Results 51 to 60 of about 528,140 (277)

Interrupting the Response of \u3ci\u3eDendroctonus Simplex\u3c/i\u3e Leconte (Coleoptera: Curculionidae: Scolytinae) to Compounds That Elicit Aggregation of Adults [PDF]

open access: yes, 2018
The eastern larch beetle, Dendroctonus simplex LeConte (Coleoptera: Curculionidae: Scolytinae), is a native bark beetle that has caused significant mortality to tamarack, Larix laricinia, in the Upper Peninsula of Michigan.
Graham, Elizabeth E, Storer, Andrew J
core   +2 more sources

A Cold Stress‐Activated Endocrine Sentinel Chemical Hormone Promotes Insect Survival via Mitochondrial Adaptations Through the Adipokinetic Hormone Receptor

open access: yesAdvanced Science, EarlyView.
Seasonal cold adaptation is vital for insect survival, yet the molecular mechanisms linking diapause to mitochondrial resilience remain largely unresolved. We identify ascaroside C9 (asc‐C9) as a key endocrine signal that enhances diapause survival during cold stress by activating the AKHR–PGC1α–UCP4 axis, thereby driving cold‐induced lipolysis and ...
Jiao Zhou   +14 more
wiley   +1 more source

A protecting group-free synthesis of the Colorado potato beetle pheromone

open access: yesBeilstein Journal of Organic Chemistry, 2013
A novel synthesis of the aggregation pheromone of the Colorado potato beetle, Leptinotarsa decemlineata, has been developed based on a Sharpless asymmetric epoxidation in combination with a chemoselective alcohol oxidation using catalytic [(neocuproine ...
Zhongtao Wu   +3 more
doaj   +1 more source

Double-attraction method to control Frankliniella occidentalis (Pergande) in pepper crops in Tunisia

open access: yesPlant Protection Science, 2014
Blue sticky traps with and without pheromone capsules were used to monitor and control Frankliniella occidentalis Pergande (1895) (Thysanoptera; Thripidae) in pepper crop greenhouses in Tunisia.
Mohamed Elimem   +2 more
doaj   +1 more source

Biological Control of the Chagas Disease Vector Triatoma infestans with the Entomopathogenic Fungus Beauveria bassiana Combined with an Aggregation Cue: Field, Laboratory and Mathematical Modeling Assessment [PDF]

open access: yes, 2015
Background: Current Chagas disease vector control strategies, based on chemical insecticide spraying, are growingly threatened by the emergence of pyrethroid-resistant Triatoma infestans populations in the Gran Chaco region of South America. Methodology
Cardozo, Rubén Marino   +8 more
core   +4 more sources

Chapter 13: Sand fly sex/aggregation pheromones

open access: yes, 2022
Sand flies are an ancient group of Diptera estimated to contain 1000 species. Approximately 70 of these transmit pathogens (viruses, bacteria and protists), which cause human and animal diseases. The most important are the Leishmania parasites, transmitted to humans and animals, during blood feeding by female sand flies, and which cause diseases that ...
openaire   +2 more sources

Intertidal Warfare: Synergistic Allelopathy Mediates Spatial Competition between Two Marine Calcareous‐Shelled Sessile Organisms

open access: yesAdvanced Science, EarlyView.
This study reveals a hidden chemical weapon among calcareous‐shelled sessile organisms in the intertidal zone: the barnacle Balanus albicostatus releases a synergistic blend of palmitic acid and 1‐palmitoyl‐sn‐glycero‐3‐phosphocholine as the allelochemical with the inhibitory activity against attachment of the mussel Vignadula atrata, which may mediate
Zhuo Li   +9 more
wiley   +1 more source

Aggregation Pheromone Density Based Image Segmentation [PDF]

open access: yes, 2006
Ants, bees and other social insects deposit pheromone (a type of chemical) in order to communicate between the members of their community. Pheromone that causes clumping or clustering behavior in a species and brings individuals into a closer proximity is called aggregation pheromone.
Susmita Ghosh   +2 more
openaire   +1 more source

Engineering New‐to‐Nature Biological Pathways for β,γ‐Alkanediol Synthesis

open access: yesAdvanced Science, EarlyView.
β,γ‐Alkanediols are value‐added chemicals to be used as functional solvents, biofuels, and cosmetic components. This work demonstrates a carboligation‐mediated approach for synthesis of linear chain β,γ‐alkanediols in Escherichia coli, namely, hexane‐2,3‐diol (2,3‐HDO) and pentane‐2,3‐diol (2,3‐PDO). The engineered E. coli cells produce 152.2 mm (17.98
Haofeng Chen   +6 more
wiley   +1 more source

Feromônios de agregação em curculionidae (insecta: coleoptera) e sua implicação taxonômica Aggregation pheromone in curculionidae (insecta: coleoptera) and their taxonomic implication

open access: yesQuímica Nova, 2009
The pheromones of the weevils has been the most studied and used so far for Coleoptera species. The majority of reported weevil pheromones is produced by males and usually attract both sexes.
Bianca Giuliano Ambrogi   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy