Polyphagous Shot Hole Borer and Avocados

...oles on avocado trunk. Photo credit: Eskalen Lab, UC Riverside. Of all the plants in our yard the one I care most about is our avocado tree. I’d be despondent if anything happened to it. Which is why I panicked when I first heard about the Polyphagous Shot Hole Borer (PSHB), a beetle that spreads a fungus Fusarium euwallacea. First noticed in 2003 here in Southern California, the PSHB seems to damage some trees more than others. Concerned about lo...

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Saturday Tweets: Christmas Eve Edition

...as cactus an impostor? Probably! Find out what it really is! #garden #houseplant #holiday https://t.co/qogcJNggqm pic.twitter.com/4qsmEgfBsZ — John Porter (@WVgardenguru) December 19, 2016 It's time to plant your winter vegetable garden (and gloat on Facebook) https://t.co/fOOnYZXiNl — Root Simple (@rootsimple) December 19, 2016 Life In Nara Through Japan’s 72 Microseasons https://t.co/DsglPK8tGx via @SpoonTamago — Root Simple (@rootsimple) De...

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On the Possibilities and Problems of Groups

...“connectivity.” People can connect to feed the homeless, rescue animals or plant trees. Unfortunately, people can also connect to promote racism and hate, something the internet has made worse. I wish I had an easy set of points on how to form positive, long lasting and effective groups or just how to be a better member of a group. I don’t. But, as in most worthwhile tasks, perhaps the answer is to take things one step at a time. We, in Western co...

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Saturday Tweets: Happy St. Patrick’s Day!

...blela) March 16, 2018 Happy belated birthday to the "plant wizard" Luther Burbank. See my tribute to his life love of plants here: https://t.co/rnPMhrszzj — Fruit Cornucopia (@ValenzuelaJohn) March 15, 2018 The Florida International Bridge Collapse Is About So Much More Than a Failed Structure https://t.co/6YiMCjEqjg via @StreetsblogUSA — Root Simple (@rootsimple) March 17, 2018 How Can Vision Zero Work When L.A. Continues to Prioritize Speed? htt...

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Saturday Tweets: Hogweed, Newcastle Disease, and Crochet Hyperbolics

...ly hazardous Giant Hogweed has now been found in Virginia. If there were a plant to lure me into a toxic trap, this gorgeous umbellifer would be it. https://t.co/cWTXa0n8Ya — Thomas Rainer (@ThomasRainerDC) June 22, 2018 If my essay about fascist engineers could stop garnering on-the-nose examples that'd be great. https://t.co/fxZjdeUnfc pic.twitter.com/Q788LyQdIS — david a banks (@DA_Banks) June 21, 2018 New Video: Is your car battery dead? h...

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