Zobrazeno 1 - 10 of 50 pro vyhledávání: '"O.R.W. Sutherland"'
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Effect of lucerne saponins and Lotus condensed tannins on survival of grass grub,Costelytra zealandica
Autor: R. F. N. Hutchins, O.R.W. Sutherland, W. J. Greenfield
Publikováno v: New Zealand Journal of Zoology. 9:511-514
Crude extracts of lucerne (Medicago sativa) and Lotus pedunculatus root were toxic when administered orally to third-instar Costelytra zealandica larvae. Purified saponins from lucerne root were alone found sufficiently toxic to account fully for the
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::aad81f95c5a1fa5a43b3f26474d7b89e
https://doi.org/10.1080/03014223.1982.10423882
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5
An intrinsic factor influencing alate production by two strains of the pea aphid, Acyrthosiphon pisum
Autor: O.R.W. Sutherland
Publikováno v: Journal of Insect Physiology. 16:1349-1354
Alate virginoparae of a pink and a green strain of pea aphid and both first-born and last-born representatives of several successive generations of their apterous descendants were exposed to a standard crowding treatment in order to determine whether
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5abdeea7cc6da77cfa8866362cb07c50
https://doi.org/10.1016/0022-1910(70)90134-4
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6
Attraction of newly hatched codling moth larvae (Laspeyresia pomonella) to synthetic stereo-isomers of farnesene
Autor: O.R.W. Sutherland, R.F.N. Hutchins
Publikováno v: Journal of Insect Physiology. 19:723-727
Newly hatched Laspeyresia pomonella larvae were attracted to only two of six synthetic stereo-isomers of the acyclic sesquiterpene farnesene. These were ( E,E )-α-farnesene and ( Z,E )-α-farnesene which together comprise a natural attractant for th
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::28e305067ba3b280b099f9d5bfd7fb8b
https://doi.org/10.1016/0022-1910(73)90080-2
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8
The role of crowding in the production of winged forms by two strains of the pea aphid, Acyrthosiphon pisum
Autor: O.R.W. Sutherland
Publikováno v: Journal of Insect Physiology. 15:1385-1410
Apterous females of both strains of Acyrthosiphon pisum responded to being crowded by including some alate daughters in their progenies. Females of the pink strain produced many more alate offspring in response to this stimulus than did the green for
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7087e116e020d6c6e7fb22f9bc703c7f
https://doi.org/10.1016/0022-1910(69)90199-1
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9
Influence of diet composition and crowding on wing production by the aphid Myzus persicae
Autor: O.R.W. Sutherland, T. E. Mittler
Publikováno v: Journal of Insect Physiology. 17:321-328
Two factors have been shown to affect alata-production in a Californian strain of Myzus persicae. Contact between adult apterous females increases the proportion of alatae in their progenies as, to a lesser extent, does contact between the larvae the
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ef84a6d0476969edfb23a96e19887cd1
https://doi.org/10.1016/0022-1910(71)90216-2
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10
The rôle of the host plant in the production of winged forms by two strains of the pea aphid, Acyrthosiphon pisum
Autor: O.R.W. Sutherland
Publikováno v: Journal of Insect Physiology. 15:2179-2201
Aphids of both strains of Acyrthosiphon pisum can produce alate daughters after experiencing a controlled period of contact with other aphids. This response is maternal, embryos being irrevocably determined as apterae or alatae very shortly before bi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f9e10bfd4d7eebfaf152e7ec647b7420
https://doi.org/10.1016/0022-1910(69)90083-3
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