scholarly journals Evaluation of chemical pesticides for the management of Top Borer (Scirpophaga excerptalis Walker) in sugarcane

2021 ◽  
Vol 4 (1) ◽  
pp. 282-290
Author(s):  
Kapil Paudel ◽  
Naresh Dangi ◽  
Sunil Aryal ◽  
Rashmi Regmi

An experiment was conducted at research field of National Sugarcane Research Program, Jeetpur, Nepal in 2014 and 2016, to evaluate the efficacy of chemical insecticides against sugarcane top borer (Scirpophaga excerptalis Walker). Nine different treatments viz. Chlorantraniliprole 0.4 G, Cartap hydrochloride 4 G, Fipronil 0.3 G, Carbofuran 3 G (standard check) as soil application and foliar spray of Chlorantraniliprole 18.5 SC, Thiodicarp 75 WP, Spinosad 45 SC, Chlorpyrifos 20 EC (standard check) and one untreated check (control) were used in randomized complete block design with three replications. The top borer susceptible genotype, Co 0238 was planted on February and single application of these insecticides was done on July at brood stage against top borers. The lowest 10.65 and 12.43, 13.68, 14.61, 14.15 percentage of top borer damage was found in foliar application of Chlorantraniliprole @ 35g a.i. /ha followed by Spinosad @ 125g a.i. /ha and soil application of Cartap hydrochloride @ 1500g a.i /ha and foliar application of Thiodicarp @ 1500g a.i. /ha and Fipronil @ 100g a.i. /ha. The infestation percentage reduction over control was found highest in Chlorantraniliprole (69.40%) followed by Spinosad (64.29%) treated plots. Furthermore, the cane yield was highest in Chlorantraniliprole (92.30 mt/ha) and Spinosad (90.06 mt/ha) treated plots than that of other insecticide treated plots. The number of millable canes and cane diameter in the plots among the treatment was found non-significant. Based on the infestation reduction rate, foliar application of the chemical insecticide (Chlorantraniliprole 18.5 SC and Spinosad 45 SC) could be better option for chemical management of sugarcane top borer.  

2021 ◽  
Vol 12 (3) ◽  
pp. 158-164
Author(s):  
A. V. Ramanjaneyulu ◽  
◽  
A. Madhavi ◽  
M. V. Nagesh Kumar ◽  
T. L. Neelima ◽  
...  

A field investigation was carried out to study the influence of zinc and iron micronutrients on the performance of rainfed castor, in Professor Jayashankar Telangana State Agricultural University, Telangana state, India for three consecutive years during kharif 2011-12, 2012-13 and 2013-14. There were nine treatments viz., Control (no micronutrient application); soil application of FeSO4 @ 15 kg ha-1; soil application of FeSO4 @ 25 kg ha-1; soil application of ZnSO4 @ 15 kg ha-1; soil application of ZnSO4 @ 25 kg ha-1; foliar application of 0.5% FeSO4 at 50 DAS; foliar application of 0.5% FeSO4 at 50 and 90 DAS; foliar application of 0.5% ZnSO4 at 50 DAS; foliar application of 0.5% ZnSO4 at 50 and 90 DAS and tested in randomized block design with three replications. The foliar application of ZnSO4 (0.5%) twice at 50 and 90 DAS resulted in significantly higher seed yield (1698 kg ha-1), higher gross returns (Rs. 54344 ha-1), net returns (Rs. 33501 ha-1) and B:C ratio (2.60) over rest of the treatments. The seed yield improvement was to the tune of 54% over no micronutrient application. The uptake of major and micronutrients was greater when the crop received two sprays of ZnSO4 as compared to one spray of ZnSO4, two sprays of FeSO4 and soil application of either of the micronutrients. The castor bean crop responded to Zn better than Fe by producing 10.2% to 12.2% higher seed yield. Foliar spray was found superior to soil application in case of both the micronutrients.


Author(s):  
V. Arthi ◽  
M. V. Sriramachandrasekharan ◽  
R. Manivannan ◽  
Arumugam Shakila

Aims: Banana is the fifth largest agricultural commodity in the world trade after cereals, sugar, coffee and cocoa and second largest fruit crop in the world. The main objective of the study is to know the performance of banana to silicon fertilization grown in typic ustifluvent soil. Study Design: The experiment was conducted in randomized block design. The test crop banana var Grand Naine. Place and Duration of Study: Rajagopalapuram village under Kuttallam taluk, Tamilnadu, India Between July to October 2016 Methodology: The experiment consisted of ten treatments viz., T1-NPK (RDF), T2-NPK+Potassium silicate (FS)- 0.25%,T3-NPK+Potassium silicate (FS)-0.50%,T4-NPK+Potassium silicate (FS)-1.00%,T5-NPK+Potassium silicate (FS)-0.25%,T6 -NPK+ Potassium silicate (FS)-0.50%,T7­-NPK+ Potassium silicate (FS)-1.00%,T8-NPK+Potassium silicate (SA)-50kgha-1,T9-NPK + Potassium silicate (SA)-100 kg ha-1 and T10 -NPK + Potassium silicate (SA)-150 kg ha-1. T2 to T4 foliar spray was done at 3rd and 5th month and from T5 toT7, foliar spray was done at 3rd, 5th and 7th month. Growth, yield parameters and banana yield were recorded. Results: The outcome was that soil application of silicon recorded higher growth and yield compared to foliar application. Pseudo stem height, Pseudo stem girth, LAI, chlorophyll content, sucker production and leaf dry matter weight, fruit characters viz., bunch weight and length, number of hands/ bunches, number of fingers / hands, total number of fingers/ bunches, finger weight, length and girth were highest with soil application of 50 kg Si ha-1. Similarly, foliar application of silicon at 1% applied at 3rd and 5th recorded the highest morphological and fruit characters compared to 0.25 and 0.5% Si. The highest fruit yield ((96.0 t ha-1) was noticed with 50 kg Si ha-1 followed by foliar spray of 1% Si applied at 3rd and 5th month (92.7 t ha-1). Conclusion: It is concluded that soil application of 50 kg Si ha-1 through potassium silicate is best followed by foliar spray of 1.0% Si for realizing higher banana productivity.


2021 ◽  
Vol 42 (2) ◽  
pp. 326-331
Author(s):  
M. Singh ◽  
◽  
K.S. Sandhu ◽  

Aim: To determine the impact of soil and foliar application of ZnSO4.7H2O at late stages of wheat as heading initiation (5% ear formation), 100% heading (complete ear formation) and heading initiation and 100% heading along with recommended dose of fertilizer on growth, yield and quality of zero till wheat. Methodology: The field experiment was conducted on zero till wheat. The treatments consisted of control (no Zn), soil application of 12.5, 25, 37.5, 50 kg ha-1 ZnSO4.7H2O and foliar application of 0.5% Zn as one spray at heading initiation (5% ear formation), one spray at 100% heading (complete ear formation) and two sprays at heading initiation and 100% heading with recommended dose of fertilizer. These treatments were evaluated in RBD with three replications. Results: Soil application of 50, 37.5 and 25 kg Zn ha-1 with two foliar sprays of 0.5% at heading initiation (5% ear formation) and 100% heading (complete ear formation) stages gave significantly higher average grain and straw yield and Zn concentration in grain than other treatments, including control. Interpretation: Enhanced application of Zn as soil and foliar application ameliorates soil Zn deficiency and increases protein content in grains, which might influence the quality and yield of zero tilled wheat. Key words: Foliar spray, Grain yield, Wheat, Zinc


Author(s):  
Y. Rajasekhara Reddy ◽  
G. Ramanandam ◽  
P. Subbaramamma ◽  
A. V. D. Dorajeerao

A field experiment was carried out during rabi season of 2018-2019, at college farm, College of Horticulture, Dr. Y.S.R. Horticultural University, Venkataramannagudem, West Godavari District, Andhra Pradesh. The experiment was laidout in a Randomised Block Design with eleven treatments (viz., T1- NAA @ 50 ppm, T2-NAA @ 100 ppm, T3-GA3 @ 50 ppm,  T4-GA3 @ 100 ppm, T5-Thiourea @ 250 ppm, T6-Thiourea @ 500 ppm, T7-28-Homobrassinolide @ 0.1 ppm, T8-28-Homobrassinolide @ 0.2 ppm, T9-Triacontinol @ 2.5 ppm, T10-Triacontinol @ 5 ppm, T11-(Control) Water spray) and three replications. The treatments were imposed at 30 and 45 DAT in the form of foliar spray. Foliar application of GA3@ 100 ppm (T4) had recorded the maximum plant height (108.20 cm), leaf area (9.53 cm2) and leaf area index (0.74). Foliar application of thiourea @ 250 ppm (T5) had recorded the maximum values with respect to number of primary branches (15.03 plant-1), number of secondary branches (83.40 plant-1), plant spread (1793 cm2 plant-1), fresh weight (376.29 g plant-1), dry weight (103.54 g plant-1) and number of leaves plant-1((298.8). The same treatment (T5) had recorded the highest values with respect to crop growth rate (1.44 gm-2d-1), chlorophyll-a (1.40 mg g-1), chlorophyll-b (0.076 mg g-1) and total chlorophyll contents (1.48 mg g-1) in the leaves.


2015 ◽  
Vol 4 (1) ◽  
pp. 73
Author(s):  
Ogundare S. K. ◽  
Mohammed S. A. ◽  
Owolabi J. F.

Experiments were carried out at the student’s experimental field, Kabba College of Agriculture, Horticulture section to examine the effect of soil application of cow dung combined with foliar application of boost extra on growth and yield of okra in an ultisol, Nigeria. The land was ploughed each year and harrowed with the aid of tractor mounted implements. The experiment was laid out in a randomized complete block design (RCBD). The treatments consisted of A = 3t/ha cow dung, B = 1.0 L/ha foliar + 2.5t/ha cow dung, C =1.5L/ha foliar + 2t/ha cow dung, D    = 2 L/ha foliar      + 1.5 t/ha cow dung, E = 2.5L/ha foliar + 1.0t/ha cow dung, F = 3t/ha foliar. Each year experiment was conducted using a single field having dimension of 35 by 14m which was laid out into three blocks with 1m guard row between blocks. Each block consists of six plots (5 by 4m) and 1m guard row between plots. Cow dung manure was applied a week before planting. Okra variety Lady’s finger was used. Three seeds per hole were planted on April 4th in both years on the flat with a spacing of 60cm x 25cm between and within the rows and later thinned to one plant per stand. Data taken included plant height at 50 % flowering, number of branches per plant, leaf area, pod length, pod diameter, number of pods per plant; and pod weight and yield (t/ha). The data were subjected to Analysis of Variance (ANOVA) while the Least Significant Difference (LSD) was used to separate treatment means. The result shows that plot treated with 2.0L/ha foliar + 1.5 t/ha cow dung had the best performance in yield and yield components in this study. It is therefore recommended that okra farmers should integrated foliar fertilizer (boost extra) at the rate of 2L per hectare with cow dung at rate of 1.5t per hectare be used for okra production in the study area.


2017 ◽  
Vol 4 (3) ◽  
pp. 157-164
Author(s):  
Mohammad Issak ◽  
Most Moslama Khatun ◽  
Amena Sultana

The experiment was conducted to study the effect of salicylic acid (SA) as foliar spray on yield and yield contributing characters of BRRI Hybrid dhan3.The experiment was laid out in a randomized complete block design (RCBD) with three replications and six treatment combinations as, T1: 0 μM SA, T2: 200 μM SA, T3: 400 μM SA, T4: 600 μM SA, T5: 800 μM SA and T6: 1000 μM SA. The results revealed that biomass production, dry matter production and yield and yield contributing characters were significantly increased due to the foliar application of SA. At the maximum tillering (MT) stage, the highest biomass production (15.0 t/ha) and dry matter production was observed in T3 treatment. Treatments T4, T5 and T6 showed significant variation on the effective tillers/hill. The maximum effective tillers/hill were found in the treatment T6. The percentages of spikelet sterility were decreased with increasing the level of SA and the percentage of filled grains/panicle were increased with increasing level of SA. The insect infestation was reduced with increasing level of SA to up to 1000 μM. The maximum grain yield (9.21 t/ha) and straw yield (9.22 t/ha) was found in the treatment T6 which was identical to T5. On the other hand, in all cases the lowest results were found in the control treatment. The result showed that grain yield of rice increased with increasing level of SA to up to 1000 μM (T6 treatment). Our results suggest that foliar spray of SA might be applied to increase the yield of hybrid rice in Bangladesh.Res. Agric., Livest. Fish.4(3): 157-164, December 2017


Author(s):  
. Roohi ◽  
Kiran K. Khokhar ◽  
Vijay Kumar ◽  
Kanika Pawar

The foliar application of nutrients help the plant leaves to readily absorb the applied nutrients through the nutrient solution and increases the nutrient use efficiency and thus improves the crop yield. The field experiment was conducted for two consecutive years to find out the affect of foliar spray of NPK and micronutrient on cane yield, yield parameters and juice quality of sugarcane during 2019-20 and 2020-21.The present study was carried out on clay loam soils of Research farm of Regional Research Station, CCS Haryana Agricultural University, Karnal, Haryana. The research revealed that cane yield and yield parameters i.e., cane length, and cane weight was significantly affected with the foliar spray of NPK and micronutrient but non-significant effect was observed for cane girth and number of internodes. With respect to juice quality parameters viz., commercial cane sugar (CCS) %, pol % and sugar yield, significantly affected with foliar spray of NPK and micronutrient. The highest cane yield, cane weight and cane length was recorded with the foliar application of 2% NPK (19:19:19) + 0.5% ZnSO4 +1% FeSO4 (78.16 t/ha, 1.21 kg and 207.3 cm) followed by foliar spray of 0.5% ZnSO4 + 1% FeSO4+ 2.5% urea recorded 76.75 t/ha, 1.20 kg and 207.1 cm, respectively. The lowest cane yield (70.68 t/ha) was recorded with the application of recommended dose of fertilizer (RDF) alone. The highest CCS % (12.16), pol % (17.36) and sugar yield (9.51 t/ha) was observed in the treatment 2% NPK + 0.5% ZnSO4 +1% FeSO4. Thus, foliar application with NPK and micronutrient could significantly improve the cane yield, yield parameters and juice quality of sugarcane crop.


2018 ◽  
Vol 2 (1) ◽  
Author(s):  
Pushpa C Tomar

Foliar Application seems to be an upcoming and ongoing research area especially in the field of agriculture. This is been in practice in various parts of the world and proved its positive results in its field [1,2]. Foliar application can be explained as spraying the suitable fertilizer solution (condition is, that it should be water soluble) on the surface of the leaves of growing plants [3]. This practice not only saves quantity of fertilizer used but also improves the uptake of a particular micronutrient by the crops and boosts the yield too. Interaction between crop’s genetic potential and the environment in which it grows is detrimental for the yield of a crop [4]. Soil application of nitrogen is a conventional method to supply nitrogen to plants and for improvement in any field adhering to the old ways will not be a better option [4]. In some instances, the availability of urea becomes inadequate for the farmers at sowing time. In such situation the foliar application of plant nutrient is effective and economical for some crops [5]. It has been shown in some studies that uptake of micronutrients directly from plants is more rapid and quicker for better results in yields than soil application[1]. As mentioned above, that the fertilizer should be water soluble for foliar spray and moreover, it should also be noted that the particular crop plant also should be suitable for aerial spray. The best results of foliar application also depends on the soil condition as if soil conditions are unfavourable when micronutrients are needed, it may be desirable to make foliar applications of the plant nutrients


2018 ◽  
Vol 13 (2) ◽  
pp. 172-177
Author(s):  
D Dhanasekaran

Turf grasses have been utilized by humans to enhance their environment for more than 10centuries. Aesthetically, lawns enhance the quality of life, contribute to social harmony andcommunity pride, increase property values and compliment other landscape plants. The beautyof any garden largely depends on the greenness of the lawn. The first and foremost criteria fora well establishment and a satisfactory lawn are selection of suitable grass species and methodsof its establishment. Hence, an experiment was laid out to study the effect of different spriggingdensity and foliar nitrogen on the growth and establishment of bermuda grass (Cynodon dactylonL. Pers. x Cynodon transvaalensis) in floriculture unit of the Department of Horticulture, Facultyof Agriculture, Annamalai University, Tamil Nadu during the year 2013-2015. Bermuda grasssprigs were planted in different spacing levels and foliar spray of urea with twelve treatmentcombinations comprising of different levels viz., 10 x 10 cm with 1%, 1.5% and 2%; 15 x 15 cmwith 1%, 1.5% and 2%; 20 x 20 cm with 1%, 1.5% and 2%; 25 x 25 cm with 1%, 1.5% and2%, in factorial randomized block design with three replications. From the results, it wasfound that the earliest spread and ground cover were observed in planting sprigs at closerspacing of 10 x 10 cm in combination with foliar application of nitrogen in the form of urea as2 % for two times at seven and fifteen days after planting.


2020 ◽  
Vol 2 (1) ◽  
pp. p263
Author(s):  
Shahnaz Parveen ◽  
Mohammad Issak ◽  
Md. Sohanur Rahman ◽  
Fakhar Uddin Talukder ◽  
Shanta Islam

Objective of this study was to examine and evaluate the role of different rates of salicylic acid (SA) as foliar spray on growth and yield performance of BRRI dhan29. The experiment was conducted at Sher-e-Bangla Agricultural University, Bangladesh from November, 2016 to May, 2017 following a randomized complete block design with five rates of SA in six replications. The results showed that the lower rate of SA (upto 0.75 mM) has a positive effect on rice biomass production including effective tiller per hill, filled grain per panicle, grain yield and straw yield. The highest dry matter production at both maximum tillering and panicle initiation stages was found at SA spray rate of 0.5 mM. The highest number of effective tillers per hill (14.7) as well as the highest filled grain (120.4) and grain yield (8.1 t/ha) were found at SA rate of 0.75 mM. However, the maximum biomass production was obtained at SA rate of 0.25 mM. The minimum grain yield (7.0 t/ha) was observed in the control treatment.


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