Host selection byBlepharipa pratensis (Meigen), a tachinid parasite of the gypsy moth,Lymantria dispar L.

abstract：:This study was replicated at two locations in the mountains of central Utah. In 1997, ten uniform plants of tall larkspur (Delphinium barbeyi) in the early bud stage (40 cm in height) were selected at each site and clipped at 5 cm above soil level. In 1998, one stalk from each plant was harvested on a weekly basis; in...

journal_title：Journal of chemical ecology

authors： Ralphs MH,Gardner DR

更新日期：2001-01-01 00:00:00

abstract：:Sasa (Sasa cernua Makino) is a very serious weed pest. Its allelopathy was studied using lettuce, wheat, timothy, and green amaranth as testing species. Cultured in the rhizosphere soil ofSasa cernua, the seedlings were inhibited by 42-80% compared with the controls cultured in normal soil and vermiculite. The phenoli...

journal_title：Journal of chemical ecology

authors： Li HH,Nishimura H,Hasegawa K,Mizutani J

更新日期：1992-10-01 00:00:00

abstract：:Phytotoxicity-directed extraction and fractionation of the aerial parts of Mikania micrantha H.B.K. led to the isolation and identification of three sesquiterpenoids: dihydromikanolide, deoxymikanolide, and 2,3-epoxy-1-hydroxy-4,9-germacradiene-12,8:15,6-diolide. These sesquiterpenoids inhibited both germination and s...

journal_title：Journal of chemical ecology

authors： Shao H,Peng S,Wei X,Zhang D,Zhang C

更新日期：2005-07-01 00:00:00

abstract：:The pheromone-mediated flight and landing behaviors of maleOstrinia nubilalis were studied in a wind tunnel. The pheromone source was placed in the middle of an 18 × 18-cm horizontal surface, and a smaller surface placed 4, 18, or 36 cm downwind. The smaller surface did not appear to affect significantly the flight tr...

journal_title：Journal of chemical ecology

authors： Foster SP,Frérot B

更新日期：1994-09-01 00:00:00

abstract：:Populations ofAedes sierrensis (Ludlow) completed development in tannic acid solutions over a wide concentration range (i.e., 0-1.0 g/liter) in artificial microcosms exposed to field conditions. The most notable effects of high tannic acid concentration were to slow larval developmental rates and to reduce numbers of ...

journal_title：Journal of chemical ecology

authors： Mercer DR

更新日期：1993-06-01 00:00:00

abstract：:Preadult exposure to carbaryl affected the subsequent behavior of two-spotted spider mites (Tetranychus urticae Koch) on leaf surfaces with discontinuous acaricide residues. In dicofol bioassays, preexposure to carbaryl caused a loss of avoidance behavior (eliminating the tendency of mites to feed and stand longer off...

journal_title：Journal of chemical ecology

authors： Dombrowski JA,Kolmes SA,Dennehy TJ

更新日期：1994-01-01 00:00:00

abstract：:The effects of differential leaf water, leaf nitrogen and cyclic hydroxamate (DIMBOA) concentrations in corn seedlings were analyzed for a polyphagous insect, the southern armyworm (Spodoptera eridania Cram.). Six different combinations of nutrients and allelochemicals [DIMBOA = 2,4-dihydroxy-7-methoxy(2H)-benzoxazin-...

journal_title：Journal of chemical ecology

authors： Manuwoto S,Scriber JM

更新日期：1985-11-01 00:00:00

abstract：:Prior electrophoretic and morphological studies have identified two closely related, economically important tephritid flies,R. mendax (Curran) andR. pomonella (Walsh), which infest the fruits of ericaceous and rosaceous plants, respectively. Further studies also have shown consistent differences among these species in...

journal_title：Journal of chemical ecology

authors： Frey JE,Bierbaum TJ,Bush GL

更新日期：1992-11-01 00:00:00

abstract：:We report the identification, synthesis, and field bioassays of a volatile, male-produced aggregation pheromone of a long-horned beetle, the banded alder borer, Rosalia funebris Mots. Headspace collections from males contained a major male-specific compound, (Z)-3-decenyl (E)-2-hexenoate, and several minor components,...

journal_title：Journal of chemical ecology

authors： Ray AM,Millar JG,McElfresh JS,Swift IP,Barbour JD,Hanks LM

更新日期：2009-01-01 00:00:00

abstract：:The identification of pheromones and chemicals that may inhibit or stimulate growth and reproduction necessarily leads to the consideration of biochemical methods to isolate and characterize these molecules. Analysis ofSchistosoma mansoni surface antigens by direct radioiodination, metabolic labeling with tritiated an...

journal_title：Journal of chemical ecology

authors： Hayunga EG,Sumner MP

更新日期：1986-08-01 00:00:00

abstract：:It is well established that plants infested with a single herbivore species can attract specific natural enemies through the emission of herbivore-induced volatiles. However, it is less clear what happens when plants are simultaneously attacked by more than one species. We analyzed volatile emissions of lima bean and ...

journal_title：Journal of chemical ecology

authors： de Boer JG,Hordijk CA,Posthumus MA,Dicke M

更新日期：2008-03-01 00:00:00

abstract：:Evidence is presented indicating the presence of the tick sex pheromone, 2,6-dichlorophenol in lipid droplets in the foveal glands ofDermacentor variabilis (Say) andDermacentor andersoni Stiles. The pheromone appears to be dissolved in the lipid droplets. The droplets consist of neutral lipids, mostly triacylglyceride...

journal_title：Journal of chemical ecology

authors： Sonenshine DE,Gainsburg DM,Rosenthal MD,Silverstein RM

更新日期：1981-03-01 00:00:00

abstract：:Previous studies have shown that menstrual cycle length and fertility are affected by a regular pattern of either: (1) intimate contact with men; or (2) contact with extracts from male axillary secretions; and (3) the axillary extracts of women. Experiments utilizing axillary extracts employed a controlled, double-bli...

journal_title：Journal of chemical ecology

authors： Preti G,Cutler WB,Christensen CM,Lawley H,Huggins GR,Garcia CR

更新日期：1987-04-01 00:00:00

abstract：:Interdigital secretions were collected from eight male white-tailed deer of various ages. Analysis of volatiles was performed by gas chromatography-mass spectrometry with a modified headspace technique. Forty-six volatile compounds were found including alkanes, arenes, aldehydes, ketones, aliphatic acids, esters, pyrr...

journal_title：Journal of chemical ecology

authors： Gassett JW,Wiesler DP,Baker AG,Osborn DA,Miller KV,Marchinton RL,Novotny M

更新日期：1996-09-01 00:00:00

abstract：:Extracts of Paranemastoma quadripunctatum (Opiliones, Dyspnoi, Nemastomatidae) contained seven components, all of which likely originated from the secretion of well-developed prosomal scent glands. The two main components (together accounting for more than 90% of the secretion) were identified as 1,4-naphthoquinone an...

journal_title：Journal of chemical ecology

authors： Raspotnig G,Leutgeb V,Schaider M,Komposch C

更新日期：2010-02-01 00:00:00

abstract：:Most snakes and lizards produce eggs with flexible shells that interact with the environment to maintain water balance. Geckos produce rigid eggshells that are independent of an external source of water and can be oviposited in more open, dryer locations. In this study, we analyzed and compared the amino acid composit...

journal_title：Journal of chemical ecology

authors： Sexton OJ,Bramble JE,Heisler IL,Phillips CA,Cox DL

更新日期：2005-10-01 00:00:00

abstract：:Maize, a genetically diverse crop, is the domesticated descendent of its wild ancestor, teosinte. Recently, we have shown that certain maize landraces possess a valuable indirect defense trait not present in commercial hybrids. Plants of these landraces release herbivore-induced plant volatiles (HIPVs) that attract bo...

journal_title：Journal of chemical ecology

authors： Mutyambai DM,Bruce TJ,Midega CA,Woodcock CM,Caulfield JC,Van Den Berg J,Pickett JA,Khan ZR

更新日期：2015-04-01 00:00:00

abstract：:Rapid changes in the Earth's atmosphere and climate associated with human activity can have significant impacts on agriculture including livestock production. CO2 concentration has risen from the industrial revolution to the current time, and is expected to continue to rise. Climatic changes alter physiological proces...

journal_title：Journal of chemical ecology

authors： Cook D,Gardner DR,Pfister JA,Stonecipher CA,Robins JG,Morgan JA

更新日期：2017-03-01 00:00:00

abstract：:The raspberry cane midge, Resseliella theobaldi, is a widespread pest of cultivated red raspberry in Europe. Pheromone-baited traps could provide a much-needed, accurate means to monitor the pest. Volatiles collected separately from virgin female and male midges were analyzed by gas chromatography (GC) coupled to mass...

journal_title：Journal of chemical ecology

authors： Hall DR,Farman DI,Cross JV,Pope TW,Ando T,Yamamoto M

更新日期：2009-02-01 00:00:00

abstract：:This work reports the development and use of techniques for characterizing volatile chemicals emitted by the multicolored Asian lady beetle, Harmonia axyridis (Pallas) (Coleoptera: Coccinellidae), in an effort to identify the semiochemicals involved in establishment and persistence of overwintering beetle aggregations...

journal_title：Journal of chemical ecology

authors： Brown AE,Riddick EW,Aldrich JR,Holmes WE

更新日期：2006-11-01 00:00:00

abstract：:The pattern of variation in gross cardenolide concentration of 111Asclepias speciosa plants collected in six different areas of California is a positively skewed distribution which ranges from 19 to 344 μg of cardenolide per 0.1 g dry weight with a mean of 90 μg per 0.1 g. Butterflies reared individually on these plan...

journal_title：Journal of chemical ecology

authors： Brower LP,Seiber JN,Nelson CJ,Lynch SP,Holland MM

更新日期：1984-04-01 00:00:00

abstract：:The symbiotic fungus Amylostereum areolatum is essential for growth and development of larvae of the invasive woodwasp, Sirex noctilio. In the nutrient poor xylem of pine trees, upon which Sirex feeds, it is unknown whether Amylostereum facilitates survival directly through consumption (mycetophagy) and/or indirectly ...

journal_title：Journal of chemical ecology

authors： Thompson BM,Grebenok RJ,Behmer ST,Gruner DS

更新日期：2013-01-01 00:00:00

abstract：:Oxidative responses of plants to pathogens and other environmental stresses have received considerable recent attention. We propose that an oxidative response also occurs following attack by herbivores. Our data strongly indicate a shift in the oxidative status of soybean following herbivory by the insectHelicoverpa z...

journal_title：Journal of chemical ecology

authors： Bi JL,Felton GW

更新日期：1995-10-01 00:00:00

abstract：:Bioassays in a Y-tube olfactometer showed that workers of Solenopsis geminata (Hymenoptera: Formicidae) were attracted to venom gland extracts of queens. Gas chromatography coupled mass spectrometry analysis of individual glands of queens of S. geminata showed that the secretion is composed mainly of a large amount of...

journal_title：Journal of chemical ecology

authors： Cruz-López L,Rojas JC,De La Cruz-Cordero R,Morgan ED

更新日期：2001-12-01 00:00:00

abstract：:Locoweeds are Astragalus and Oxytropis species that contain the toxic alkaloid swainsonine. Swainsonine accumulates in all parts of the plant with the highest concentrations found in the above ground parts. A fungal endophyte, Undifilum oxytropis, found in locoweed plant species, is responsible for the synthesis of sw...

journal_title：Journal of chemical ecology

authors： Cook D,Gardner DR,Ralphs MH,Pfister JA,Welch KD,Green BT

更新日期：2009-10-01 00:00:00

abstract：:The alfalfa seed chalcid (ASC),Bruchophagus roddi, is a monophagous pest of alfalfa that parasitizes developing seeds. To further understand the olfactory basis of host-plant recognition by ASCs, we recorded electroantennograms (EAGs) from females and males to 39 volatiles from both alfalfa and red clover. The chemore...

journal_title：Journal of chemical ecology

authors： Light DM,Kamm JA,Buttery RG

更新日期：1992-03-01 00:00:00

abstract：:Seven volatile compounds identified from the headspace of whole wheat bread dough were investigated for their role in attractingGlischrochilus quadrisignatus andG. fasciatus in the field. Traps baited with either whole wheat bread dough or a synthetic seven-component bread dough odor caught similar numbers of these be...

journal_title：Journal of chemical ecology

authors： Lin H,Phelan PL

更新日期：1991-12-01 00:00:00

abstract：:Egg deposition by the Large Cabbage White butterfly Pieris brassicae on Brussels sprouts plants induces indirect defense by changing the leaf surface, which arrests the egg parasitoid Trichogramma brassicae. Previous studies revealed that this indirect defense response is elicited by benzyl cyanide (BC), which is pres...

journal_title：Journal of chemical ecology

authors： Blenn B,Bandoly M,Küffner A,Otte T,Geiselhardt S,Fatouros NE,Hilker M

更新日期：2012-07-01 00:00:00

abstract：:Volatile lipids from the mandibular gland secretions of bees (Hymenoptera: Apoidea) are potent olfactory repellents of foraging ants (Formica, Crematogaster) in biologically relevant contexts and quantities. In contrast, differential success in capture of bee and fly prey by predatory asilid flies (Efferia), reduviid ...

journal_title：Journal of chemical ecology

authors： Cane JH

更新日期：1986-06-01 00:00:00

abstract：:(Z)-5-Tetradecenyl acetate and tetradecyl acetate were identified as sex pheromone components of an unnamedPlanotortrix leafroller moth species found onAvicennia resinifera (mangrove). An equal mixture of the two compounds used as bait gave field trap catches at least as good as those baited with caged virgin females....

journal_title：Journal of chemical ecology

authors： Foster SP,Clearwater JR,Roelofs WL

更新日期：1987-03-01 00:00:00