scholarly journals Field Efficacy of Selected Insecticides and Neem Products against Shoot and Fruit Borer [Earias vittella (Fabricius)] on Okra [Abelmoschus esculentus (L.) Moench]

2017 ◽  
Vol 6 (8) ◽  
pp. 122-128
Author(s):  
K.A. Rakshith ◽  
Ashwani Kumar
Keyword(s):  
Abelmoschus Esculentus ◽  
Earias Vittella ◽  
Field Efficacy ◽  
Fruit Borer ◽  
Neem Products

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 Bio-efficacy of bifenthrin 8 SC against shoot and fruit borer and red spidermite of okra, Abelmoschus esculentus (L.) Moench

2017 ◽  
Vol 9 (1) ◽  
pp. 344-350
Author(s):  
Kusal Roy ◽  
Arun Rathod ◽  
M. Soniya Devi
Keyword(s):  
Spider Mite ◽  
West Bengal ◽  
Foliar Application ◽  
Abelmoschus Esculentus ◽  
Effective Control ◽  
Earias Vittella ◽  
Central Research ◽  
Red Spider Mite ◽  
Fruit Borer ◽  
Selection Of

A field study was conducted to evaluate the relative bio-efficacy of bifenthrin 8 SC @60g, 80g, 100g,120g, 140g a.i./ha against shoot and fruit borer and red spider mite of okra, Abelmoschus esculentus (L.) Moench cv. OH -152 at the Central Research Farm of BCKV, Nadia, West Bengal, for two consecutive seasons. Cypermethrin10 EC @70g a.i./ha and dicofol 18.5 EC @500g a.i./ha were used as standard treated check in the experiment. Population of beneficial insects like spider, predatory mites and Braconid parasitoid were also recorded during the time of observation on pests’ infestation. Among treatments, bifenthrin 8 SC @ 100 to 140g a.i./ha was found significantly(p≤0.05) superior over treated check cypermethrin 10 EC @ 70g a.i./ha and dicofol 18.5 EC @ 500g a.i./ha tobring down Earias vittella and red spider mite (Tetranychus urticae) population, respectively, on okra. Bifenthrin 8SC @ 140g a.i./ha recorded maximum fruit yield (82.3 q/ha during kharif 2012 and 53.1q/ha during rabi 2012-13) ofokra. Also, foliar application of bifenthrin 8 SC did not reveal any significant (p≤0.05) adverse effect on population of spider, predatory mite and Braconid parasitoid in okra crop ecosystem. These findings will facilitate the selection of bifenthrin 8 SC as an effective acaro-insecticides for effective control of shoot and fruit borer and red spider mite of okra.

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 Efficacy of Synthetic Pesticides Against Thrips, Thrips tabaci Lindeman (Thysanoptera: Thripidae) on Okra Abelmoschus esculentus (L.) Moench

2021 ◽  
Vol 13 (9) ◽  
pp. 148
Author(s):  
Hira Mannan ◽  
Qurban Ali Nahiyoon ◽  
Jilian Li
Keyword(s):  
Insect Pests ◽  
Thrips Tabaci ◽  
Abelmoschus Esculentus ◽  
Vegetable Crops ◽  
Vegetable Crop ◽  
Agronomic Crops ◽  
Wide Range ◽  
Field Efficacy ◽  
Synthetic Pesticides ◽  
Pre Treatment

Okra (Abelmoschus esculentus L.) is an essential vegetable crop with good nutritional significance. Insect pests are the major threat for poor production of the okra crop. Thrips of vegetable crops are known to be serious pests on a wide range of fruit, vegetable, flower, and agronomic crops. The present field study was carried out to know the efficacy of different insecticides (acetamiprid 19% weightable water (ww), lambda 25% ww, colarphipare 32% ww, lambda 2.5% ww and abamectin 1.3% ww) against Thrips, Thrips tabaci (Lindeman) on okra crop during the year 2019, and observations against T. tabaci (Lindeman) were recorded after 24 hrs, 48 hrs, 72 hrs and 07 days of each spray in all the treatments. The pre-treatment count of thrips on okra was non-significant (P > 0.05); while the evaluated efficacy of different insecticides against thrips was significant (P < 0.01). It was noted that all the insecticides showed their highest efficacy after 7 days of spray and acetamiprid 19% weightable water (ww) was more efficient to combat the T. tabaci as compared to other pesticides that produced field efficacy of 73.92 and 74.91% against thrips after 7 days of 1st and 2nd spray respectively. Abamectin, 1.3% ww, was reasonably successful, yielding 53.81 and 56.66% field efficacy against T. tabaci (Lindeman) after 7 days of first and second spray. Also, moderately effective was colarphipare 32% ww, which developed field effectiveness of 56.41 and 61.49% against T. tabaci (Lindeman) after 7 days of first and second spray, respectively.

scholarly journals Field efficacy of neem (Azadirachta indica A. Juss) for managing soil arthropods and Cercospora leaf spots damage for increased yield in peanut

2013 ◽  
Vol 49 (No. 2) ◽  
pp. 65-72 ◽  
Author(s):  
M. Abudulai ◽  
A.B. Salifu ◽  
D. Opare-Atakora ◽  
M. Haruna ◽  
I.I.Y. Baba ◽  
...  
Keyword(s):  
Azadirachta Indica ◽  
Leaf Spot ◽  
Untreated Control ◽  
Water Extract ◽  
Soil Arthropods ◽  
Pod Yield ◽  
Soil Drench ◽  
Leaf Spots ◽  
Field Efficacy ◽  
Neem Products

Field efficacy of neem (Azadirachta indica A. Juss) for managing soil arthropods and Cercospora leaf spots damage to peanut was studied in Ghana from 2008 to 2010. Treatments consisted of neem kernel water extract (NKWE) and neem kernel powder (NKP) applied separately as soil drench at the rates of 10.5 and 21.0 kg/ha at either planting or pegging. Untreated control and chlorpyrifos treatment at pegging were included as checks. Results showed generally that the neem products at the concentrations tested were efficacious and comparable to chlorpyrifos in lowering populations of soil arthropods and severity of leaf spot diseases, leaf defoliation, and scarified and bored pod damage, resulting in increased pod yield in 2008 and 2009.

Field efficacy of flubendiamide 480sc against brinjal shoot and fruit borer (Leucinodes orbonalis)

2018 ◽  
Vol 80 (2) ◽  
pp. 432
Author(s):  
Sandip Patra ◽  
S. Sarkar ◽  
S. K. F. Alam ◽  
B. C. Das ◽  
P. P. Dhar ◽  
...  
Keyword(s):  
Leucinodes Orbonalis ◽  
Field Efficacy ◽  
Fruit Borer
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