Results 241 to 250 of about 32,452 (272)

The action of phosphine against the eggs of phosphine‐resistant and ‐susceptible strains of Rhyzopertha dominica F

Pest Management Science, 2001
AbstractThe effect of phosphine at exposure periods of 24, 48 and 120 h on hatching and mortality of 0‐ to 1‐day‐old eggs of susceptible (TN6) and resistant (FC10) strains of Rhyzopertha dominica of field origin was investigated. The fumigant affected hatching in both the strains.
S, Rajendran, K R, Nayak, S S, Anjum
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Resistance ofLasioderma serricorne(Coleoptera: Anobiidae) to Fumigation with Phosphine

Journal of Economic Entomology, 2015
Lasioderma serricorne (F.) is a serious pest of stored products that is known to be resistant to the fumigant pesticide gas phosphine. This study investigated resistance in populations from the southeastern United States, and determined if a recommended treatment schedule could kill resistant insects.
Özgür, Sağlam, Peter A, Edde, Thomas W, Phillips   +2 more
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Phosphine resistance in Lasioderma serricorne (F.) (Coleoptera: Anobiidae).

2003
AbstractThirty-one strains of the cigarette beetle, L. serricorne, collected from tobacco in 25 countries were established on laboratory diet over a three-year period. Fourteen strains were tested with seven concentrations of phosphine (0.0034 to 0.855 g/m3) and used to develop a mortality test for phosphine resistance based on the test for other ...
N. Savvidou, K. A. Mills, A. Pennington
openaire   +1 more source

Predicting mortality of phosphine‐resistant adults of Sitophilus oryzae (L) (Coleoptera: Curculionidae) in relation to changing phosphine concentration

Pest Management Science, 2004
Abstract Adults of a phosphine‐resistant strain of Sitophilus oryzae (L) were exposed to constant phosphine concentrations of 0.0035–0.9 mg litre −1 for periods of between 20 and 168 h at 25 °C, and the effects of time and ...
Daglish, G.J., Kopittke, R.A., Cameron, M.C., Pavic, H.   +3 more
openaire   +3 more sources

Genetics of resistance to phosphine in Rhyzopertha dominica (Coleoptera: Bostrichidae).

Journal of economic entomology, 2002
The inheritance of resistance to phosphine was studied in two strains of the lesser grain borer, Rhyzopertha dominica (F.), labeled 'Weak-R' and 'Strong-R'. These strains were purified versions of field-selected populations collected in Queensland, Australia.
Collins, Patrick J., Daglish, Gregory J., Bengston, Mervyn, Lambkin, Tina M., Pavic, Hervoika   +4 more
openaire   +3 more sources

Responses of phosphine‐resistant strains of two stored‐product insect pests to changing concentrations of phosphine

Pesticide Science, 1994
AbstractAbstract: The susceptibility of eggs, pupae and adults of Tribolium castaneum (Herbst) and adults of Rhyzopertha dominica (F.), (both phosphine‐resistant strains) to phosphine at fixed concentration‐time (ct) products, with either constant or increasing or decreasing concentrations was studied at 25 (± 1)°C.
openaire   +1 more source

Studies on phosphine toxicity and resistance mechanisms in Caenorhabditis elegans

2023
Phosphine, hydrogen phosphide (PH3), gas is a fumigant that is used worldwide to protect stored grain from infestation by insect pests. Despite a long history of phosphine use, little is known about either the mode of action of this compound or the mechanisms whereby insect pests have become resistant.
openaire   +1 more source

Rationale Behind the Resistance of Dialkylbiaryl Phosphines toward Oxidation by Molecular Oxygen

Journal of the American Chemical Society, 2007
Electron-rich dialkylbiaryl phosphines, which comprise a common class of supporting ligands for Pd-catalyzed cross-coupling reactions, are highly resistant toward oxidation by molecular oxygen. Presented herein are possible reasons why this class of phosphine ligands manifests this property.
Timothy E, Barder, Stephen L, Buchwald
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Pesticide Resistance to Phosphine and Biotest

2017
Rezistentnost štetnika na fumigante predstavlja otpornost jedinki u populaciji štetnika da prežive izloženost letalnim dozama. U praksi se rezistencija uočava kao postupni gubitak učinkovitosti fumiganta, a nastaje nakon što je populacija štetnika na terenu bila tijekom dužeg vremenskog razdoblja tretirana istim fumigantom ili fumigantom istog načina ...
Korunić, Zlatko, Liška, Anita, Rozman, Vlatka   +2 more
openaire  

Phosphine resistance does not confer cross‐resistance to sulfuryl fluoride in four major stored grain insect pests

Pest Management Science, 2016
Abstract BACKGROUND Susceptibility to phosphine ( PH 3 ) and sulfuryl fluoride ( SF ) and cross‐resistance to
Jagadeesan, Rajeswaran, Nayak, Manoj K.
openaire   +3 more sources