scholarly journals Residual Toxicity of Newer Insecticide Molecules against Shoot and Fruit Borer of Okra

2020 ◽  
pp. 89-97
Author(s):  
Sagar Anand Pandey ◽  
Saswati Sahu ◽  
V. K. Koshta ◽  
Monika Devi ◽  
Pradeep Mishra
Keyword(s):  
Earias Vittella ◽  
Emamectin Benzoate ◽  
College Of Agriculture ◽  
Residual Toxicity ◽  
Lambda Cyhalothrin ◽  
Fruit Borer

Seven new molecule insecticides viz., Deltamethrin, Lambda-cyhalothrin, Emamectin benzoate, Indoxacarb, Bifenthrin, Rynaxypr and Flubendiamide were bio-assayed against okra shoot and fruit borer (Earias vittella) to study the residual toxicity on Okra at College of Agriculture, Raipur during the Rabi applied season(2014-15 and 2015-16).. On the basis of average LT50 values, the order of toxicity was Emamectin Benzoate > Indoxacarb > Lambda-Cyhalothrin > Rynaxypr > Flubendiamide > Deltamethrin > Bifenthrin against okra shoot and fruit borer.

scholarly journals Bio-rational management packages of jassid and shoot and fruit borer of okra

2018 ◽  
Vol 43 (2) ◽  
pp. 323-332
Author(s):  
A Mohammad ◽  
SN Alam ◽  
MRU Miah ◽  
MR Amin ◽  
HB Saif
Keyword(s):  
Untreated Control ◽  
Agricultural Research ◽  
Cost Ratio ◽  
Earias Vittella ◽  
Mass Trapping ◽  
Emamectin Benzoate ◽  
Benefit Cost Ratio ◽  
Fruit Borer ◽  
Rational Management ◽  
Benefit Cost

The study was conducted for bio-rational management of jassid (Amrasca biguttula biguttula), and shoot and fruit borer of okra (Earias vittella) at experimental field of Bangladesh Agricultural Research Institute (BARI) during April to July 2016. Management Packages used in this study were package 1: Hand picking+ pheromone mass trapping for Earias vittella + spraying of bio-neem plus 1 EC @ 1ml l-1 of water, package 2: Hand picking + pheromone mass trapping for Earias vittella + spraying of emamectin benzoate 5 SG @ 1g l-1 of water, package 3: Hand picking + pheromone mass trapping for Earias vittella + spraying of spinosad 45 SC @ 0.4ml l-1 of water, package 4: Farmers practice: Spraying of cypermethrin 10 EC@ 1ml l-1 of water at seven days interval, and an untreated control. Among the packages bio-neem based one (Package 1) was the best to control jassid population, emamectin benzoate based package (Package 2) was the best to control okra shoot and fruit borer infestation on shoot and spinosad based package (Package 3) was the best to control okra shoot and fruit borer infestation on fruit. Statistically similar yields were obtained from bio-rational package treated plots and their yields were significantly higher than farmer’s practice (Package 4) and untreated control plot. Higher benefit cost ratio (4.57-9.18) was obtained from bio-rational management package treated plots compare to that of farmer’s practice plot (4.50).Bangladesh J. Agril. Res. 43(2): 323-332, June 2018

scholarly journals Effects of Plant Species, Insecticide, and Exposure Time On the Efficacy Of Barrier Treatments Against Aedes albopictus

2018 ◽  
Vol 34 (4) ◽  
pp. 281-290 ◽  
Author(s):  
Benjamin E. McMillan ◽  
Jake E. Bova ◽  
Carlyle C. Brewster ◽  
Nicola T. Gallagher ◽  
Sally L. Paulson
Keyword(s):  
Plant Species ◽  
Aedes Albopictus ◽  
Adult Mortality ◽  
Miscanthus Sinensis ◽  
Chemical Treatments ◽  
Residual Toxicity ◽  
Japanese Honeysuckle ◽  
Lambda Cyhalothrin ◽  
Significant Difference ◽  
Over Time

ABSTRACT The effect of 5 plant species (arborvitae [Thuja occidentalis], boxwood [Buxus sp., Japanese honeysuckle [Lonicera japonica], rhododendron [Rhododendron sp.], and zebra grass [Miscanthus sinensis]) and 2 rates of lambda-cyhalothrin (3.13 ml and 6.25 ml active ingredient [AI]/liter) on knockdown (1 h) and mortality (24 h) of adult female Aedes albopictus was evaluated over an 8-wk period. A significant difference in knockdown was observed between the 2 rates of lambda-cyhalothrin on the 5 plant species, with the highest proportion of knockdown observed on zebra grass and rhododendron treated at the higher rate. Although mortality was ≥60% and 85% on the 5 plant species at the low and high rates of lambda-cyhalothrin, respectively, a significant difference between the 2 rates was only observed on boxwood and Japanese honeysuckle (P < 0.0001). We also tested the residual toxicity of 3 barrier sprays (lambda-cyhalothrin, bifenthrin, and deltamethrin) and evaluated the efficacy of a short (5-min) exposure to the insecticides on knockdown and mortality of adults over time. Significantly higher knockdown was observed with lambda-cyhalothrin compared with bifenthrin and deltamethrin (P < 0.0001). Mean knockdown was ∼98%, 92%, and 20% for lambda-cyhalothrin, bifenthrin, and deltamethrin, respectively, at week 2, and ∼98%, 0%, and 44%, respectively, 8 wk after treatments were applied. Adult mortality from the 3 chemical treatments, however, remained above 90% throughout the study. Lastly, the trends in mean proportion of knockdown were similar for mosquitoes exposed for either 5 min or 24 h to the 3 chemicals. An overall decline in mean mortality over time, however, was observed for mosquitoes exposed for 5 min to the chemicals compared with mortality from the 24-h exposure. The results suggest that lambda-cyhalothrin can be an effective barrier spray treatment against Ae. albopictus adults because its efficacy is limited little by plant species, it has long residual toxicity, and it is effective following only 5 min of exposure.

scholarly journals Comparative Efficacy of Different Tactics for the Management of Okra Shoot and Fruit Borer, Earias Vittella (Fab.) under Field Condition

2016 ◽  
Vol 4 (1) ◽  
pp. 74-78 ◽  
Author(s):  
M.A. Rahman ◽  
M.M. Uddin ◽  
M.A. Haque ◽  
M.M. Rahman
Keyword(s):  
Untreated Control ◽  
Light Trap ◽  
Control Measures ◽  
Earias Vittella ◽  
Neem Oil ◽  
Comparative Efficacy ◽  
Trap Crop ◽  
Trichogramma Chilonis ◽  
Field Efficacy ◽  
Fruit Borer

Comparative field efficacy of different control measures of okra shoot and fruit borer, Earias vittella were evaluated in the Entomology Field Laboratory, Bangladesh Agricultural University during February to May, 2014. Field efficacy of two selected chemical insecticides (Decis 2.5EC, Agritaf 50SP), three botanicals (Neem oil, Pitraj oil and Mahogany oil), one parasitoid (Trichogramma chilonis), Light trap along with Hand picking and Trap crop (Maize) were evaluated by analyzing percent shoot and fruit infestations. BARI-1 (okra variety) was used as a test crop in the experiment. Among the tactics, the minimum shoot (4.72%) and fruit infestations (6.77%) were observed in the plots treated with Decis 2.5EC followed by Neem oil treated plots (4.83% in shoot and 7.56% in fruit). The highest reduction of percent shoot infestation (79.89%) and fruit infestation (64.97%) over untreated control plots was found in the Decis 2.5EC sprayed plots followed by Neem oil while the lowest percent reduction of shoot infestation (29.86%) and fruit infestation (29.43%) were recorded in case of Light trap + hand picking.  Neem oil and Decis 2.5EC were found very effective in managing E. vittella up to 7 days after each spraying. Agritaf 50SP, Pitraj oil, Mahogany oil, T. chilonis and trap crop were also found effective over untreated control plots although were significantly lower than Decis 2.5EC and Neem oil. Therefore, application of Decis 2.5EC and Neem oil were mostly effective and Light trap + hand picking was the least effective measures in controlling E. vittella.Int J Appl Sci Biotechnol, Vol 4(1): 74-78

scholarly journals Effect of Different Colored Polythene Mulches and Net House on Insect Incidence and Yield of Brinjal in Rampur, Chitwan

2021 ◽  
Vol 8 (2) ◽  
pp. 131-136
Author(s):  
Prakash Bharatee ◽  
Ankit Soti ◽  
Rajendra Regmi ◽  
Arjun Kumar Shrestha ◽  
Ananta Raj Devkota ◽  
...  
Keyword(s):  
Insect Pest ◽  
Winter Season ◽  
Residual Effect ◽  
Emamectin Benzoate ◽  
Marketable Yield ◽  
Minimum Residual ◽  
Fruit Borer ◽  
Pest Incidence ◽  
Different Color ◽  
And Control

Field experiment was conducted in single factor randomized complete block designed to evaluate effect of different color polythene mulch and net house on insect pest incidence of brinjal in chitwan, nepal during october 2016 to may 2017. Five different treatment were selected with four replications, included net house with black polythene mulch, black polythene mulch only, reflective polythene mulch only and black polythene mulch with emamectin benzoate 5%sg spray and control (no mulch+ no net + no pesticide spray)  . The result revealed that the net house totally restricts the brinjal shoot and fruit borer whereas black polythene mulch with emamectin benzoate spray plot reduced brinjal shoot and fruit borer larvae upto 70.58%. Total marketable yield was found highest in the black polythene mulch with emamectin benzoate spray plot (49.17 mt /ha) followed by black polythene mulch only (38.59 mt/ha) and lowest in control plot (28.53 mt/ha). Damaged fruit percentage by brinjal fruit and shoot borer was highest in the control (35.68%) followed by black polythene mulch (28.10%), reflective polythene mulch (19.02%) and lowest in net house with black polythene mulch (0%). The damaged weight inside the net house with black polythene mulch and black mulch with pesticide were significantly different whereas the damaged weight in other treatments similar which proved that there was no effect of mulch on brinjal shoot and fruit borer. The B:C ratio was the highest (3.34:1) in the black polythene mulch with emamectin benzoate spray plot while the lowest in net with black polythene mulch (1.68:1). Although the B:C ratio was lower in the net with black polythene mulch due to the low yield in the winter season. Creation of suitable soil environment by black polythene mulch and being biologically originated, having minimum residual effect and short half-life of emamectin benzoate, black polythene mulch with emamectin benzoate can be used for the eco-friendly management of brinjal shoot and fruit borer.

scholarly journals Trichogramma chilonis as Parasitoid: An Eco-friendly Approach Against Tomato Fruit Borer, Helicoverpa armigera

2020 ◽  
Vol 12 (2) ◽  
pp. 167
Author(s):  
S. S. Abbas ◽  
M. F. Shahzad ◽  
Jamshaid Iqbal ◽  
Ayat Ullah ◽  
Asma Batool ◽  
...  
Keyword(s):  
Helicoverpa Armigera ◽  
Biological Control Agent ◽  
Tomato Fruit ◽  
Maximum Yield ◽  
Cost Benefit ◽  
Pigeon Pea ◽  
Emamectin Benzoate ◽  
Trichogramma Chilonis ◽  
Helicoverpa Armígera ◽  
Fruit Borer

Helicoverpa armigera (Hübner) is a major pest of several crops, e.g., Tomato, cotton, pigeon pea, and chickpea suffered by this insect in various parts of the worldwide. Trichocards as parasitoids regarding the different release levels of Trichogramma chilonis were used to evaluate the effectiveness against tomato fruit borer, Helicoverpa armigera as well as five insecticides with new chemistries were used to find out the comparative bio efficacy, which were relatively safer to human and environment, i.e., Capital plus (Beta-Cyfluthrin + Triazophos, 41.7% EC) 500 ml/Acre, Commando (Acephate, 97% DF) 62 g, Border (Profenofos + Lambda – Cyhalothrin, 61.5% EC) 500 ml/Acre, Polytrin C (Cypermethrin + Profenofos, 440 EC) 500 ml/Acre, Profit (Emamectin Benzoate, 1.9% EC & 90% Tech.) 500 ml/Acre. We also compared the insecticides with trichocards. There were 3 treatments, T1 Profit (Emamectin Benzoate, 1.9% EC & 90% Tech.) 500 ml/Acre, T2 (16000) of biological control agent (egg Parasitoid) and T3 (control plot). 16000 eggs of the parasitoid Trichogram chilonis, released per hectare were most effective in controlling tomato fruit borer. Out of the five insecticides tested, Border proved to be the best one, followed by Profit and Capital Plus in reducing the percent infestation of tomato by tomato fruit borer. In the third experiment, Profit gave best result followed by the Trichograma. chilonis cards with 16000 eggs per hectare. Among the tested insecticides, treatments sprayed with Border gave maximum yield (6179.0 kg/ha), followed by Profit & Polytrin C. Cost benefit ratio shows that highest net return (46.45 BCR) was obtained with Trichograma chilonis cards released plots followed by Profit. Trichocards are suggested for the controlling of Helicoverpa armigera as best substitute for insecticides. The use of trichocards practice have very effective role to protect the soil moreover, this practice may have significant role to protect the soil and save the natural resources from insecticides pollution.

scholarly journals Morphological and Biochemical Responses Associated With Resistance to Earias Vittella Fab. (Lepidoptera: Noctuidae) In Okra Varieties

2021 ◽  
Vol 50 (4) ◽  
pp. 1059-1066
Author(s):  
Ram Kumar ◽  
PP Sing ◽  
Md Abbas Ahmad
Keyword(s):  
Host Plant ◽  
Correlation Study ◽  
Susceptible Variety ◽  
Earias Vittella ◽  
Biochemical Traits ◽  
Biochemical Responses ◽  
Fruit Borer ◽  
Negative Effect ◽  
Shoot Damage ◽  
Lepidoptera Noctuidae

Response of morphological and biochemical traits against okra shoot and fruit borer in different okra varieties were studied. Among the fifteen okra varieties under test Kashi Satdhari was the most superior variety as it showed lowest (2.60) per cent shoot damage followed by D-1-87-5 (3.62%) and Pusa A-4 (4.24%). On the contrary, in Pusa Sawani highest level of shoot infestation (16.23%) followed by SB-2 (13.74%) as against Kashi Pragati (check) 10.08 per cent were recorded. Further, okra variety Kashi Satdhari (7.87%) showed lowest fruit infestation and was considered as least susceptible variety which was at par with NO-136 (8.77%), D-1-87-5 (9.12%) and Kashi Leela (9.38%). Amongst all the okra varieties evaluated for their susceptibility to fruit infestation, Pusa Sawani and VRO-03 showed relatively higher fruit infestation i.e. 35.17 and 33.41 per cent, respectively and registered as the most inferior varieties against (26.12%) Kashi Pragati (check). The correlation study between fruit infestation and morphological factors implied that primary branching and trichome length adversely affect the borer infestation. Further, phenol and phosphorus availability in host plant also showed negative effect on shoot and fruit borer infestation. Bangladesh J. Bot. 50(4): 1059-1066, 2021 (December)

scholarly journals Efficacy of different management practices against tomato fruit borer, helicoverpa armigera hubner

2019 ◽  
Vol 44 (2) ◽  
pp. 339-353
Author(s):  
MM Kamal ◽  
S Das ◽  
MH Sabit ◽  
D Das
Keyword(s):  
Management Practices ◽  
Block Design ◽  
Tomato Fruit ◽  
Total Yield ◽  
Cost Ratio ◽  
Emamectin Benzoate ◽  
Marketable Yield ◽  
Brown Sugar ◽  
Fruit Borer ◽  
Treated Plot

The study was conducted to evaluate the efficacy of different management practices to control tomato fruit borer (TFB) under field condition. The field experiment was carried out with eight treatments, namely Neem oil, Mahogany oil, Fish and Fermented Gur (brown sugar), Netting, Chlorpyriphos, Emamectin Benzoate and Cartap along with untreated control in Randomized Complete Block Design (RCBD) and each treatment was replicated thrice. The study was under taken during the period from 25 October, 2017 to 06 April 2018. Data were collected on number and weight of total fruits plot-1, number and weight of total healthy fruits plot-1, number and weight of total infested fruits plot-1, fruits infestation (%) in number and weight, infestation reduction over control for number and weight, number of holes, and larvae plot-1, total yield plot-1 and marketable yield plot-1. Among the different management practices, netting provided the highest infestation reduction over control. The percent fruit infestation reduction over control (number basis) was the highest in Netting treated plot resulting 61.87%, 73.27%, 84.68% and 92.70% at four different harvests, respectively. The percent fruit infestation reduction over control (weight basis) was the highest with the same treatment resulting 61.38%, 74.26%, 88.41% and 91.71% at four different harvests, respectively. The number of holes plot-1 was also the lowest in Netting treated plot resulting 5.00, 8.00, 15.33 and 8.67 at four different harvests, respectively. The number of larvae plot-1 was the lowest with the same treatment resulting 2.00, 2.33, 3.67 and 3.00 at four different harvests, respectively. The maximum marketable yield (33.95 t ha-1) was achieved in the Emamectin Benzoate treated plot with the highest (1.46) benefit cost ratio. Bangladesh J. Agril. Res. 44(2): 339-353, June 2019

scholarly journals Bio-efficacy of newer insecticides against okra shoot and fruit borer, Earias vittella fabricius

2021 ◽  
Vol 9 (1) ◽  
pp. 3220-3223
Author(s):  
PK Akolkar ◽  
BV Deore ◽  
CS Patil ◽  
YS Saindane
Keyword(s):  
Earias Vittella ◽  
Fruit Borer
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