scholarly journals Antixenosis resistance in okra accessions against shoot and fruit borer Earias vittella (Fab.)

1970 ◽  
pp. 27-32
Author(s):  
Anitha. S, N. Karthika
Keyword(s):  
Free Choice ◽  
Oviposition Preference ◽  
Feeding Preference ◽  
Earias Vittella ◽  
Mechanisms Of Resistance ◽  
Fruit Length ◽  
Fruit Borer ◽  
Fruit Damage ◽  
Choice Feeding

The present study is to analyse the antixenosis mechanisms of resistance in ten okra accessions against Shoot and Fruit borer E. vittella. With regard to the free choice feeding preference, the accessions IC140880 and Trichi local were not preferred by any larvae even up to 8 h. The fruit damage of Coimbatore local by the larvae in 8 hours was recorded as lowest, in confined condition. The accession IC 282228 fruit was bored up to a length 9.1 cm by the larvae in 8 h. On studying the oviposition preference, the accessions IC140880 and Trichi local were least preferred by E. vittella adults. The length and breadth and number of trichomes of these accessions were recorded as maximum. It was observed that the fruit length of IC140880 were greater than other accessions whereas Trichi local recorded higher fruit width compared to other accessions. While assessing the Fruit angle to stem, Coimbatore local recorded a higher value followed by Trichi local, IC140880 and IC 218877. The incidence of shoot and fruit borer was high in IC282228.  In overall observation, weight and yield of the fruit is high in IC140880 followed by Trichi local.

scholarly journals INFLUENCE OF WEATHER FACTORS ON INCIDENCE OF SHOOT AND FRUIT BORER (Earias vittella Fabiricus) ON BHENDI

1970 ◽  
pp. 30-34
Author(s):  
K. ARCHUNAN, M. PAZHANISAMY, S. SATHYA
Keyword(s):  
Field Experiments ◽  
Maximum Temperature ◽  
Earias Vittella ◽  
Weather Factors ◽  
Kharif Season ◽  
Sunshine Hours ◽  
Fruit Borer ◽  
Rain Fall ◽  
Fruit Damage ◽  
Shoot Damage

The field experiments were carried out in the farmer field at C. Mutlur near Chidambaram during rabi and kharif 2017. The results of experiments revealed that the per cent shoot damage and fruit damage by E. vittella on bhendi  reached peak on 13th and 15th MSW in rabi season, whereas 43rd and 42nd MSW in kharif season. The per cent shoot damage and fruit damage by E. vittella were exerted significantly positively correlated with minimum (0.552 & 0.698) and maximum temperature (0.629 & 0.748), whereas rainfall positively correlated with per cent shoot and fruit damage but it was non significant (0.111 & 0.297), however relative humidity (-0.178 & -0.210) and sunshine hours were exerted negatively correlated with per cent shoot damage and fruit damage by E. vittella during rabi 2017. The kharif season 2017 indicated that per cent shoot damage and fruit damage of bhendi was positively non significant association with RH and rain fall, while negatively non significant correlation with minimum temperature (-0.43 & -0.309) and sunshine hours (-0.265 & -0.283) was recorded.

scholarly journals Appraisal of resistant genotypes against brinjal shoot and fruit borer (BSFB), Leucinodes orbonalis, Guenee

2018 ◽  
Vol 16 (2) ◽  
pp. 227-231
Author(s):  
Hafija Sultana ◽  
Md Aabdul Mannan ◽  
Md Mostofa Kamal ◽  
Khan Golam Quddus ◽  
Shimul Das
Keyword(s):  
Pot Experiment ◽  
Leucinodes Orbonalis ◽  
Fruit Borer ◽  
Three Stages ◽  
Fruit Damage ◽  
Shoot Damage ◽  
Resistant Genotypes

The main purpose of this study was to find out the best variety of brinjal having resistance to BSFB. A pot experiment was carried out at the germplasm centre, Agrotechnology Discipline, Khulna University, Khulna during February 2014 to August 2014. The experiment was laid out in CRD using thirteen varieties with five replications. The varieties were V1=BARI begun-1, V2=BARI begun-4, V3=BARI begun-5, V4=BARI begun-6, V5=BARI begun-7, V6=BARI begun-8, V7=BARI begun-9, V8=BARI begun-10, V9=Makra, V10=Muktokashi, V11=Lalita, V12=Hazra, V13=Chaga. Data were collected on total number of shoot, total number of infested shoot, percentage of shoot damage, percentage of shoot infestation reduction, numbers of larvae per infested shoot, total number of fruit, percentage of fruit damage, percentage of fruit infestation reduction, numbers of larvae per infested fruit. Results have shown that the minimum shoot infestation was found in BARI begun-6 (29.60%, 32.40%, 29.86% and 29.38%, respectively at four different stages of eggplant). Percent of fruit infestation was minimum in V4 (BARI begun-6) (25.16%, 27.42% and 25.40% at three stages respectively).J. Bangladesh Agril. Univ. 16(2): 227-231, August 2018

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.

Horn Flies and Stable Flies: Free-Choice Feeding of Methoprene Mineral Blocks to Cattle for Control13

1974 ◽  
Vol 67 (3) ◽  
pp. 384-386 ◽  
Author(s):  
R. L. Harris ◽  
W. F. Chamberlain ◽  
E. D. Frazar
Keyword(s):  
Free Choice ◽  
Stable Flies ◽  
Horn Flies ◽  
Choice Feeding

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

Effects of Experience on Subsequent Feeding or Oviposition Preference in Musca domestica (Diptera: Muscidae) and Chrysomya megacephala (Diptera: Calliphoridae)

2009 ◽  
Vol 44 (3) ◽  
pp. 187-192
Author(s):  
Zheng-Yan Wang ◽  
Jian-Chu Mo
Keyword(s):  
Musca Domestica ◽  
Wheat Bran ◽  
Oviposition Preference ◽  
Feeding Preference ◽  
Larval Feeding ◽  
Chrysomya Megacephala ◽  
Host Selection Behavior ◽  
Chemical Legacy ◽  
Feeding Regimen ◽  
Gravid Females

Objectives of this research were to evaluate the effect of larval experience on feeding preference of larvae and the effect of larval and pupal experience on oviposition preference of females in Musca domestica L. and Chrysomya megacephala F. Dietary experience from hatch to test significantly influenced feeding preference of the second-instar larvae in M. domestica (P < 0.01), but did not in C. megacephala. The larval dietary and pupal experience did not change the oviposition preference of C. megacephala, and experienced gravid females laid all of their eggs on pork muscle. Larval feeding regimen had no effect on oviposition preference of subsequent females in M. domestica. However, the pupal experience in M. domestica significantly influenced the oviposition preference of subsequent females, and M. domestica females from pupae matured on wheat bran laid significantly more eggs on wheat bran than those that matured on pork muscle, or filter paper whether pupae were washed or not (P < 0.01). These results demonstrated that host-selection behavior in M. domestica was shaped by preimaginal experience according to the chemical legacy hypothesis.

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