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Auteur J. Bale |
Documents disponibles écrits par cet auteur (9)
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K. Ponder ; J. Pritchard ; R. Harrington ; J. Bale | 2000Effects of nitrogen deficiency in hydroponically grown barley seedlings (Hordeum vulgare L.) on the development and reproduction of the aphid Rhopalosiphum padi (L.) (Hemiptera: Aphididae) were investigated. Plant growth was significantly reduce[...]article/chapitre/communication
J. Mcdonald ; J. Bale ; K. Walters | 1998The development of the Western Flower Thrips (Frankliniella occidentalis Pergande; Thysanoptera: Thripidae) was studied at six temperatures between 10 and 35 degrees C. Developmental rate increased linearly as rearing temperature increased. It w[...]article/chapitre/communication
G. Howling ; J. Bale ; R. Harrington | 19941. The survival of adult and first-instar Myzus persicae reared at 20-degrees-C and 10-degrees-C was investigated after brief (1 min) exposure in the absence of plant material to temperatures between -5-degrees-C and -25-degrees-C, and extended[...]article/chapitre/communication
K. Ponder ; J. Pritchard ; R. Harrington ; J. Bale | 2001Electrical penetration graphs (EPGs) were used to examine the probing behaviour of adult apterous Rhopalosiphum padi (Linnaeus) on barley seedlings grown under conditions of nitrogen or water stress. Aphids took significantly longer to reach and[...]article/chapitre/communication
J. Mcdonald ; J. Bale ; K. Walters | 1997The UK glasshouses in which the western flower thrips Frankliniella occidentalis (Pergande) is prevalent offer protection from adverse winter conditions. As such, F. occidentalis may not have been exposed to selection for cold tolerance that wou[...]ouvrage
S. Leather, - Auteur ; K. Walters, - Auteur ; J. Bale | Cambridge [GBR] : *** Cambridge University Press | 1993ouvrage
Ce livre est une synthèse des connaissances de l'hivernage des insectes et des adaptations qu'ils mettent en oeuvre pour leur survie à différents stades pendant l'hiver. Les aspects adaptatifs, biologiques, ecophysiologiques et métaboliques déve[...]article/chapitre/communication
G. Howling ; R. Harrington ; S. Clark ; J. Bale | 1993The Rothamsted Insect Survey has kept records of aerial aphid activity using suction traps since 1965. Previous work has shown that, for certain species, there is a linear relationship between the date of first record in the trap each year and t[...]article/chapitre/communication
C. Doeringsaad ; H. Newbury ; J. Bale ; J. Pritchard | 2002Unmodified samples of barley (Hordeum vulgare) sieve tube sap have been obtained by severing the stylets (stylectomy) of feeding aphids and collecting the exuding liquid. Primers were designed to direct the amplification of a series of specific [...]