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The impact of the aphids Tuberolachnus salignus and Pterocomma salicis on willow trees
Author(s) -
COLLINS C MATILDA,
ROSADO RUI G,
LEATHER SIMON R
Publication year - 2001
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.2001.tb00095.x
Subject(s) - biology , willow , infestation , shoot , aphid , phenology , botany , horticulture , woody plant , agronomy
Summary The effect of two species of stem‐feeding aphid on the yield, phenology and water‐use of soil‐grown and hydroponic‐cultured willow were investigated. The effects of Pterocomma salicis were less marked than those of Tuberolachnus salignus. The latter reduced not only the above and below‐ground growth of trees made during and subsequent to infestation, but also altered the mass of previously developed woody tissue. The negative effects of T. salignus on the shoots and roots of established and establishing trees were drastic and were both quantitative and qualitative. They were also observed to reduce the survival of infested trees. P. salicis had negative effects on the growth of roots and shoots during infestation, but the influence of this species did not persist nor did it influence previous growth.