Biochemical Resistance Mechanisms to Fenvalerate in Plutella xylostella (Lepidoptera: Plutellidae)

2019 ◽  
Vol 112 (3) ◽  
pp. 1372-1377
Author(s):  
Zahra Sayani ◽  
Azam Mikani ◽  
Hadi Mosallanejad
Keyword(s):  
Plutella Xylostella ◽  
Resistance Mechanisms ◽  
Biochemical Resistance

Evidence for resistance to pyrethroids and organophosphates inPlutella xylostella(Lepidoptera: Plutellidae) from Pakistan

2007 ◽  
Vol 97 (2) ◽  
pp. 191-200 ◽  
Author(s):  
A. Khaliq ◽  
M.N.R. Attique ◽  
A.H. Sayyed
Keyword(s):  
Insecticide Resistance ◽  
Integrated Pest Management ◽  
Pest Management ◽  
Plutella Xylostella ◽  
Management Strategies ◽  
Resistance Management ◽  
Resistance Mechanisms ◽  
Laboratory Population ◽  
Multiple Resistance ◽  
Low Toxicity

AbstractThe susceptibility of representative pyrethroid (cypermethrin, deltamethrin, lambdacyhalothrin, bifenthrin), organophosphate (chlorpyriphos, triazophos, profenophos) and new chemistry insecticides (spinosad, indoxacarb and emamectin) was investigated for 18 field populations ofPlutella xylostella(Linnaeus) from three different zones in Pakistan. The LC50(mg ml−1; 48 h) values of pyrethroids for various populations ranged from 0.19–1.88 for cypermethrin, 0.31–2.64 for deltamethrin, 0.08–1.16 for lambdacyhalothrin and 0.07–0.88 for bifenthrin. The LC50(mg ml−1; 48 h) of organophosphates ranged from 0.52–5.67 for chlorpyriphos, 0.37–4.14 for triazophos and 0.03–2.65 for profenophos. The most probable reason for low toxicity of organophosphates and pyrethroids is the evolution of multiple resistance mechanisms; however, further studies are required to establish these mechanisms. When these same products were tested against a susceptible laboratory population (Lab-Pak), the new chemistry compounds were significantly more toxic than pyrethroids and organophosphates. The results are discussed in relation to integrated pest management and insecticide resistance management strategies forP. xylostella.

Fenpyroximate resistance inTetranychus urticae(Acari: Tetranychidae): cross-resistance and biochemical resistance mechanisms

2004 ◽  
Vol 60 (10) ◽  
pp. 1001-1006 ◽  
Author(s):  
Young-Joon Kim ◽  
Si-Hyeock Lee ◽  
Si-Woo Lee ◽  
Young-Joon Ahn
Keyword(s):  
Resistance Mechanisms ◽  
Cross Resistance ◽  
Biochemical Resistance

scholarly journals Resistance mechanisms of white jabon seedlings (Anthocephalus cadamba) against Botryodiplodia theobromae causing dieback disease

2018 ◽  
Vol 19 (4) ◽  
pp. 1441-1450 ◽  
Author(s):  
LOLA ADRES YANTI ◽  
ACHMAD ACHMAD ◽  
NURUL KHUMAIDA
Keyword(s):  
Disease Incidence ◽  
Economic Value ◽  
Resistance Mechanism ◽  
Resistance Mechanisms ◽  
Microscopic Appearance ◽  
Stem Infection ◽  
Structural Resistance ◽  
Dieback Disease ◽  
Biochemical Resistance ◽  
Anthocephalus Cadamba

Yanti LA, Achmad, Khumaida N. 2018. Resistance mechanisms of white jabon seedlings (Anthocephalus cadamba) againstBotryodiplodia theobromae causing dieback disease. Biodiversitas 19: 1441-1450. Anthocephalus cadamba (Roxb.) Miq. seedlings arethe most preferred plant for the nursery as they serve a lot of benefits and can be used as shading trees, reforestation, plywood, pulp,paper, and traditional medicines. Further, those benefits can increase the economic value of this plant. The main problem in the nurseryof forestry plants is pest and disease attacks, one of which is dieback disease. The dieback disease is caused by Botryodiplodiatheobromae Pat. that may lead death of the host plant. Every plant has its resistance mechanism toward pathogen attacks. This researchaimed: (1) to study B. theobromae attack through wounded and non-wounded stem infection methods on white jabon seedlings; (2) tostudy the resistance mechanisms of white jabon seedlings both structural and biochemical resistance against B. theobromae. This studyemployed a factorial treatment design laid out in a completely randomized design. The structural resistance was determined by studyingthe microscopic appearance of the white jabon seedlings’ stem by using a scanning electron microscope. Meanwhile, the biochemicalresistance was determined by characterizing the chemical compounds of white jabon seedlings' stem using phytochemistry analysis. Theresult showed that the disease incidence of the control (inoculated without pathogen isolate) and the inoculated (inoculated withpathogen isolate) seedlings were, respectively, 0% and 100% (with wounded stem) and 0% and 30% (non-wounded). The diseaseseverity of control and inoculated seedlings were 0% and 62% (with wounded stem) and 0% and 12% (non-wounded stem),respectively. The incubation period of wounded and non-wounded stems on inoculated seedlings (inoculated with pathogen isolate) wasone day after inoculation with the numeric values (disease scores) of 4 and 2, respectively. White jabon seedlings had necrotic resistanceas structural resistance mechanism against the pathogen attack. White jabon seedlings also contained secondary metabolites such asalkaloids, flavonoid, phenyl hydroquinone, tannin, saponin, and steroids. The biochemical resistance of white jabon seedling afterpathogen attacks was shown by the increase of accumulated phenolic compounds such as flavonoid and tannin.

Resistance mechanisms ofPrunusrootstocks to root-knot nematode,Meloidogyne incognita

Fruits ◽  
2009 ◽  
Vol 64 (5) ◽  
pp. 295-303 ◽  
Author(s):  
Hang Ye ◽  
Wen-jun Wang ◽  
Guo-jie Liu ◽  
Li-xin Zhu ◽  
Ke-gong Jia
Keyword(s):  
Meloidogyne Incognita ◽  
Resistance Mechanisms ◽  
Root Knot Nematode

Emerging Antimicrobial Resistance Among Methicillin Resistant Staphylococcus Aureus (MRSA) in a Tertiary Care Centre in North India

JMS SKIMS ◽  
2020 ◽  
Vol 23 (1) ◽  
pp. 48-49
Author(s):  
Javaid Ahmad Bhat ◽  
Shariq Rashid Masoodi
Keyword(s):  
Staphylococcus Aureus ◽  
Antimicrobial Resistance ◽  
Tertiary Care ◽  
Resistance Mechanisms ◽  
North India ◽  
Global Public Health ◽  
Care Centre ◽  
Tertiary Care Centre ◽  
Effective Prevention ◽  
Mupirocin Resistance

Apropos to the article by Dr Bali, titled “Mupirocin resistance in clinical isolates of methicillin-sensitive and resistant Staphylococcus aureus in a tertiary care centre of North India” (1), the authors have raised important issue of emerging antimicrobial resistance (AMR). Antimicrobial resistance is an increasingly serious threat to global public health that requires action across all government sectors and society. As per WHO, AMR lurks the effective prevention and management of an ever-increasing spectrum of infections caused by bacteria, parasites, fungi and viruses. Novel resistance mechanisms are emerging and spreading globally, threatening the man’s ability to treat common infectious diseases.

Identification of Rynaxypyr resistant Plutella xylostella with RAPD-PCR

2011 ◽  
Vol 4 (6) ◽  
pp. 480-482
Author(s):  
Navid N Patel ◽  
◽  
Dr. K N Patel Dr. K N Patel ◽  
Vina Sagane
Keyword(s):  
Plutella Xylostella ◽  
Rapd Pcr
Sign in / Sign up

Export Citation Format

Share Document