Results 41 to 50 of about 730 (192)

Synthesis, Antifungal Activity and Structure-Activity Relationships of Novel 3-(Difluoromethyl)-1-methyl-1H-pyrazole-4-carboxylic Acid Amides

open access: yesMolecules, 2015
A series of novel 3-(difluoromethyl)-1-methyl-1H-pyrazole-4-carboxylic acid amides were synthesized and their activities were tested against seven phytopathogenic fungi by an in vitro mycelia growth inhibition assay.
Shijie Du   +8 more
doaj   +1 more source

Molecular diversity of Alternaria spp. from leafy vegetable crops, and their sensitivity to azoxystrobin and boscalid

open access: yesPhytopathologia Mediterranea, 2020
Severe outbreaks of Alternaria leaf spot have occurred in Northern Italy on leafy vegetable and ornamental hosts. This disease is mainly controlled by two classes of respiration inhibitor fungicides, QoIs (including azoxystrobin) and SDHIs (including ...
Slavica MATIĆ   +4 more
doaj   +1 more source

A New Approach: Determining cyt b G143A Allele Frequency in Zymoseptoria tritici by Digital Droplet PCR

open access: yesBiology, 2022
Z. tritici first appeared in Italy later than in northern-central European countries. QoIs fungicides currently play a role in STB control, used in combination with Demethylation Inhibitors (DMIs) or Succinate dehydrogenase Inhibitors (SDHIs).
Greta Battistini   +2 more
doaj   +1 more source

Sensitivity of Irish Pyrenopeziza brassicae populations to methyl benzimidazole carbamate (MBC), quinone outside inhibitor (QoI) and succinate dehydrogenase inhibitor (SDHI) fungicides

open access: yesPest Management Science, EarlyView.
For three collections of Irish Pyrenopeziza brassicae populations fungicide sensitivity status to methyl benzimidazole carbamate (MBC), quinone outside inhibitor (QoI) and succinate dehydrogenase inhibitor (SDHI) fungicides was determined using sensitivity screening in vitro. Molecular mechanisms of insensitivity have been identified for MBC and QoI in
Diana E Bucur   +3 more
wiley   +1 more source

Monitoring fungicide resistance frequencies – a case study of barley net blotch

open access: yesPest Management Science, EarlyView.
Droplet digital PCR revealed the frequency of alleles associated with decreased sensitivity to demethylation inhibitor (DMI) and succinate dehydrogenase inhibitor (SDHI) fungicides in Pyrenophora teres from barley net blotch in Western Australia. The findings highlight field‐level allele dynamics and emerging risks to fungicide efficacy.
Noel L. Knight   +5 more
wiley   +1 more source

Fungicide sensitivity levels in the Lithuanian Zymoseptoria tritici population in 2021

open access: yesFrontiers in Plant Science, 2023
Zymoseptoria tritici causes the disease known as septoria leaf blotch in winter wheat and is a major factor in yield loss worldwide. Farmers are inclined to use fungicides to protect their crops; however, the efficacy of these measures is rapidly ...
Karolina Lavrukaitė   +4 more
doaj   +1 more source

Characteristics of fungicide resistance in Asian soybean rust (Phakopsora pachyrhizi) in Paraguay for 2022–2023: insights from genetic mutations and molecular dynamics simulations

open access: yesPest Management Science, Volume 82, Issue 4, Page 3116-3126, April 2026.
Phakopsora pachyrhizi in Paraguay showed diverse resistance to DMI, SDHI, and QoI fungicides at both regional and intra‐field levels, likely driven by target mutation genes. Abstract BACKGROUND Phakopsora pachyrhizi, the causative agent of Asian soybean rust, poses a major threat to soybean production in South America. The rising incidence of fungicide
Ryusuke Hagihara   +5 more
wiley   +1 more source

Profiling azole resistant haplotypes within Zymoseptoria tritici populations using nanopore sequencing

open access: yesFrontiers in Agronomy, 2022
Zymoseptoria tritici is the causal agent of Septoria tritici blotch, the most important disease affecting wheat crops and responsible for up to 50% loss in yield. Azoles and SDHIs are the main groups of fungicides used to control the disease.
Yaiza Gutierrez Vazquez   +13 more
doaj   +1 more source

A new method to measure EC50 reveals cultivar‐specific fungicide resistance and very high diversity within experimental field populations of Zymoseptoria tritici

open access: yesPest Management Science, Volume 82, Issue 4, Page 3613-3624, April 2026.
We isolated Zymoseptoria tritici strains from a diverse wheat field and quantified fungicide resistance using a novel plate assay. We found high diversity in fungicide sensitivity and host–fungicide–pathogen interactions. Abstract BACKGROUND Zymoseptoria tritici causes Septoria tritici blotch (STB), the most damaging wheat disease in Europe. In Europe,
Firas Talas   +2 more
wiley   +1 more source

Epidemiological Studies of Pan-Azole Resistant Aspergillus fumigatus Populations Sampled during Tulip Cultivation Show Clonal Expansion with Acquisition of Multi-Fungicide Resistance as Potential Driver

open access: yesMicroorganisms, 2021
Pan-azole resistant isolates are found in clinical and environmental Aspergillus fumigatus (Af) populations. Azole resistance can evolve in both settings, with Af directly targeted by antifungals in patients and, in the environment, Af unintendedly ...
Bart A. Fraaije   +5 more
doaj   +1 more source

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