Management of Bemisia tabaci (Hemiptera: Aleyrodidae) through plant based derivatives on Abelmoschus esculentus under field conditions in District Mardan, Khyber PakhtunKhwa, Pakistan

2019 ◽  
Vol 14 (01) ◽  
pp. 293-299
Keyword(s):  
Bemisia Tabaci ◽  
Field Conditions ◽  
Abelmoschus Esculentus ◽  
Khyber Pakhtunkhwa

Evaluation of bioefficacy potential of entomopathogenic fungi against the whitefly (Bemisia tabaci Genn.) on cotton under polyhouse and field conditions

2021 ◽  
pp. 107618
Author(s):  
Satish Kumar Sain ◽  
Dilip Monga ◽  
Neelkanth S. Hiremani ◽  
Dipak T. Nagrale ◽  
Sandhya Kranthi ◽  
...  
Keyword(s):  
Bemisia Tabaci ◽  
Entomopathogenic Fungi ◽  
Field Conditions

scholarly journals EVALUATION OF SELECTED INSECTICIDES AGAINST WHITEFLY (Bemisia tabaci) ON BRINJAL CROPS AND THEIR EFFECT ON NATURAL ENEMIES

2017 ◽  
Vol 7 (4) ◽  
pp. 1151-1161 ◽  
Author(s):  
Mohd Rasdi Zaini
Keyword(s):  
Field Study ◽  
Bemisia Tabaci ◽  
Natural Enemies ◽  
Chemical Control ◽  
Post Treatment ◽  
Field Conditions ◽  
Pre Treatment ◽  
Treatment Observation ◽  
Control Water

A field study was carried out for two cropping periods in the first season in year 2014 and the second season in 2015. This study was carried out at share farm, Agrotechnology Plantation UiTM Melaka, Campus Jasin to examine the efficacy of selected insecticides against whitefly (Bemisia tabaci) on brinjal crops and the effect on natural enemies (Spider) under field conditions. Five treatments with four replications were applied. The treatments were T0= Control (water), T1= Imidacloprid (Confidor), T2= Acetamiprid (Mospilan), T3= Dinotefuran (Oshin) and T4= Cyantraniliprole (Benevia). Pre-treatment and post-treatment observation were recorded which is one day before application and 1, 3, 7 and 14 days after application of insecticides. A total of two applications of treatments were done. The results revealed that Imidacloprid was recorded as the most effective and the highest reduction of whiteflies during the first season with 96.73%, followed by Acetamiprid (92.44%), Cyantraniliprole (82.65%) and Dinotefuran (80.74%) while during the second season, Imidacloprid also was recorded as the highest reduction with 79.99%, followed by Acetamiprid (76.34%), Cyantraniliprole (54.09%) and Dinotefuran (36.87%). Overall, chemical control of Imidacloprid was the most effective against whiteflies populations in brinjal particularly in the first season as compared to second season. The effect of these selected insecticides on natural enemies (Spider) revealed that chemical control of Imidacloprid gave the highest reduction of spider with 65.69%), followed by Cyantraniliprole (64.47%), Acetamiprid (41.44%) and Dinotefuran (15.45%). Imidacloprid and Cyantraniliprole were classified as moderately harmful to spider while Acetamiprid and Dinotefuran were classified as harmless or slightly harmful.

Resistance Assessment of Different Cultivars of Okra (Abelmoschus esculentus) Against Whitefly (Bemisia tabaci)

2020 ◽  
Vol 72 (4) ◽  
pp. 361-369
Author(s):  
Ahmad Nawaz ◽  
Habib Ali ◽  
Muhammad Dildar Gogi ◽  
Sajid Fiaz ◽  
Muhammad Arfan ◽  
...  
Keyword(s):  
Bemisia Tabaci ◽  
Abelmoschus Esculentus ◽  
Resistance Assessment

scholarly journals Differential Efficacies of Nomuraea Rileyi and Isaria Fumosorosea on Some Serious Pests and the Pests’ Efficient Predator Prevailing in Tomato Fields in Egypt

2013 ◽  
Vol 53 (2) ◽  
pp. 103-109 ◽  
Author(s):  
Mamdouh Maher Matter ◽  
Magda Mahmoud Sabbour
Keyword(s):  
Bemisia Tabaci ◽  
Myzus Persicae ◽  
Microbial Control ◽  
Field Conditions ◽  
Lethal Concentration ◽  
Nomuraea Rileyi ◽  
Isaria Fumosorosea ◽  
Tomato Yield ◽  
Coccinella Undecimpunctata ◽  
Efficient Predator

Abstract The efficiency of the two microbial control agents Nomuraea rileyi and Isaria fumosorosea, were evaluated against Bemisia tabaci and Myzus persicae pests in tomato cultivations The safety levels of the agents, to the predator Coccinella undecimpunctata, were also studied under laboratory and field conditions. Results showed that under laboratory conditions, LC50 values for N. rileyi and I. fumosorosea were 103.7x104 and 139.4x104 spores/ml against B. tabaci, respectively, while the corresponding values for M. persicae were 89.1x104 and 149.8x104 spores/ml, respectively. Under the field conditions, the percentages of infested plants with B. tabaci and M. persicae were significantly decreased after treatments with both fungi as compared with the corresponding controls. At the El-Esraa farm (Nobaria region), the weights of the tomato yield were 2,417 and 2,911 kg/feddan when I. fumosorosea and N. rileyi were applied respectively, as compared with 2,010 kg/feddan in the corresponding controls. The corresponding yields in El-Kassaseen were 2,699 and 2,999 kg/feddan, respectively, as compared to 1,990 kg/feddan in the control. The present study showed that C. undecimpunctata exhibit relatively high and reasonable resistance to N. rileyi and I. fumosorosea at the highest lethal concentration (1x108 spores/ml) for both tested preys.

scholarly journals Laboratory apparatus and techniques for the rearing and insecticidal treatment of whitefly Bemisia tabaci (Homoptera: Aleyrodidae) under simulated field conditions

1990 ◽  
Vol 80 (2) ◽  
pp. 209-216 ◽  
Author(s):  
Mark Rowland ◽  
Barry Pye ◽  
Mary Stribley ◽  
Barbara Hackett ◽  
Ian Denholm ◽  
...  
Keyword(s):  
Bemisia Tabaci ◽  
Large Population ◽  
Field Conditions ◽  
Laboratory Apparatus ◽  
Testing Strategies ◽  
Application Rates ◽  
Insecticidal Treatment ◽  
Simulated Field ◽  
Selection Of ◽  
Selection Of Resistance

AbstractLaboratory apparatus and techniques are described for the rearing and insecticidal treatment of whitefly, Bemisia tabaci Gennadius, under simulated field conditions. Insects were reared on cotton plants inside large population cages and treated from an overhead sprayer. The effects of these treatments were assessed accurately, without interfering with insects or plants, by monitoring adult numbers with an endoscope over one or more generations. Examples of single-generation and multiple-generation tests with cypermethrin are described. The apparatus is suitable for testing strategies for delaying the selection of resistance (e.g. using insecticides applied singly, alternately, or in mixture, at various application rates and frequencies), for controlling populations already resistant to insecticides, and for integrated pest management using chemical and biological control agents together.

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