Spruce budworm defoliation and growth loss in young balsam fir: artificial defoliation of potted trees

To simulate feeding by the spruce budworm (Choristoneurafumiferana Clem.), potted, 5-year-old balsam fir (Abiesbalsamea (L.) Mill.) trees were artificially defoliated at the peak of the sixth instar period in the first 1, 2, or 3 years of a 3-year experiment. This schedule allowed trees that were de...

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Veröffentlicht in:	Canadian journal of forest research 1990-07, Vol.20 (7), p.902-909
Hauptverfasser:	Piene, H, Little, C.H.A
Format:	Artikel
Sprache:	eng
Schlagworte:	Abies balsamea Biological and medical sciences Choristoneura fumiferana container-grown plants defoliation Fundamental and applied biological sciences. Psychology growth height increment Invertebrates Phytopathology. Animal pests. Plant and forest protection Protozoa. Invertebrates Records, symptoms, damages, economic importance, population surveys volume
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