A5086347329- Insect-Plant Interactions and Control
- Insect and Pesticide Research
- Insect Pheromone Research and Control
- European and International Law Studies
- Plant and animal studies
- Research on scale insects
- Insect and Arachnid Ecology and Behavior
- Law and Political Science
- Forest Insect Ecology and Management
- Insect Pest Control Strategies
- Hemiptera Insect Studies
- Lepidoptera: Biology and Taxonomy
- European Criminal Justice and Data Protection
- European Union Policy and Governance
- European Monetary and Fiscal Policies
- Insect Utilization and Effects
- Mercury impact and mitigation studies
- Neurobiology and Insect Physiology Research
- Hymenoptera taxonomy and phylogeny
- Plant Parasitism and Resistance
- Chemical synthesis and alkaloids
- Fire effects on ecosystems
- Entomological Studies and Ecology
- Botanical Research and Applications
- Medical and Health Sciences Research
Pontificia Universidad Católica de Valparaíso
2015-2024
Agenus (United States)
2020
Universidade Federal do Paraná
2009-2010
University of Valparaíso
2005-2009
Universität Hamburg
2001-2008
Institute of Marine and Coastal Research
2004
KTH Royal Institute of Technology
1995
Technische Universität Berlin
1986
Mediterranean climate regions have become more vulnerable to fire due the extreme weather conditions and numerous Eucalyptus globulus plantation areas. The aim of this study is analyze hazard related E. in a forest scenario, based on contrast thermochemical parameters their relationship with chemical properties, considering predominant exotic species (E. globulus, Pinus radiata, Acacia dealbata, melanoxylon) present Valparaiso region, Chile. results revealed that although all studied were...
Forest fires are one of the main environmental threats in Chile. Fires this Mediterranean climate region frequently affect native forests and exotic plantations, including several cases urban rural settlements. Considering scarcity information regarding fire response dynamics tree species that affected by fires, study aims to establish a flammability classification according evolution initiation risk presented most forest Valparaíso region. Three species, Eucalyptus globulus, Pinus radiata,...
In the caddisfly Molanna angustata, females produce a sex pheromone in glands with openings on fifth sternite. Gas chromatographic analyses of gland extracts electroantennographic detection revealed four major compounds that stimulated male antennae. These were identified by means gas chromatography-mass spectrometry and enantioselective chromatography as heptan-2-one, (S)-heptan-2-ol, nonan-2-one, (S)-nonan-2-ol approximate ratio 1:1:4:10, respectively. Field tests showed mixture two...
Glands of the 4th and 5th abdominal sternite caddis flies Potamophylax latipennis, cingulatus, Glyphotaelius pellucidus contain (S)-4-methyl-3-heptanone (4a), (4S,6S)-4,6-dimethyl-3-octanone (4b), (4S,6S)-4,6-dimethyl-3-nonanone (4c). As shown by gas chromatography coupled with electrophysiological recordings, these ketones elicit a strong response in insects’ antennae. The structural assignment compounds was achieved on basis mass spectra, enantioselective synthesis, chiral stationary phase.
Insect pheromone research has a long and rich history built up primarily by studies conducted in the Northern hemisphere. Not surprisingly, these have largely targeted species relevant to regions of world, for most part agricultural forest pests. Pheromone South American countries came few decades behind, albeit their strong dependence agriculture therefore pest management. In last 20 years, combination economic, environmental technical factors come together generate small but rising number...
Persicaria maculosa (Polygonaceae) (known as lady’s thumb) is an annual morphologically variable weed that widely distributed in Chile. The purpose of this study was to investigate the antifeedant potential methanolic (MeOH), ethanolic (EtOH), and dichloromethane (DCM) extracts from aerial parts plant collected Valparaíso Curicó provinces (Chile) relate activity antioxidant capacity presence phenolic compounds extracts. A profile based on HPLC-ESI-MS/MS allowed identification 26 compounds,...
Abstract The grape weevil, Naupactus xanthographus Germar (Coleoptera: Curculionidae), is a polyphagous insect native to southern South America that causes considerable damage in and other fruit species. In this study, the morphology ultrastructure of antennae antennal sensilla N. were investigated using scanning electron microscopy transmission microscopy. consist scape, pedicel, funicle, zone called “club,” which are all formed by total 12 antennomers. Different types observed: trichoidea,...
Cryptolaemus montrouzieri (Mulsant) (Coleoptera: Coccinellidae) is a predatory insect widely commercialized for the augmentative biological control of mealybugs (Hemiptera: Pseudococcidae). Though visual factors that guide this predator to its prey have been reported, chemical cues they may also use not well studied. In study, response C. synthetic sex pheromone two mealybug species, Pseudococcus calceolariae (Maskell) Pseudococcidae) and viburni (Signoret) Pseudococcidae), were assessed...
Abstract The secretion from the mandibular glands of males leaf‐cutting ant Atta sexdens rubropilosa is responsible for reaction workers outside nest at time sexual swarming. Workers respond with excitability and aggression when presented natural mixture 4‐methyl‐3‐heptanol 4‐methyl‐3‐heptanone, which contained in male glands. quickly to fractional amounts one equivalent. 4‐Methyl‐3‐heptanone, virgin female causes much less response workers, whereas an equimolar pheromones gives a still...
Influence of different plants substrates on development and reproduction for laboratory rearing Pseudococcus calceolariae (Maskell) (Hemiptera: Pseudococcidae).Cien.Inv.Agr.37(3): 31
This review summarizes the synthesis of pheromones published in triennium 2002-2004. The syntheses a total 66 pheromone compounds (65 from insects, 1 crustacean species), belonging to 9 different structural categories, are presented schemes. New methodologies, but also well-known reactions have been employed achieve (in many cases stereoselective) compounds. Keywords: synthesis, pheromones, species, 2002-2004, stereoselective
The main pheromone compound of Chilecomadia valdiviana (Lepidoptera: Cossidae) has been recently identified as (7Z,10Z)-7,10-hexadecadienal. biosynthesis this showing attributes both Type I and II lepidopteran pheromones was studied by the topical application isotope-labeled fatty acids to gland subsequent analysis contents (pheromone compounds acyl compounds) gas chromatography-mass spectrometry. deuterium label D11-linoleic acid incorporated into its putative precursor...
The citrophilus mealybug, Pseudococcus calceolariae (Maskell), is an important pest of fruit crops in many regions the world. Recently, its sex pheromone has been identified and synthesized. We carried out field experiments with goal developing monitoring protocols for P. using pheromone-baited traps. Traps checked hourly 24 hours showed a distinct diel pattern male flight, between 18:00 21:00 h. presence unnatural stereoisomers did not affect trap captures, isomeric mixtures capturing...