needs

The soilless culture system now developed rapidly in line with the decrease of the area ofproductive farmland as well as to meet healthy food needs and nutritious high. Thisresearch developed a soilles culture by using vermicompost organic fertilizers.This studyaimed to test influence of application methods and doses vermicompost on the growthand yield of tomato grown in hidroganic system. This experiment used a FactorialRandomized Block Design. The first factor : application methods of vermicompostconsisting of three levels namely M1 = solid vermicompost, M2 = combination of solid andliquid vermicompost, M3 = liquid vermicompost. The second factor : doses ofvermicompost consisting of five levels namely V1 = 150 grams, V2 = 300 grams , V3 = 450grams , V4 = 600 grams and V5 = 750 grams per polibag, plus control treatment usinginorganic fertilizer. The research results showed that interaction between applicationmethods and vermicompost doses had a significant effect on the growth and yield oftomato plants. The best combination of treatment was solid vermicompost at a dose of600 g/polybag gave a growth of plant height of 78.50 cm, leaf number of 205.33, leaf area of 4516.75 cm2 and flower number 24.78. This treatment had the best yield parametersby the fruit number of 24,33, fruit set of 98,20% and total weight of fruit 447,22 g/plant.Based on the regresion analysis showed that the optimum dose of vermicompost for solidvermicompost was 709.50 g/plant and the maximum yield was 494.70 g/plant. This resultsuggests that the solid vermicompost application can be recommended for hidroganicculture of tomato.Keyword : Tomato, Soilless Culture, Vermicompost, Growth, Yield

scholarly journals Efficacy of Some Synthetic Insecticides and Neem Seed Oil for the Management of Thrips of Mungbean Vigna radiate (L.) Wilezek

1970 ◽  
Vol 16 ◽  
pp. 105-108
Author(s):  
MG Azam ◽  
MMH Bhuyain ◽  
MN Uddin ◽  
MT Islam ◽  
KH Kabir
Keyword(s):  
Seed Treatment ◽  
Management Practices ◽  
Agricultural Research ◽  
Block Design ◽  
Maximum Yield ◽  
Control Treatment ◽  
Botanical Insecticides ◽  
Flowering Stage ◽  
Randomized Complete Block Design ◽  
Neem Seed Oil

Field study was carried out at Bangladesh Agricultural Research Institute (BARI) farm during March to August 2005 to find out the most appropriate management practices against thrips of mungbean. The experiment consisted of seven treatments of various management practices. It was laid out in Randomized Complete Block Design (RCBD) with four replications. The incidence of this pest was first noticed during vegetative and flowering stage. The infestation rate was highest in reproductive stage. Application of Furadan 5G as a seed treatment gave the maximum yield (950.5 kg-ha). On the other hand, minimum yield was found in control treatment. Two times application of Shobicron 425 EC also gave the satisfactory result but it was not economically viable. Neem oil with Trix gave the significant result in comparison with other treatments and it may be environmentally friendly. Key words: Efficacy, Synthetic and botanical insecticides, Megalurothrips distalis, Yield.   DOI:10.3329/jbs.v16i0.3750    J. bio-sci. 16: 105-108, 2008  

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