Trees Susceptible to the Polyphagous Shot Hole Borer

...st Dr. Jerrold Turney. I’ve learned, as a gardener, that there are certain plants in every bio-region that simply aren’t worth planting due to pest pressures. When it comes to trees it can be frustrating, expensive and downright dangerous to have a tree attacked by an incurable infection or pest. PSHB attacks hundreds of different tree species but is hosted on a more limited number. The list of PSHB host trees is growing as scientists study the pr...

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Satan’s House Plant: More on Asparagus setaceus/plumosus

...Photo by Mr. Subjunctive It seems like we hit a raw nerve with our mention of one of our least favorite plants, Asparagus setaceus. Just in a case you’d like to know more about this demonic plant, Mr. Subjunctive, a garden center employee with a fantastic blog, Plants are the Strangest People, has a detailed post about Asparagus setaceus (apparently also known as Asparagus plumosus)....

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Least Favorite Plant: Asparagus Fern (Asparagus setaceus)

Today, a new feature on the blog: least favorite plants. I’ve always thought that it’s more fun to read a bad review than a glowing one, so why not extend the concept to the plant world? But we’re not going to rant about “weeds”, which Ralph Waldo Emerson defined as, “a plant whose virtues have not yet been discovered.” As active foragers we’ve found virtues in what most people think of as weeds, plants like broadleaf plantain and stinging nettle...

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My Fellow Californians, Please Water Your Trees

..., at least, most long-lived and valuable components around which the other plants intermesh, if not depend. Mature trees are among the most valuable and difficult-to-replace plants in urban areas. Their loss would be devastating. Trees can be likened to the steel framework of a building; how could the building exist without it. So, keep the trees watered. Not watering the trees results in an arid cityscape, trees that fall over and kill people and...

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A Warning About Straw

...il organisms. Clopyralid and aminopyralid mimic the hormones in broad-leaf plants, causing them to grow un-evenly and die from wrong-facing, crinkled leaves and other symptoms. Grasses are un-affected, so fields of grain and lawns have been sprayed with this sort of chemical, as a cheap way of keeping broad-leaf competitors at bay for a few years. These chemicals have a half-life of 11 months in hot compost, and are often applied at such high rate...

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