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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Insectes sociaux 17 (1970), S. 1-10 
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Zusammenfassung In natürlichen Kolonien vonBombus agrorum undB. hortorum ging der Bau des ersten Brutklumpens dem des Honignapfes voraus. In diesen, und anderen Arten, wurden keine richtigen Waschseizellen gebaut, aber es wurden charakteristische wachsbedeckte Brutklumpen, welche die Eier und den Pollen enthalten, angelegt. In natürlichen Kolonien vonB. agrorum, B. humilis, B. pratorum undB. hortorum wurden die Eier des ersten Brutklumpens in vertikaler Position gelegt.B. hortorum Königinnen legten ihre Eier in den Pollenklumpen, während inB. agrorum, B. humilis undB. pratorum die Eier dem Pollenklumpen angelegt wurden. In laborgezüchteten Kolonien wurden die Eier horizontal und oft in richtige Wachseizellen gelegt. Die Reihenfolge der Nestanlage in gefangengehaltenen Königinnen entsprach nicht immer den Beobachtungen an Kolonien derselben Arten in der Natur. NatürlicheB. agrorum undB. humilis Kolonien hatten eine typische Anordnung von 8 Eiern. Larven oder Puppen in eine mittlere Reihe von 2, und zwei seitliche Reihen von je 3 Individuen.B. hortorum war produktiver, gewöhnlich mit 11–16 Individuen in einem Klumpen, aber es konnte keine bestimmte Anordnung der Eier, Larven oder Puppen innerhalb des Brutklumpens festgelegt werden. Keine der Arten wies eine hone Sterblichkeitsrate in der Entwicklung der ersten Brut auf.
    Notes: Summary In wild colonies ofBombus agrorum andB. hortorum initiation of the incipient brood clump preceded that of the honey-pot. In these, and other species, actual wax egg cells were not constructed but characteristic waxcovered brood clumps, containing eggs and pollen, were produced. Eggs of the first brood batch in natural colonies ofB. agrorum, B. humilis, B. pratorum andB. hortorum were deposited vertically.B. hortorum queens laid their eggs within the pollen lump, but inB. agrorum, B. humilis andB. pratorum, eggs were deposited against the pollen lump. In laboratory-initiated colonies, eggs were laid horizontally, often in actual wax egg cells. The order of colony initiation by captive queens did not always conform to that observed for the same species in the wild. In naturalB. agrorum andB. humilis colonies the arrangement of 8 eggs, larvae or pupae into a central row of 2 individuals, and two lateral rows of 3 individuals each, was typical.B. hortorum was more prolific, there usually being from 11 to 16 individuals in a brood clump, but no definite arrangement of eggs, larvae or pupae within brood clumps of this species was established. High brood mortality rates were not characteristic of the incipient stages of colony development in any species.
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Plant pathology 28 (1979), S. 0 
    ISSN: 1365-3059
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Plant pathology 27 (1978), S. 0 
    ISSN: 1365-3059
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Observations in cherry and plum orchards in England confirm that, as on the continent of Europe, Argyresthia pruniella (Clerck) and not A. curvella (L.) is associated with these crops. The pest status of A. curvella on cherry, therefore, should no longer apply and in its place A. pruniella should be designated the cherry fruit moth.
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  • 4
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Plant pathology 21 (1972), S. 0 
    ISSN: 1365-3059
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Both in experimental plots and on a field scale in East Anglia better control of Tarsonemus fragariae Zimm. was achieved by application of endosulfan when strawberry plants (cv. Cambridge Favourite) had previously been mown off after harvest. Therefore, where this pest is a problem removal of foliage before spraying should prove beneficial.
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  • 5
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Plant pathology 20 (1971), S. 0 
    ISSN: 1365-3059
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: As a result of nomenclatorial changes both the cocksfoot moth (Glyphipterix simpliciella (Steph.)) and the diamond-back moth (Plutella xylostella (L.)) are liable to be confused with other tineid species. To avoid this confusion, some details and illustrations are given of the species concerned.
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  • 6
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Plant pathology 29 (1980), S. 0 
    ISSN: 1365-3059
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
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  • 7
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Plant pathology 28 (1979), S. 0 
    ISSN: 1365-3059
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Experiments in eastern England in 1975, 1977 and 1978 confirmed that endosulfan was an effective alternative to endrin for control of blackberry mite, Acalitus essigi (Hassan) (Acari: Eriophyidae), a cause of uneven ripening (‘redberry’) of blackberries. Three pre-flowering sprays of 0 05 or 0–1 per cent endosulfan, applied at about 14-day intervals, reduced the incidence of ‘redberry’ to an acceptable level; two sprays about four weeks apart were generally less effective. Endosulfan residues in fruits at harvest were below detectable levels. Carbaryl, chlorpyrifos, dicofol, vamidothion and ZR-856 were not effective when tested in a preliminary trial in 1975.
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  • 8
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Plant pathology 24 (1975), S. 0 
    ISSN: 1365-3059
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Examination of the feeding preferences of tortricid larvae attacking strawberry plants in eastern England during the main pre-harvest blossom periods of 1972 and 1973 indicated that most larvae (85–6 per cent) of Acleris comariana (Lienig & Zell.) fed on foliage rather than on flowers or developing jfruitlets. However, this was not true for Clepsis spectrana (Treits.) (87–7 per cent on flowers), Olethreutes lacunana (Denis & Schiif.) (77–6 per cent on flowers) and Cnephasia interjectana (Haw.) (98–5 per cent on flowers). At densities of up to 12–5/m2, larvae of A. comariana had no observable effect on strawberry yields. Neither fruit quality nor quantity was correlated with pest (larval) numbers. The possible economic importance of A. comariana is considered in the light of these results and in comparison with published data for more directly damaging tortrix species. The role of the parasite Litomastix aretas (Wlk.) in controlling A. comariarm populations in East Anglia is also discussed.
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  • 9
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Plant pathology 23 (1974), S. 0 
    ISSN: 1365-3059
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Significantly more eggs of Acleris comariana (Lienig and Zeller) were laid on the lower than on the upper surface of strawberry leaves (cv. Cambridge Favourite); most were found on the proximal half of the leaflets. Eggs were only noted on leaf laminae; none was found on petioles, stipules or stolons. Eggs were located on plants of all sizes, from well-established mother plants to young runners, but most frequently occurred on older plants and on inedium-sized leaves.
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  • 10
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Plant pathology 23 (1974), S. 0 
    ISSN: 1365-3059
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Type of Medium: Electronic Resource
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