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

scholarly journals Cross-Resistance Studies of Cry1Ac-Resistant Strains of Helicoverpa armigera (Lepidoptera: Noctuidae) to Cry2Ab

2007 ◽  
Vol 100 (3) ◽  
pp. 909-915 ◽  
Author(s):  
Shudong Luo ◽  
Kongming Wu ◽  
Yan Tian ◽  
Gemei Liang ◽  
Xue Feng ◽  
...  
Keyword(s):  
Helicoverpa Armigera ◽  
Cross Resistance ◽  
Helicoverpa Armígera ◽  
Resistant Strains ◽  
Lepidoptera Noctuidae

Cross-resistance and baseline susceptibility of Spodoptera litura (Fabricius) (Lepidoptera: Noctuidae) to cyantraniliprole in the south of China

2015 ◽  
Vol 72 (5) ◽  
pp. 922-928 ◽  
Author(s):  
Song Sang ◽  
Benshui Shu ◽  
Xin Yi ◽  
Jie Liu ◽  
Meiying Hu ◽  
...  
Keyword(s):  
Spodoptera Litura ◽  
Cross Resistance ◽  
The South ◽  
Lepidoptera Noctuidae

Insecticide Cross-Resistance in Pyrethroid-Resistant Strains of Tobacco Budworn (Lepidoptera: Noctuidae)

1988 ◽  
Vol 81 (6) ◽  
pp. 1529-1535 ◽  
Author(s):  
Roger B. Leonard ◽  
Thomas C. Sparks ◽  
Jerry B. Graves
Keyword(s):  
Cross Resistance ◽  
Resistant Strains ◽  
Lepidoptera Noctuidae

Resistance Risk Evaluated by Metaflumizone Selection and the Effects on Toxicities Over Other Insecticides in Spodoptera exigua (Lepidoptera: Noctuidae)

2019 ◽  
Vol 112 (5) ◽  
pp. 2354-2361
Author(s):  
Xing-Xing Sun ◽  
Hong-Yang Li ◽  
Ying-Jie Jiang ◽  
Jun-Xi Zhang ◽  
Hui-Ling Gu ◽  
...  
Keyword(s):  
Spodoptera Exigua ◽  
Channel Blocker ◽  
Resistance Management ◽  
Cross Resistance ◽  
Realized Heritability ◽  
Sodium Channel Blocker ◽  
Resistance Risk ◽  
Resistance Evolution ◽  
Threshold Trait ◽  
Lepidoptera Noctuidae

Abstract Metaflumizone is a novel semicarbazone insecticide. It functions as a sodium channel blocker insecticide (SCBI) with excellent insecticidal activity on most economically important lepidopterous pests. This study assessed the resistance risk of Spodoptera exigua (Hübner) (Lepidoptera: Noctuidae) to metaflumizone in the laboratory and the effects of metaflumizone selection on toxicities to other insecticides. Spodoptera exigua collected from a field population at Huizhou in 2012 were successively challenged by metaflumizone to evaluate the risk of resistance evolution. Twelve generations of selection increased resistance to metaflumizone by 3.4-fold and threshold trait analysis revealed that the realized heritability (h2) of this resistance was 0.086. When h2 was equal to 0.086 and 90% of individuals were killed at each generation, LC50 to metaflumizone increased by 10-fold after 15 generations. The selection by metaflumizone did not increase the resistance to indoxacarb, chlorantraniliprole, spinosad, methomyl, or endosulfan, suggesting a lack of cross-resistance. However, metaflumizone challenge upheld the recession of resistance to emamectin benzoate, chlorfluazuron, and tebufenozide. The block of resistance drops by metaflumizone exposure implied a possible cross-resistance between metaflumizone and these three insecticides. These results contribute to integrated resistance management of S. exigua.

Baseline Response, Monitoring, and Cross-Resistance of Spodoptera frugiperda (Lepidoptera: Noctuidae) to Sodium Channel Blocker Insecticides in Brazil

2021 ◽  
Author(s):  
Ingrid S Kaiser ◽  
Rubens H Kanno ◽  
Anderson Bolzan ◽  
Fernando S A Amaral ◽  
Ewerton C Lira ◽  
...  
Keyword(s):  
Sodium Channel ◽  
Spodoptera Frugiperda ◽  
Channel Blocker ◽  
Resistance Management ◽  
Response Monitoring ◽  
Cross Resistance ◽  
Channel Blockers ◽  
Sodium Channel Blocker ◽  
Baseline Response ◽  
Lepidoptera Noctuidae

Abstract Spodoptera frugiperda (J.E. Smith) is one of the key cross-crop pests in Brazilian agroecosystems. Field-evolved resistance of S. frugiperda to some conventional insecticides and Bt proteins has already been reported. Thus, the use of insecticides with new mode of action such as sodium channel blockers (indoxacarb and metaflumizone) could be an important tool in insecticide resistance management (IRM) programs. To implement a proactive IRM, we conducted baseline response and monitoring to indoxacarb and metaflumizone in 87 field populations of S. frugiperda collected from major maize-growing regions of Brazil from 2017 to 2020, estimated the frequency of resistance alleles to indoxacarb, and evaluated cross-resistance of indoxacarb and metaflumizone to some selected insecticides and Bt proteins. Low variation in susceptibility to indoxacarb (4.6-fold) and metaflumizone (2.6-fold) was detected in populations of S. frugiperda in 2017. The frequency of the resistance allele to indoxacarb was 0.0452 (0.0382–0.0527 CI 95%), by using F2 screen method. The mean survival at diagnostic concentration, based on CL99, varied from 0.2 to 12.2% for indoxacarb and from 0.0 to 12.7% for metaflumizone, confirming high susceptibility of S. frugiperda to these insecticides in Brazil. No cross-resistance was detected between sodium channel blocker insecticides and other insecticides (organophosphate, pyrethroid, benzoylurea, spinosyn, and diamide) and Bt proteins. These findings showed that sodium channel blocker insecticides are important candidates to be exploited in IRM strategies of S. frugiperda in Brazil.

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