Results 91 to 100 of about 83,124 (333)

Oviposition pheromones in insect vectors [PDF]

open access: yes, 1995
Oviposition aggregation pheromones occur in a range of insect groups including Diptera, where they mediate oviposition in four different families of disease vectors.
McCall, Philip; id_orcid   +3 more
core   +1 more source

Testosterone Acts Within the Medial Amygdala of Rats to Reduce Innate Fear to Predator Odor Akin to the Effects of Toxoplasma gondii Infection

open access: yesFrontiers in Psychiatry, 2020
Rats infected with the protozoan Toxoplasma gondii exhibit a reduced aversion to cat odor. This behavioral change is thought to increase trophic transmission of the parasite. Infected male rats also show a greater testicular synthesis of testosterone and
Dhiraj Kumar Singh   +3 more
doaj   +1 more source

Microbiome‐mediated chemical communication in insects: Implications for pest management

open access: yesPest Management Science, EarlyView.
Microbiome–semiochemical interactions involve the following processes: direct microbial synthesis, host gene regulation, precursor biotransformation, microbiome modulation and indirect ecological signaling. Abstract Insects rely on semiochemicals to regulate aggregation, mating, foraging, and host selection. This review synthesizes evidence that insect‐
Ioannis Eleftherianos   +6 more
wiley   +1 more source

Determinants of variation in the response of the aphid parasitoid Aphidius ervi to aphid sex pheromones [PDF]

open access: yes, 2008
Variation in parasitoid responses to semiochemicals may be influenced by genetics, phenotypic plasticity and the individual\u27s physiological state. Previous experimental work has indicated a high degree of variability among parasitoid individuals in ...
Kutiech, Nisreen, Kutiech, N.
core   +1 more source

Réduction des doses efficaces d'insecticides contre les larves de criquet pèlerin (Schistocerca gregaria Forskål, 1775 : Orthoptera, Acrididae) par utilisation de quantités réduites de phénylacétonitrile

open access: yesBiotechnologie, Agronomie, Société et Environnement, 2013
Reduction of effective doses of insecticide against desert locust (Schistocerca gregaria Forskål, 1775: Orthoptera, Acrididae) nymphs using phenylacetonitrile. In order to reduce the amount of insecticides used during a locust upsurge, phenylacetonitrile
Bocar Bal, A., Sidati, SM.
doaj  

Semiokimia dan volatil lain pada Cheilomenes sexmaculata (Fabricius) (Coleoptera: Coccinellidae) yang memangsa Aphis gossypii Glover (Hemiptera: Aphididae) pada tanaman cabai

open access: yesJurnal Entomologi Indonesia
Cheilomenes sexmaculata (Fabricius) is a potential natural enemy of aphids. Various aspects of the ecology and biology of this predator have been studied; however, there is still limited information on its physiology, particularly regarding pheromones ...
Siska Efendi   +3 more
doaj   +1 more source

PCR‐based species identification tools for wireworms (Coleoptera: Elateridae) of economic importance in Canada

open access: yesPest Management Science, EarlyView.
Species‐specific PCR primers and PCR‐based assays were designed for the identification of 15 economically important and difficult to distinguish wireworm pests in Canada. PCR specificity testing and performance assessments confirm the accuracy of the assays.
Kathleen Furtado   +5 more
wiley   +1 more source

Effect of Pig Synthetic Pheromones and Positive Handling of Pregnant Sows on the Productivity of Nursery Pigs

open access: yesVeterinary Sciences
Weaning is one of the most important stress events in the life of pigs, increasing the risk for health problems and reduced performance. The release of pheromones in pig stables can be considered an environmental enrichment and alleviate the negative ...
Dimitri De Meyer   +3 more
doaj   +1 more source

HONEY BEE COLONY PHEROMONES [PDF]

open access: yesJournal of Central European Agriculture, 2001
Pheromones are chemicals produced as liquids by specialised cells or glands and transmitted into the environment as liquids or gases. In contrary to hormones, which are excreted in organism and have effect exclusively on organism that produced them ...
M Dražić, N Kezić
doaj  

3-Acetoxy-fatty acid isoprenyl esters from androconia of the ithomiine butterfly Ithomia salapia

open access: yesBeilstein Journal of Organic Chemistry, 2020
Male ithomiine butterflies (Nymphalidae: Danainae) have hairpencils on the forewings (i.e., androconia) that disseminate semiochemicals during courtship.
Florian Mann   +5 more
doaj   +1 more source

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