scholarly journals Induction of defense mechanisms from filtrates of saprophytic fungi against early blight disease in tomato

2016 ◽  
Vol 10 (44) ◽  
pp. 1849-1859 ◽  
Author(s):  
Jussiê da Silva Solino Antônio ◽  
Regina Freitas Schwan-Estrada Kátia ◽  
Santos Batista Oliveira Juliana ◽  
dos Santos Rodrigues Alencar Marianna ◽  
Martins Ribeiro Lilianne
Keyword(s):  
Defense Mechanisms ◽  
Early Blight ◽  
Saprophytic Fungi ◽  
Blight Disease

scholarly journals Evaluation of various plant extracts against the early blight disease of tomato plants under greenhouse and field conditions

2012 ◽  
Vol 48 (No. 2) ◽  
pp. 74-79 ◽  
Author(s):  
S.M.A. Nashwa ◽  
K.A.M. Abo-Elyousr
Keyword(s):  
Disease Severity ◽  
Plant Extracts ◽  
Mycelial Growth ◽  
Early Blight ◽  
Field Conditions ◽  
Nerium Oleander ◽  
Tomato Plants ◽  
Infected Control ◽  
Blight Disease

The antimicrobial activity of six plant extracts from Ocimum basilicum (Sweat Basil), Azadirachta indica (Neem), Eucalyptus chamadulonsis (Eucalyptus), Datura stramonium (Jimsonweed), Nerium oleander (Oleander), and Allium sativum (Garlic) was tested for controlling Alternaria solani in vitro and in vivo. In in vitro study the leaf extracts of D. stramonium, A. indica, and A. sativum at 5% concentration caused the highest reduction of mycelial growth of A. solani (44.4, 43.3 and 42.2%, respectively), while O. basilicum at 1% and 5% concentration and N. oleander at 5% concentration caused the lowest inhibition of mycelial growth of the pathogen. In greenhouse experiments the highest reduction of disease severity was achieved by the extracts of A. sativum at 5% concentration and D. stramonium at 1% and 5% concentration. The greatest reduction of disease severity was achieved by A. sativum at 5% concentration and the smallest reduction was obtained when tomato plants were treated with O. basilicum at 1% and 5% concentration (46.1 and 45.2 %, respectively). D. stramonium and A. sativum at 5% concentration increased the fruit yield by 76.2% and 66.7% compared to the infected control. All treatments with plant extracts significantly reduced the early blight disease as well as increased the yield of tomato compared to the infected control under field conditions.

scholarly journals Eco-Friendly and Integrated Approaches for Management of Early Blight Disease in Tomato

2017 ◽  
Vol 6 (10) ◽  
pp. 3052-3057 ◽  
Author(s):  
A. Dhal ◽  
S.K. Beura ◽  
S.K. Dash ◽  
L. Tripathy ◽  
S.K. Swain ◽  
...  
Keyword(s):  
Early Blight ◽  
Integrated Approaches ◽  
Blight Disease

Genetic defense analysis of tomatoes in response to early blight disease, Alternaria alternata

2019 ◽  
Vol 142 ◽  
pp. 500-509 ◽  
Author(s):  
Giti Alizadeh Moghaddam ◽  
Zahra Rezayatmand ◽  
Mehdi Nasr Esfahani ◽  
Mahdi Khozaei
Keyword(s):  
Alternaria Alternata ◽  
Early Blight ◽  
Blight Disease

Evaluation of tomato genotypes for early blight disease resistance caused by Alternaria solani in Pakistan

2019 ◽  
Vol 101 (4) ◽  
pp. 1159-1170
Author(s):  
Khalid Pervaiz Akhtar ◽  
Najeeb Ullah ◽  
Muhammad Yussouf Saleem ◽  
Qumer Iqbal ◽  
Muhammad Asghar ◽  
...  
Keyword(s):  
Disease Resistance ◽  
Early Blight ◽  
Alternaria Solani ◽  
Blight Disease ◽  
Tomato Genotypes

scholarly journals Effect of Commercial Adjuvants on Vegetable Crop Fungicide Coverage, Absorption, and Efficacy

Plant Disease ◽  
2003 ◽  
Vol 87 (5) ◽  
pp. 591-597 ◽  
Author(s):  
David H. Gent ◽  
Howard F. Schwartz ◽  
Scott J. Nissen
Keyword(s):  
Early Blight ◽  
Seed Oil ◽  
Field Studies ◽  
Bean Rust ◽  
Vegetable Crop ◽  
Dry Bean ◽  
Progress Curve ◽  
Blight Disease ◽  
Foliar Fungicide ◽  
Field Plots

The addition of an appropriate adjuvant with foliar fungicide can significantly improve coverage, absorption, and efficacy. Laboratory and field studies evaluated coverage, absorption, and efficacy of commercial adjuvants with diverse chemistries on multiple host-pathogen systems. Organosilicone-based adjuvants improved coverage by 26 to 38% compared with a latex spreader-sticker and water. Significant crop by coverage interaction effects were also detected. The organosilicone/methylated seed oil-based adjuvant, Aero Dyne-Amic, significantly improved total [14C]azoxystrobin absorption on onion and potato by 30 and 21%, respectively, compared with water. The spreader-sticker, Bond, improved [14C]azoxystrobin absorption on onion and dry bean by 41 and 39%, respectively, compared with water. In experimental field plots, dry bean rust incidence was reduced by 52% when Kinetic or Latron AG-98 was added to maneb compared with maneb alone. The area under the potato early blight disease progress curve was reduced 29, 24, or 21% when Kinetic, Bond, or Latron AG-98 was added to maneb, respectively, compared with maneb applications alone.

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