scholarly journals POSSIBILITIES OF COMPLEX CONTROL OF PATHOGENS AND PEST ON TOMATO CROPS UNDER HIGH PLASTIC TUNNELS

2020 ◽  
Vol 1 (1) ◽  
pp. 31-36
Author(s):  
Gabriela Şovărel ◽  
Simona-Ştefania Hogea ◽  
Ana-Emilia Cenuşă ◽  
Marcel Costache
Keyword(s):  
Helicoverpa Armigera ◽  
Untreated Control ◽  
Alternaria Solani ◽  
Tuta Absoluta ◽  
Leaf Miner ◽  
Complex Control ◽  
Helicoverpa Armígera ◽  
Fulvia Fulva ◽  
Control Variant ◽  
High Plastic

The experiment was carried out in 2020, under high plastic tunnels conditions, using the tomato hybrid Prekos F1 and aimed to evaluate the efficacy of different combinations of fungicides with insecticides for complex control of pathogens Alternaria solani (early blight), Fulvia fulva (leaf mold) and pests Tuta absoluta (tomato leaf miner) and Helicoverpa armigera (cotton bollworm). The experimental variants were: 1. Cabrio Top 0.2% + Coragen 0.0175%; 2. Cabrio Top 0.2% + Voliam Targo 0.08%; 3. Dagonis 0.1% + Coragen 0.0175%; 4. Dagonis 0.1% + Voliam Targo 0.08%; 5. Cidely Top 0.1% + Coragen 0.0175%; 6. Cidely Top 0.1% + Voliam Targo 0.08%; 7. Ortiva Top 0.1% + Coragen 0.0175%; 8. Ortiva Top 0.1% + Voliam Targo 0.08%; 9. Untreated control. Six foliar treatments were applied at 10- days intervals. The efficacy of these combinations of fungicides with insecticides was assessed according to the degree of attack (%) for Alternaria solani, Fulvia fulva and Tuta absoluta or according to the frequency of the attacked fruits (%) for Helicoverpa armigera and was between 85.0% and 90.7%. The highest yields were registered in variants 1 (Cabrio Top 0.2% + Coragen 0.0175% - 5,535 kg/m2), 3 (Dagonis 0.1% + Coragen 0.0175% - 5,440 kg/m2) and 2 (Cabrio Top 0.2% + Voliam Targo 0.08% - 5,362 kg/m2) as compared to 4,490 kg/m2 in the untreated control variant. The differences of yield, obtained in addition to the untreated control variant, were very significant in all cases.

Laboratory evaluation of certain bio-pesticides against the larvae of Helicoverpa armigera Hubner

2016 ◽  
Author(s):  
P. K. Ojha ◽  
R. Kumari ◽  
N. K. Pandey
Keyword(s):  
Bacillus Thuringiensis ◽  
Helicoverpa Armigera ◽  
Untreated Control ◽  
Nuclear Polyhedrosis Virus ◽  
Larval Mortality ◽  
Laboratory Evaluation ◽  
Half Dose ◽  
Helicoverpa Armígera ◽  
Nuclear Polyhedrosis ◽  
Test Insect

Applications of Helicoverpa armigera Nuclear Polyhedrosis Virus (HaNPV), Quinalphos, Bacillus thuringiensis kurstaki (Btk) and Beauveria bassiana (B.b.) as full doses gave hundred percent larval mortality to the test insect, 2nd instar larvae of Helicoverpa armigera. Treatment combinations containing half doses of HaNPV + Btk, HaNPV + B.b., HaNPV + Quinalphos, Btk + B.b., Btk + Quinalphos, B.b.+ Quinalphos, also gave cent percent larval death. Azadirachtin as half dose of application was found to be least effective (50%). However, all the treatment combinations were found effective over the untreated control.

scholarly journals Performance of different management practices on tomato fruit borer (Helicoverpa armigera Hubner) abundance and infestation

2017 ◽  
Vol 14 (2) ◽  
pp. 161-166 ◽  
Author(s):  
M Dey ◽  
S Das ◽  
MM Kamal ◽  
R Sarkar
Keyword(s):  
Helicoverpa Armigera ◽  
Untreated Control ◽  
Management Practices ◽  
Tomato Fruit ◽  
Research Work ◽  
Research Field ◽  
Helicoverpa Armígera ◽  
Fruit Borer ◽  
Swietenia Mahagoni ◽  
Helicoverpa Armigera Hubner

A research work based on eco-friendly management practices was undertaken at Agro-technology research field, Khulna University containing five treatments viz. Neem (Azadirachta indicia A. Juss.), Netting, Pheromone, Mahogoni (Swietenia mahagoni L.) and untreated control in RCBD with four replications aiming to evaluate their efficacy against tomato fruit borer, Helicoverpa armigera Hubner infestation. Data were taken on tomato fruit infestation (%), number of holes and number of larvae per infested fruit. All eco-friendly management practices had remarkable action against the tomato fruit borer, of which Netting claimed the highest position to protect tomato fruit borer infestation compared to other management practices whereas the highest insect infestation took place in untreated control. So, to infer, Netting is very promising and efficient tool in controlling tomato fruit borer for safe and quality tomato production.J. Bangladesh Agril. Univ. 14(2): 161-166, December 2016

scholarly journals ACTIVE INGREDIENTS COMBINATIONS FOR PATHOGENS AND PESTS CONTROL ON EGGPLANT CROPS IN THE FIELD

2020 ◽  
Vol 1 (1) ◽  
pp. 37-42
Author(s):  
Mihaela Alina Buzatu ◽  
Gicuța Sbîrciog ◽  
Stelica Cristea ◽  
Costache Marcel
Keyword(s):  
Untreated Control ◽  
Field Conditions ◽  
Active Ingredients ◽  
Complex Control ◽  
Control Variant ◽  
Active Substances

The present study aims to identify combinations of active substances for the complex control of pathogens and pests on eggplant crops in the field. The experiments were conducted between 2016 - 2017, in field conditions, using the variety of eggplant Luiza and the following experimental variants: V 1 - Acrobat MZ 69 WG 0.2% + Mospilan 20 SG 0.04%; V 2 - Acrobat MZ 69 WG 0.2% + Vertimec 1.8 EC 0.1%; V 3 - Acrobat MZ 69 WG 0.2% + Laser 240 SC 0.05%; V 4 - Melody Compact 49 WG 0.2% + Mospilan 20 SG 0.04%; V 5 - Melody Compact 49 WG 0.2% + Vertimec 1.8 EC 0.1%; V 6 - Melody Compact 49 WG 0.2% + Laser 240 SC 0.05%; V 7 - Ortiva Top 0.1% + Mospilan 20 SG 0.04%; V 8 - Ortiva Top 0.1% + Vertimec 1.8 EC 0.1%; V 9 - Ortiva Top 0.1% + Laser 240 SC 0.05%; V 10 - untreated control. The average efficacy of the treatment variants experienced in 2016 and 2017 varied between 83.2% (V4) and 85.0% (V8) depending on the combinations of products pathogens and pests control. Analyzing the yields obtained (34.6 -44.0 t / ha in 2016 and 33.5 - 43.1 t / ha in 2017), compared to the untreated control variant (30.4 t / ha in 2016 and 31.1 t / ha in 2017), it is found that the yield differences obtained in addition to the untreated control variants were in all cases, very significant.

Bioefficacy of novel insecticides against pod borer,(Helicoverpa armigera Hubner) in pigeonpea

2017 ◽  
Author(s):  
Hemant Swami ◽  
O.P. Ameta ◽  
Lekha .
Keyword(s):  
Seed Yield ◽  
Helicoverpa Armigera ◽  
Untreated Control ◽  
Larval Population ◽  
Pod Borer ◽  
Helicoverpa Armígera ◽  
Treated Plot ◽  
Helicoverpa Armigera Hubner

The bio efficacy of some new insecticides and their combinations against pod borer infesting pigeonpea was evaluated at Agronomy farm, RCA, Udaipur using four dosages of Chlorantraniliprole 9.6% + Lambdacyhalothrin 4.6% @ 150, 200, 250 and 300 ml/ha along with Lambdacyhalothrin 4.9 % CS @ 500 ml / ha, Chlorantraniliprole 18.5% SC @ 162 ml / ha, Profenophos 50 EC @ 1500 ml / ha and Indoxacarb 14.5 SC @ 517 ml / ha. Among the various insecticides, lowest population of larvae with a mean of 3.65, 4.16, 2.25 and 2.16 larvae/10 plants was recorded in Chlorantraniliprole 9.6% + Lambdacyhalothrin 4.6% at 300 ml/ha as against 35.10, 37.0, 39.55 and 38.47 larvae/10 plants in untreated control during 2011 at 7 and 14 days after first and second spray, respectively which was found at par with Chlorantraniliprole 9.6% + Lambdacyhalothrin 4.6% at 200, and 250 ml/ha. Similar results were also recorded during 2012 with larval population in the range of 2.10 –7.16/ 10 plants in Chlorantraniliprole 9.6% + Lambdacyhalothrin 4.6% treated plot @ 200,250 and 300 ml/ha. Chlorantraniliprole 9.6% + Lambdacyhalothrin 4.6% at 300ml/ha caused highest reduction in pod borer larvae during both the years with a mean reduction of 91.86 and 89.14 per cent during kharif 2011 and 2012, respectively. The seed yield among different treatments ranged from 6.75 to 9.50 and 7.87 to 10.78q/ha against 5.35and 6.45q/ha in untreated control during kharif 2011 and 2012, respectively. The highest seed yield of 9.50 and 10.78 q/ha/ha was recorded in case of spray of Chlorantraniliprole 9.6% + Lambdacyhalothrin 4.6% at 300 ml/ha during kharif 2011 and 2012, respectively.

Novel Insecticides for the Management of Pod Borer Complex in Pigeonpea Crop

2020 ◽  
Author(s):  
G. K. Taggar ◽  
Ravinder K. Singh ◽  
H. S. Randhawa ◽  
H. K. Cheema
Keyword(s):  
Grain Yield ◽  
Helicoverpa Armigera ◽  
Untreated Control ◽  
Maruca Vitrata ◽  
Pest Population ◽  
Net Returns ◽  
Pod Borer ◽  
Helicoverpa Armígera ◽  
Helicoverpa Armigera Hubner

The bioefficacy of novel insecticides against pod borer complex comprising Maruca vitrata (Fabricius) and Helicoverpa armigera (Hubner) in pigeonpea was evaluated in multi location research trials during kharif 2016 to 2018. The data on efficacy of different insecticides against pod borer complex averaged at all the locations revealed that the application of chlorantraniliprole 18.5 SC @ 150 ml ha-1 followed by flubendiamide 480 SC @ 125 ml ha-1 registered significantly the lowest pest population and cumulative pod damage. These treatments registered significantly highest grain yield along with highest net returns over untreated control, thus, indicating their superiority over rest of the treatments.

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