Phosphine resistance
WebJan 1, 2004 · At least 11 species of stored-product insects are now known to have developed resistance to phosphine (Chaudhry, 2000), which has been linked to selection … WebApr 8, 2015 · Phosphine (PH 3) fumigation is the primary method worldwide for controlling insect pests of stored commodities. Over-reliance on phosphine, however, has led to the …
Phosphine resistance
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WebDec 1, 2024 · Resistance to phosphine was detected in four out of 14 populations in adults and nine out of 14 populations in eggs and ranged from 2 to 100%. Phosphine percent survival values in both adults and eggs of three populations, namely, Box BR, Box BF, and OKWat were >90%. WebApr 23, 2024 · 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 …
WebSep 4, 2015 · The median lethal concentration values varied from 0.024 mg/L to 1.991 mg/L, with 1.63 to 82.96-fold resistance compared to laboratory susceptible checks. Antioxidant enzymes have been reported to negate the reactive oxygen species generated upon encountering the fumigant phosphine. WebMar 31, 2015 · Research in Australia during the past decade has reported two resistant phenotypes for T. castaneum and R. dominica: beetles with “weak” resistance that may …
WebDec 23, 2010 · Phosphine resistance is not discussed in detail, but may be referred to as required to explain a mechanism of phosphine toxicity. Phosphine is widely used as a fumigant [ 2] as it is gaseous above −88°C with a density of 1.17 times that of air, which allows it to disperse readily during fumigation. WebDec 1, 2016 · Based on adult data, the most resistant T. castaneum beetle population was 49× more resistant than the susceptible strain. Phosphine resistance frequencies in P. …
WebPhosphine (PH₃) is a colorless, flammable, and explosive gas at room temperature that smells like garlic or decaying fish. Exposure to phosphine may cause, nausea, vomiting, …
WebMay 1, 2024 · Phosphine resistance strain was developed with parental strain that was formed by mixing all the collected populations and kept for two months for proper mixing. 4th instar larvae (200–300 larvae) were exposed for 48 h to a selection dose of LC 70, determined based on preliminary bioassay. open money softwareWebJan 1, 1999 · Resistance to phosphine is an increasing problem and there have been widespread reports of resistance in T. castaneum in Australia (Attia & Greening, 1981; Daglish & Collins, 1999; Jagadeesan... open mongodb compass from cmdWebFeb 16, 2024 · Insect resistance to phosphine is a global problem that has become alarming, as resistant populations of stored product insects have been detected in most parts of the world and in at least... open monies charge meaningWebJan 1, 1999 · PDF On Jan 1, 1999, G.J. Daglish and others published Improving the relevance of assays for phosphine resistance Find, read and cite all the research you … open mongo shell windowsWebApr 15, 2015 · Phenotype testing showed all strains exhibited some level of phosphine resistance with a maximum level of 196 fold. Sequencing and genetic testing of seven field-collected strains showed that all... ip address in philippinesWebInsect resistance to phosphine, the primary fumigant used to combat stored grain pests, is a major problem in many countries such as Australia, … ip address in run commandWebThe resistance ratio at LC(50) in T. castaneum ranged from 1.0- to 186.2-fold, in R. dominica from 2.0- to 71.0-fold and in O. surinamensis from 1.9- to 32.2-fold. Ten populations of T. … open money services