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  • 1980-1984  (2)
  • 1970-1974  (1)
  • 1915-1919
  • attractant  (2)
  • Locusta  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Ethyl nicotinate (1982)
    Springer
    Journal of chemical ecology 8 (1982), S. 1299-1303 
    Details
    ISSN: 1573-1561
    Keywords: Thrips obscuratus ; Thysanoptera ; Thripidae ; attractant ; ethyl nicotinate ; apricots ; peaches
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Ethyl nicotinate was found to be a potent attractant forThrips obscuratus in peaches and apricots. The male-to-female ratio in traps was 1∶8. The chemical was more attractive than ripe fruit, with peak catches at harvest. Season-long trapping showed the efficiency of the chemical compared to unbaited traps. The chemical remained attractive for at least 2 weeks when 50 μl were placed in open 2-ml vial caps. Various pyralids, geometrids (Lepidoptera), and chironomids (Diptera) were also attracted in low numbers to ethyl nicotinate.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00987763
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Attraction and repulsion of the aphid,Cavariella aegopodii, by Plant Odors (1981)
    Springer
    Journal of chemical ecology 7 (1981), S. 881-888 
    Details
    ISSN: 1573-1561
    Keywords: Aphid ; Cavariella aegopodii ; Homoptera ; Aphididae ; plant odor ; carvone ; attractant ; repellent ; host-finding
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Cavariella aegopodii is induced to land on traps by the monoterpene carvone, and the relevance of this to host-finding by the aphid is discussed. Catches are reduced by linalool. The interaction of plant chemicals in natural communities is discussed, and the possibility of using repellent chemicals for crop protection is suggested.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00992385
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    The structure of the terminal sensilla on the maxillary palps of Locusta migratoria (L.), and changes associated with moulting (1971)
    Springer
    Cell & tissue research 121 (1971), S. 48-68 
    Details
    ISSN: 1432-0878
    Keywords: Chemoreceptor ; Locusta ; Fine structure ; Development ; Moulting
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The basic structure of the terminal sensilla of Locusta migratoria resembles that of Schistocerca gregaria. There are commonly six or ten neurons whose dendrites extend almost to the opening of the peg. Proximally the dendrites are clothed by a neurilemma cell which also encloses a basal cavity through which their ciliary region passes. The tormogen cell encloses the receptor-lymph cavity and actively secretes material into it. The receptor-lymph cavity and the basal cavity are quite separate. The development of new pegs at a moult is described. After apolysis the scolopale extends across the subcuticular space and protects the dendrites, which remain in a functional condition until shortly before ecdysis. As the trichogen cell grows out to form a new peg the tip is surrounded by a mass of electron-dense material, probably derived from the receptorlymph cavity. The function of this material is unknown. Regeneration of the dendrites is considered. The possible mechanism by which the tip of the peg opens and closes is considered and the general structure of the organule is discussed in relation to functioning.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00330916
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    Paper (German National Licenses)
    Fulltext
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