Juniper Hawthorn Rust

The juniper hawthorn rusts are amazing organisms that cause many unsightly growths on both juniper and hawthorn plants, saskatoons and sometimes others, but they are not really dangerous unless you are trying to raise saskatoons commercially. In fact, their life cycle is intriguing and makes mammalian biology look simple.

(Photo credit: “Juniper Rust Fungus (Gymnosporangium clavariiforme) (44489720891)” by Bernard DUPONT, licensed under CC BY-SA 2.0.)

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Needle Casts of Spruce

There are several types of fungal needle casts in zone 3. The two most common are Rhizopharea, which targets Colorado spruce, and Isthmiella which targets white spruce.

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Conifer Introduction

The conifers or evergreens were the first real tree form tried here on earth.

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A Mind Set for Healthy Trees

Having healthy trees is primarily a frame of mind.

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Fall Needle Drop of Conifers

Needle drop happens every autumn to a greater or lesser extent.

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