Výsledky vyhledávání - "J. W. Brewer"

Evaluation of plant damage caused by three species of gall midges (Diptera: Cecidomyiidae)

Autor: M. Skuhravá, V. Skuhravý, J. W. Brewer

Publikováno v: Zeitschrift für Angewandte Entomologie. 90:184-190

Plant tissue weight, and levels of major chemical elements, were determined for leaves attacked by three species of gall forming Cecidomyiidae, and comparable tissue from normal leaves. Weight of leaves was directly related to the number of galls cau

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::84075b481fb3ad397d7c882c23eaa4c4
https://doi.org/10.1111/j.1439-0418.1980.tb03517.x

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Observations on insect pollinators of Lycopersicon peruvianum and L. esculentum in relation to the production of F1 hybrid tomato seed

Autor: D. W. Denna, J. W. Brewer

Publikováno v: Zeitschrift für Angewandte Entomologie. 90:314-319

Bombus griseocollis (DeGreer) was found to be the most common visitor to flowers of Lycopersicon peruvianum at Fort Collins (Larimer County) Colorado. Five other species of Bombus were less frequently observed on the flowers along with an occasional

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f5147af6394a4e02ab0f9cc1a94a1073
https://doi.org/10.1111/j.1439-0418.1980.tb03532.x

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Starch and sugar levels in three coniferous insect galls

Autor: J. W. Brewer, R. E. Shannon

Publikováno v: Zeitschrift für Angewandte Entomologie. 89:526-533

Starch, reducing, and non-reducing sugar levels were determined for three coniferous insect galls and compared with levels in normal tissue. Reducing sugar levels in tissue from two galls caused by Cecidomyiidae were significantly higher than those f

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::03ff917e300bb3892828aaf904cbac30
https://doi.org/10.1111/j.1439-0418.1980.tb03494.x

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Biology of Janetiella coloradensis Felt, a needle gall midge on Pinus edulis Engelm

Autor: Carol Gillet, J. W. Brewer

Publikováno v: Zeitschrift für Angewandte Entomologie. 95:326-335

Janetiella coloradensis Felt (Diptera: Cecidomyiidae) causes severe needle shortening on pinyon, Pinus edulis Engelm. Infested needles are about one-third normal length, with swollen bases and enlarged fascicle sheaths. Needle drop occurs after the n

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e8d0659858698a30548a8ebda953fe8c
https://doi.org/10.1111/j.1439-0418.1983.tb02651.x

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Susceptibility of Buxus spp. to attacks of Monarthropalpus buxi (Dipt., Cecidomyiidae) under experimental conditions

Autor: V. Skuhravý, J. W. Brewer

Publikováno v: Zeitschrift für Angewandte Entomologie. 90:396-400

Three species of Boxwood, Buxus bullata, B. nana and B. sempervirens were exposed to the Boxwood gall midge, Monarthropalpus buxi (Lab.) at three time periods in an attempt to artificially infest the plants and determine differences in plant species

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::086e2f791bfdbbe9c1f566fadd6bb524
https://doi.org/10.1111/j.1439-0418.1980.tb03544.x

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Suitability of Some Southern and Western Pines as Hosts for the Pine Shoot Beetle, Tomicus piniperda (Coleoptera: Scolytidae)

Autor: T. A. Eager, C. W. Berisford, M. J. Dalusky, D. G. Nielsen, J. W. Brewer, S. J. Hilty, R. A. Haack

Publikováno v: Journal of Economic Entomology. 97:460-467

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6ed681fc4f3debf254a679b483610a52
https://doi.org/10.1093/jee/97.2.460

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Suitability of Some Southern and Western Pines as Hosts for the Pine Shoot Beetle, Tomicus piniperda (Coleoptera: Scolytidae)

Autor: Robert A. Haack, S. J. Hilty, D. G. Nielsen, Mark J. Dalusky, C. W. Berisford, J. W. Brewer, T. A. Eager

Publikováno v: Journal of Economic Entomology. 97:460-467

The pine shoot beetle, Tomicus piniperda (L.), is an exotic pest that has become established in North America. Discovered in Ohio in 1992, it has since been found in at least 13 states and parts of Canada. The beetle can cause significant growth loss

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7250bc7d55140c06d5c81682416e3cfe
https://doi.org/10.1603/0022-0493-97.2.460

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Secretion of soluble pre-B cell receptors by pre-B cells

Autor: K D Bornemann, J W Brewer, E Perez, S Doerre, R Sita, R B Corley

Publikováno v: The Journal of Immunology. 158:2551-2557

Pre-B cells can express secretory mu (mu(s))- as well as membrane mu (mu(m))-chains. We evaluated the ability of mu(s)-chains to associate with surrogate light chains and assemble into a pre-B cell receptor (BCR) complex in pre-B cells, and explored

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f7dfdb47ac8aede156941d574e32cda8
https://doi.org/10.4049/jimmunol.158.6.2551

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Gall midges (Dipt., Cecidomyiidae) associated withPopulus tremula, P. tremuloidesand their hybrid (Salicaceae)

Autor: M. Skuhravá, V. Skuhravý, J. W. Brewer

Publikováno v: Journal of Applied Entomology. 121:315-320

Galls caused by seven species of European cecidomyiids were found on leaves of Populus tremula, native to Europe, on P. tremuloides, native to North America, and on leaves of their hybrids planted in southern Bohemia. Some galls on hybrids had unusua

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9bce6b3329b56bed926e22f4e98fccf9
https://doi.org/10.1111/j.1439-0418.1997.tb01412.x

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