Results 31 to 40 of about 15,926 (251)

Gut Bacteria Promote Phosphine Susceptibility of Tribolium castaneum by Aggravating Oxidative Stress and Fitness Costs

open access: yesInsects, 2023
Knowledge about resistance mechanisms can provide ideas for pesticide resistance management. Although several studies have unveiled the positive or negative impacts of gut microbes on host pesticide resistance, minimal research is available regarding the
Zhengyan Wang   +4 more
doaj   +1 more source

Progression of phosphine resistance in susceptible Tribolium castaneum (Herbst) populations under different immigration regimes and selection pressures. [PDF]

open access: yesEvol Appl, 2017
Insecticide resistance is an\ua0escalating global issue for a wide variety of agriculturally important pests. The genetic basis and biochemical mechanisms of resistance are well characterized in some systems, but little is known about the ecological ...
Rafter MA   +3 more
europepmc   +2 more sources

Status resistensi terhadap fosfin pada Tribolium castaneum Herbst (Coleoptera: Tenebrionidae) dari gudang penyimpanan biji kakao di Makassar Sulawesi Selatan

open access: yesJurnal Entomologi Indonesia, 2017
Control of postharvest pest on cocoa beans during storage is generally conducted by fumigation with phosphine. Long-term exposure to phosphine and improper fumigation practices could stimulate the development of resistant strains against phosphine.
Sri Widayanti   +2 more
doaj   +1 more source

Comparative toxicity of fumigants and a phosphine synergist using a novel containment chamber for the safe generation of concentrated phosphine gas. [PDF]

open access: yesPLoS ONE, 2006
With the phasing out of ozone-depleting substances in accordance with the United Nations Montreal Protocol, phosphine remains as the only economically viable fumigant for widespread use.
Nicholas Valmas, Paul R Ebert
doaj   +1 more source

Gene interactions constrain the course of evolution of phosphine resistance in the lesser grain borer, Rhyzopertha dominica [PDF]

open access: yes, 2008
Phosphine, a widely used fumigant for the protection of stored grain from insect pests, kills organisms indirectly by inducing oxidative stress. High levels of heritable resistance to phosphine in the insect pest of stored grain, Rhyzopertha dominica ...
Reilly, P.E.B.   +13 more
core   +1 more source

Role of Lipids in Phosphine Resistant Stored-Grain Insect Pests Tribolium castaneum and Rhyzopertha dominica

open access: yesInsects, 2022
Insects rely on lipids as an energy source to perform various activities, such as growth, flight, diapause, and metamorphosis. This study evaluated the role of lipids in phosphine resistance by stored-grain insects.
Ihab Alnajim   +5 more
doaj   +1 more source

Stress pre-conditioning with temperature, UV and gamma radiation induces tolerance against phosphine toxicity.

open access: yesPLoS ONE, 2018
Phosphine is the only general use fumigant for the protection of stored grain, though its long-term utility is threatened by the emergence of highly phosphine-resistant pests.
Saad M Alzahrani, Paul R Ebert
doaj   +1 more source

Delayed mortality, resistance and the sweet spot, as the good, the bad and the ugly in phosphine use

open access: yesScientific Reports, 2021
Phosphine is the most commonly used gas for fumigation for durable commodities globally, but there is still inadequate information regarding its efficacy in conjunction with proper concentration monitoring.
Evagelia Lampiri   +2 more
doaj   +1 more source

Reference gene selection to determine differences in mitochondrial gene expressions in phosphine-susceptible and phosphine-resistant strains of Cryptolestes ferrugineus, using qRT-PCR

open access: yesScientific Reports, 2017
Cryptolestes ferrugineus is a serious pest of stored grain and has developed high levels of resistance to phosphine fumigants in many countries. Measuring differences in expression levels of certain ‘resistant’ genes by quantitative real-time PCR (qRT ...
Pei-An Tang   +4 more
doaj   +1 more source

Effect of Nitrogen on Phosphine-Susceptible and -Resistant Populations of Stored Product Insects [PDF]

open access: yesInsects, 2020
In this study, we evaluated nitrogen treatment on phosphine-resistant field and -susceptible laboratory populations of different stored product beetles. Nine trials were conducted in commercial nitrogen chambers with the O2 level set at 1.0%. Two different temperatures—i.e., 28 and 40 °C—and three exposure intervals—i.e., 2.5, 3 and 9 d—were used in ...
Maria K. Sakka   +3 more
openaire   +3 more sources

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