Results 141 to 150 of about 128,269 (307)

Bioassay- and Chemistry-Guided Isolation of Scalemic Caged Prenylxanthones from the Leaves of Garcinia bracteata

open access: yes, 2018
With bioassay- and chemistry-guided fractionation, seven new caged prenylxanthones including two scalemic mixtures, epiisobractatin (1), 13-hydroxyisobractatin (2), 13-hydroxyepiisobractatin (3), 8-methoxy-8,8a-dihydrobractatin (4), 8-ethoxy-8,8a ...
Yue-Tong Wang (4992881)   +9 more
core   +1 more source

Validation of a novel bioassay method for the evaluation of the activity of slow‐acting insecticides on tomato borer Phthorimaea absoluta

open access: yesPest Management Science, EarlyView.
Extended bioassays revealed that azadirachtin and spirotetramat show strong delayed effects against Phthorimaea absoluta, underestimated by the standard Insecticide Resistance Action Committee (IRAC) method 022 protocol. Incorporating long‐term exposures is essential to accurately assess slow‐acting insecticides and improve resistance management ...
Marianna Stavrakaki   +7 more
wiley   +1 more source

Discovery of edodine, a natural compound from Lentinula edodes with antibacterial activity for the biological control of fire blight pathogen Erwinia amylovora

open access: yesPest Management Science, EarlyView.
Novel edodine was identified from Lentinula edodes HK761, exhibiting biocontrol potential against fire blight by affecting motility, intracellular ATP level, and cell division of Erwinia amylovora. Abstract BACKGROUND In the search for biological resources with antibacterial activity against Erwinia amylovora, the culture filtrate of Lentinula edodes ...
Yeong Seok Kim   +7 more
wiley   +1 more source

A formulation‐driven plant‐derived nanoemulsion for root‐knot nematode control in tomato: efficacy across pot and greenhouse conditions

open access: yesPest Management Science, EarlyView.
Plant‐derived nanoemulsion for root‐knot nematode control in tomato: formulation concept, proposed mode of action, and efficacy under pot and greenhouse conditions. Abstract Objective Nanoemulsion‐based delivery systems offer a promising approach to improve the stability and biological performance of plant‐derived nematicides.
Ramanan Ganapathy, Ahmet Aykaç
wiley   +1 more source

Methomyl resistance in Dalbulus maidis (Hemiptera: Cicadellidae): selection, inheritance and multiple‐resistance

open access: yesPest Management Science, EarlyView.
The inheritance of methomyl resistance in Dalbulus maidis is autosomal, incompletely dominant and polygenic. No cross‐resistance was found between methomyl and chlorfenapyr, cyantraniliprole and isocycloseram. Abstract BACKGROUND Acetylcholinesterase (AChE) inhibitor insecticides have been important tools for the management of Dalbulus maidis in Brazil;
Matheus Gerage Sacilotto   +3 more
wiley   +1 more source

Host‐induced silencing of the Minc09294 effector gene impairs Meloidogyne incognita and M. Enterolobii infection

open access: yesPest Management Science, EarlyView.
Host‐induced gene silencing of the effector candidate Minc09294 significantly impairs Meloidogyne incognita parasitism, markedly reducing gall formation, reproduction, and the development of specialized giant cells, with partial cross‐species effects on M.
João Pedro Abreu‐Sousa   +16 more
wiley   +1 more source

Reduced fitness cost accounts for the stability of a malathion‐resistant heterogeneous duplication haplotype in Ceratitis capitata field populations

open access: yesPest Management Science, EarlyView.
Malathion resistance in Spanish field populations of Ceratitis capitata is associated with a point mutation (R allele) and a heterogeneous duplication (RS haplotype) of the Ccace2 gene. The R allele imposes a higher fitness cost than the RS haplotype under laboratory and field conditions. An evolutionary model supports the stability of the RS haplotype
Rabeh Arouri   +6 more
wiley   +1 more source

Lack of fitness cost associated to CYP9K1‐mediated insecticide resistance in Anopheles funestus, represents a threat to vector control

open access: yesPest Management Science, EarlyView.
The 454A‐CYP9K1‐mediated resistance confers fitness advantages regarding pupation and longevity in Anopheles funestus, resulting to a slow susceptibility reversion. By contrast, the 119F‐GSTe2 resistance allele rapidly declines. Abstract BACKGROUND Resistance management is critical to maintain insecticide effectiveness in malaria control, and ...
Claudine Raïssa Keyoumbu Manyaka‐Tientcheu   +5 more
wiley   +1 more source

Bioassay for detection of xenobiotics

open access: yes, 2014
The present invention relates to bioassay for the detection of xenobiotics. The present invention also relates to a product for detection of xenobiotics based on the inhibition of luminescence of Photobacterium sp.
Abd. Shukor, Mohd. Yunus   +5 more
core   +1 more source

Chlorantraniliprole: bioactivation in coffee seedlings and control of resistant Leucoptera coffeella populations

open access: yesPest Management Science, EarlyView.
Chlorantraniliprole enhanced growth and biomass in coffee seedlings infested by susceptible Leucoptera coffeella, while resistant populations limited its insecticidal performance. These findings emphasize both the bioactivator potential of chlorantraniliprole and the challenges of managing resistance in coffee leaf miner control.
Beatriz Sousa Coelho   +9 more
wiley   +1 more source

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