Page 47 - Tạp chí bonsai cây cảnh BCI 2013Q3
P. 47
Tips for maintaining a Juniperus communis
Expose to full sun throughout the year.
Use very porous soils with little water retention
(Akadama grain sizes from 4 mm to 8 mm) that
allows frequent watering without risk of waterlog-
ging.
Fertilize frequently during their growth cycle with
both organic solids for the soil and organic liquids
for the foliage.
Diseases: root rot is the only disease that can lead
to death of the plant (use antagonistic mycor-
rhizae or broad-spectrum fungicide), sporadically
scale insects are a problem on the small interior
branches that get less sun or if you keep the plant
in the shade (use contact insecticide). The gray
aphid very rarely (use systemic insecticide). Spo-
radic attacks of bark beetles on weakened plants
(use phosphate ester based insecticides).
July/August/September 2013 | BCI | 45
