Studies on Spatial Distribution of Phosphine Resistance in Rice Weevil, <i>Sitophilus Oryzae</i> (L.) (Curculionidae: Coleoptera) Collected from Tamil Nadu

Rajan, T. Sonai; Mohankumar, S.; Чандрасекаран, С.

doi:10.5958/0974-8172.2017.00061.x

Cited by 7 publications

(5 citation statements)

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“…The new batch of (next generation) adults emerged from the culture with uniform age were used for the phosphine resistance bioassay. Phosphine gas was generated in a gas generation chamber and volume of dessicator was measured by following the procedure as described by Sonai Rajan et al, (2015). The correct phosphine gas volume for injection was determined based on weight by volume basis, which was previously described by FAO Method No.…”

Section: Methodsmentioning

confidence: 99%

Studies on Use of TNAU- UV Light Trap for Management of Phosphine Resistance in Lasioderma serricorne (F.) (Coleoptera:Anobiidae) in Turmeric Warehouses

Rajesh¹,

Mohan²

2016

MAJ

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Lasioderma serricorne (F.) commonly called cigarette beetle is a cosmopolitan, polyphagous and major insect pest of stored turmeric that is known to be resistant to the phosphine fumigation. Practical studies were carried out to assess the efficacy of TNAU UV-Light Trap in mass trapping of L. serricorne during the pre and post fumigation periods and its role in phosphine resistance management in L. serricorne in turmeric warehouses. Adult beetles collected from UV light traps before and after fumigation were tested through bioassay on the basis of the response of adults to discriminating concentration of 0.07mg L -1 for 24 h exposure period using modified FAO method (FAO, 1975). The results of the present study showed that, the mean number of adults caught per trap/day before and after fumigation ranged from 52.7 to 83.5 and 9.6 to 18.2 beetles per light trap, respectively. The bioassay results showed that, the phosphine resistance level in L. serricorne collected from UV- Light traps ten days before and after fumigation ranged from 52.85 to 65.37 and 68.24 to 76.53 per cent, respectively. Further, the beetles caught in large numbers in light traps during the post fumigation period were found to be more resistant to phosphine than the pre fumigation population. Hence, UV- Light trap can be used as one of the resistance management strategy for phosphine resistance in L. serricorne in turmeric warehouses since mass trapping of L. serricorne was recorded in TNAU- UV Light trap during pre and post fumigation periods.

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Section: Methodsmentioning

confidence: 99%

Studies on Use of TNAU- UV Light Trap for Management of Phosphine Resistance in Lasioderma serricorne (F.) (Coleoptera:Anobiidae) in Turmeric Warehouses

Rajesh¹,

Mohan²

2016

MAJ

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“…Ten percent of the insects collected worldwide exhibited some degree of phosphine resistance [ 12 ]. Currently, reports of high-level phosphine resistance among stored product pests are common around the world [ 13 , 14 , 15 , 16 , 17 , 18 , 19 ]. Australia is unique in having a national resistance-monitoring program that has been in place for nearly three decades.…”

Section: Introductionmentioning

confidence: 99%

Pesticidal Toxicity of Phosphine and Its Interaction with Other Pest Control Treatments

Alzahrani

Ebert

2023

CIMB

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Phosphine is the most widely used fumigant for stored grains due to a lack of better alternatives, all of which have serious shortcomings that restrict their use. The extensive use of phosphine has led to the development of resistance among insect pests of grain, which threatens its status as a reliable fumigant. Understanding the mode of action of phosphine as well as its resistance mechanisms provides insight that may lead to improved phosphine efficacy and pest control strategies. The mechanisms of action in phosphine vary from disrupting metabolism and oxidative stress to neurotoxicity. Phosphine resistance is genetically inherited and is mediated by the mitochondrial dihydrolipoamide dehydrogenase complex. In this regard, laboratory studies have revealed treatments that synergistically enhance phosphine toxicity that may be used to suppress resistance development and enhance efficacy. Here, we discuss the reported phosphine modes of action, mechanisms of resistance and interactions with other treatments.

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“…Residue and environmental risks associated with sulfuryl fluoride and methyl bromide have left phosphine as the only general use fumigant 2,3 . The heavy reliance on phosphine has led to the selection of strong resistance against phosphine among major insect pests of grain, including the flat grain beetle Cryptolestes ferrugineus , the lesser grain borer Rhyzopertha dominica , the rust red flour beetle Tribolium castaneum , the psocids Liposcelis bostrychophila , L. bostrychophila 4 , and the rice weevil Sitophilus oryzae 4–6 .…”

Section: Introductionmentioning

confidence: 99%

Attenuation of radiation toxicity by the phosphine resistance factor dihydrolipoamide dehydrogenase (DLD)

Alzahrani

Ebert

2019

Sci Rep

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Phosphine gas is an excellent fumigant for disinfesting stored grain of insect pests, but heavy reliance on phosphine has led to resistance in grain pests that threatens its efficacy. Phosphine-resistance was previously reported to be mediated by the enzyme DLD. Here we explore the relationship between phosphine toxicity and genotoxic treatments with the goal of understanding how phosphine works. Specifically, we utilized mutant lines either sensitive or resistant to phosphine, gamma irradiation or UV exposure. The phosphine-resistance mutation in the enzyme of energy metabolism, dihydrolipoamide dehydrogenase exhibited cross-resistance to UV and ionizing radiation. Two radiation-sensitive mutants that are defective in DNA repair as well as a mutant that is defective in the activation of the DAF-16 stress response transcription factor all exhibit sensitivity to phosphine that exceeds the sensitivity of the wild type control. A radiation resistance mutation in cep- 1, the p53 orthologue, that is deficient in double strand break repair of DNA and is also deficient in apoptosis causes radiation-resistance results but sensitivity toward phosphine.

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Studies on Spatial Distribution of Phosphine Resistance in Rice Weevil, Sitophilus Oryzae (L.) (Curculionidae: Coleoptera) Collected from Tamil Nadu

Cited by 7 publications

References 0 publications

Studies on Use of TNAU- UV Light Trap for Management of Phosphine Resistance in Lasioderma serricorne (F.) (Coleoptera:Anobiidae) in Turmeric Warehouses

Studies on Use of TNAU- UV Light Trap for Management of Phosphine Resistance in Lasioderma serricorne (F.) (Coleoptera:Anobiidae) in Turmeric Warehouses

Pesticidal Toxicity of Phosphine and Its Interaction with Other Pest Control Treatments

Attenuation of radiation toxicity by the phosphine resistance factor dihydrolipoamide dehydrogenase (DLD)

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