Zobrazeno 1 - 5
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pro vyhledávání: '"M. V. Seco"'
Publikováno v:
Spanish Journal of Agricultural Research, Vol 11, Iss 2, Pp 505-517 (2013)
The hop aphid Phorodon humuli (Schrank) (Hemiptera: Aphididae) is a serious pest in most areas where hops are grown. A field trial was performed on a hop yard throughout 2002, 2003 and 2004 in León (Spain) in order to analyse the population developm
Externí odkaz:
https://doaj.org/article/b0bb0cf8068948cc95575bc21f34e072
Publikováno v:
Crop Protection. 29:832-837
The price of hops in Spain is given per kilogram of dry product and according to their content of alpha-acids. If any aphids are noted inside cones there is a penalty of up to 10% of the dry weight. Experiments were performed in a hop garden in 2002,
Publikováno v:
Scopus-Elsevier
The hop aphid, Phorodon humuli (Schrank), is one of the main hop, Humulus lupulus L. (Cannabaceae), pests in the world. The aim of this work was to determine (1) the yield loss function in hops based on the pest density of P. humuli, (2) and the econ
Publikováno v:
The Journal of Horticultural Science and Biotechnology. 80:689-692
SummaryEconomic thresholds of intervention against the hop aphid, Phorodon humuli, can be expressed using different parameters. Some of these parameters are calculated using measurements which are not easy to record directly, but which can be obtaine
Publikováno v:
Spanish Journal of Agricultural Research, Vol 11, Iss 2, Pp 505-517 (2013)
Spanish Journal of Agricultural Research; Vol. 11 No. 2 (2013); 505-517
Spanish Journal of Agricultural Research; Vol. 11 Núm. 2 (2013); 505-517
SJAR. Spanish Journal of Agricultural Research
instname
Spanish Journal of Agricultural Research; Vol 11, No 2 (2013); 505-517
Spanish Journal of Agricultural Research; Vol. 11 No. 2 (2013); 505-517
Spanish Journal of Agricultural Research; Vol. 11 Núm. 2 (2013); 505-517
SJAR. Spanish Journal of Agricultural Research
instname
Spanish Journal of Agricultural Research; Vol 11, No 2 (2013); 505-517
The hop aphid Phorodon humuli (Schrank) (Hemiptera: Aphididae) is a serious pest in most areas where hops are grown. A field trial was performed on a hop yard throughout 2002, 2003 and 2004 in León (Spain) in order to analyse the population developm