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In the spirit of the identification of white spots on bonsai recent weeks, the issue today is the western juniper.
For those unfamiliar with the variety, western junipers are often covered with white spots, one for each scale. Sometimes, the points are enlarged and are joined together to form a sticky white mass.
sticky white substance on the western juniper foliage
Unlike white dots caused by different insects that we’ve seen recently, white on Western juniper is a resin secreted by the foliage. Working in western juniper can quickly lead to sticky, dirty fingers, but the resin is natural and not a sign of infestation.
Resin accumulation of western juniper foliage
Sometimes, this resin becomes black. This can be either the dust from sticking to the white resin or a non harmful fungus growing on juniper foliage. As this fungus does not do well where I live, that I see most often in freshly picked junipers.
There is nothing to do with respect to the resin naturally. I have come to appreciate that time as one of the “charms” of the variety -. A best known of great movement and dead wood
In order not to turn completely away from mistakes today, not read recent post Michael Hagedorn of boring beetles wood if not -. That’s a good read on a pernicious pest
This article was originally published on bonsaitonight.com