Selection and characterization of the inheritance of resistance ofSpodoptera frugiperda(Lepidoptera: Noctuidae) to chlorantraniliprole and cross‐resistance to other diamide insecticides

2019 ◽  
Vol 75 (10) ◽  
pp. 2682-2689 ◽  
Author(s):  
Anderson Bolzan ◽  
Fernando EO Padovez ◽  
Antonio RB Nascimento ◽  
Ingrid S Kaiser ◽  
Ewerton C Lira ◽  
...  
Keyword(s):  
Cross Resistance ◽  
Inheritance Of Resistance ◽  
Lepidoptera Noctuidae

Cross-resistance and Inheritance of Resistance to Emamectin Benzoate inSpodoptera exigua(Lepidoptera: Noctuidae)

2015 ◽  
Vol 108 (4) ◽  
pp. 2015-2020 ◽  
Author(s):  
Wunan Che ◽  
Jianlei Huang ◽  
Fang Guan ◽  
Yidong Wu ◽  
Yihua Yang
Keyword(s):  
Cross Resistance ◽  
Inheritance Of Resistance ◽  
Emamectin Benzoate ◽  
Lepidoptera Noctuidae

Characterization of the Δ11-palmitoyl-CoA-desaturase from Spodoptera littoralis (lepidoptera: noctuidae)

1992 ◽  
Vol 22 (2) ◽  
pp. 143-148 ◽  
Author(s):  
Ferran Rodriguez ◽  
David L. Hallahan ◽  
John A. Pickett ◽  
Francisco Camps
Keyword(s):  
Spodoptera Littoralis ◽  
Lepidoptera Noctuidae

scholarly journals Isolation and DNA Barcode Characterization of a PermanentTelenomus(Hymenoptera: Platygastridae) Population in Florida That Targets Fall Armyworm (Lepidoptera: Noctuidae)

2015 ◽  
Vol 108 (5) ◽  
pp. 729-735 ◽  
Author(s):  
Mirian M. Hay-Roe ◽  
Rodney N. Nagoshi ◽  
Robert L. Meagher ◽  
Myriam Arias De Lopez ◽  
Rogelio Trabanino
Keyword(s):  
Dna Barcode ◽  
Fall Armyworm ◽  
Lepidoptera Noctuidae

Sensitivity of C. fructicola and C. siamense of peach in China to multiple classes of fungicides and characterization of pyraclostrobin-resistant isolates

Plant Disease ◽  
2021 ◽  
Author(s):  
Hafiz Muhammad Usman ◽  
Qin Tan ◽  
Mohammad Mazharul Karim ◽  
Muhammad Adnan ◽  
Weixiao Yin ◽  
...  
Keyword(s):  
High Resistance ◽  
Mycelial Growth ◽  
Management Strategies ◽  
Cross Resistance ◽  
Qoi Fungicides ◽  
Quinone Outside Inhibitor ◽  
Dmi Fungicides ◽  
Colletotrichum Gloeosporioides Species Complex ◽  
Cyt B Gene

Anthracnose, mainly caused by Colletotrichum gloeosporioides species complex including C. fructicola and C. siamense, is a devastating disease of peach. The chemical control has been widely used for years and management failures have increased towards commonly used fungicides. Therefore, screening of sensitivity of Colletotrichum spp. to fungicides with different modes of action is needed to make proper management strategies for peach anthracnose. In this study, sensitivity of 80 isolates of C. fructicola and C. siamense was screened for pyraclostrobin, procymidone, prochloraz and fludioxonil based on mycelial growth inhibition at discriminatory doses. Results showed that C. fructicola and C. siamense isolates were highly resistant to procymidone and fludioxonil with 100% resistance frequencies to both fungicides, but sensitive to prochloraz, i.e., no resistant isolates were found. For pyraclostrobin, 74% of C. fructicola isolates showed high resistance and 26 % were low resistant, all of the C. siamense isolates were low resistant. No positive cross-resistance was observed between pyraclostrobin and azoxystrobin, even they are members of the same quinone outside inhibitor (QoI) fungicide group, and between pyraclostrobin and non-QoIs. Resistant isolates to QoI fungicides were evaluated for the fitness penalty. Results showed that no significant differences except for mycelial growth rates were detected between highly resistant and low-resistant isolates of C. fructicola. Molecular characterization of Cyt b gene revealed that the G143A point mutation was the determinant of the high resistance in C. fructicola. This study demonstrated the current resistance status of C. fructicola and C. siamense to different fungicides and their future perspectives. Demethylation inhibitor (DMI) fungicides are the best option among different chemicals to control peach anthracnose in China.

scholarly journals Biological and Molecular Characterization of the Postinvasion Immature Stages ofHelicoverpa armigera(Hübner) (Lepidoptera: Noctuidae)

2018 ◽  
Vol 101 (1) ◽  
pp. 25-32 ◽  
Author(s):  
Ivana Fernandes da Silva ◽  
Edson Luiz Lopes Baldin ◽  
Alexandre Specht ◽  
Daniel Ricardo Sosa-Gómez ◽  
Vânia Ferreira Roque-Specht ◽  
...  
Keyword(s):  
Molecular Characterization ◽  
Immature Stages ◽  
Lepidoptera Noctuidae

Virulence and genetic characterization of six baculovirus strains isolated from different populations of Spodoptera frugiperda (Lepidoptera: Noctuidae)

2022 ◽  
Vol 204 (1) ◽  
Author(s):  
Ingrid Zanella-Saenz ◽  
Elisabeth A. Herniou ◽  
Jorge E. Ibarra ◽  
Ilse Alejandra Huerta-Arredondo ◽  
Ma. Cristina Del Rincón-Castro
Keyword(s):  
Spodoptera Frugiperda ◽  
Genetic Characterization ◽  
Different Populations ◽  
Lepidoptera Noctuidae

Characterization of cross-resistance patterns in acetyl-CoA carboxylase inhibitor resistant wild oat (Avena fatua)

Weed Science ◽  
1997 ◽  
Vol 45 (6) ◽  
pp. 750-755 ◽  
Author(s):  
Luc Bourgeois ◽  
Norm C. Kenkel ◽  
Ian N. Morrison
Keyword(s):  
Cluster Analysis ◽  
Principal Component ◽  
Petri Dish ◽  
Cross Resistance ◽  
Wild Oat ◽  
Acetyl Coa Carboxylase ◽  
Acetyl Coa ◽  
Pairwise Correlation ◽  
Resistance Patterns

The purpose of this study was to determine cross-resistance patterns among wild oat lines resistant to acetyl-CoA carboxylase (ACCase) inhibitors and to determine which, if any, cross-resistant type was more common than another. Discriminatory concentrations of two aryloxyphenoxy-propionates (APP) and three cyclohexanediones (CHD) were determined using a petri-dish bioassay. These concentrations were then applied to 82 resistant wild oat lines identified in previous studies. In addition, two resistant standards (UM1 and UM33) and a susceptible standard (UM5) were included in the experiments. Coleoptile lengths expressed as percentages of untreated controls were used to assess the level of resistance to each herbicide. Large variations were observed among wild oat lines and herbicides. However, cluster analysis summarized the relationship between the five herbicides (variables) and the wild oat lines into three main cross-resistance types. Type A included wild oat lines with high resistance to APP herbicides and no or low resistance to CHD herbicides. Types B and C included those with low to moderate resistant and high levels of resistance to all five herbicides, respectively. Type C was the most common cross-resistance type. Relationships among herbicides were determined using pairwise correlation and principal component analysis (PCA). All correlations were high between APP herbicides and between CHD herbicides but not between APP and CHD herbicides. The first two axes of the PCA accounted for 88.4% of the total variance, with the first axis correlated to the CHD herbicides and the second axis correlated to the APP herbicides. In the PCA, wild oat lines were segregated into the three types identified in the cluster analysis. Although CHD and APP herbicides bind at the same region on the ACCase, resistant wild oat lines respond differently to them.

Molecular and Morphological characterization of multiple nucleopolyhedrovirus from Mexico and their insecticidal activity against Spodoptera frugiperda (Lepidoptera: Noctuidae)

2019 ◽  
Vol 144 (1-2) ◽  
pp. 123-132
Author(s):  
Magali Ordóñez‐García ◽  
Claudio Rios‐Velasco ◽  
José de Jesús Ornelas‐Paz ◽  
Juan Carlos Bustillos‐Rodríguez ◽  
Carlos Horacio Acosta‐Muñiz ◽  
...  
Keyword(s):  
Insecticidal Activity ◽  
Spodoptera Frugiperda ◽  
Morphological Characterization ◽  
Multiple Nucleopolyhedrovirus ◽  
Lepidoptera Noctuidae

Baseline Susceptibility ofSpodoptera frugiperda(Lepidoptera: Noctuidae) to SfMNPV and Evaluation of Cross-Resistance to Major Insecticides and Bt Proteins

2018 ◽  
Vol 112 (1) ◽  
pp. 91-98 ◽  
Author(s):  
José P F Bentivenha ◽  
Juliana G Rodrigues ◽  
Marcelo F Lima ◽  
Paula Marçon ◽  
Holly J R Popham ◽  
...  
Keyword(s):  
Cross Resistance ◽  
Lepidoptera Noctuidae
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