Charlie Rohwer, a frequent guest contributor to the Garden Professors, brought to my attention a recent letter in Nature by Mark Davis and 18 other ecologist entitled, “Don’t judge species on their origins.” Davis is a leading authority on invasive species and author the book Invasion Biology. In their article, Davis and his co-authors make many of the same points that I’ve made here on the blog (Are natives the answer? Dec. 14, 2009; Restoration ecologists you need us – part 2.… Continue reading this article “Ecologists weigh in on native-exotic debate”
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Check out Dr. Jeff on NPR
Be sure to read Jeff’s comments to NPR on pesticides and organic gardening.
WOW again (Why oh Why?)
I’m going along with the “dead tree” theme of the week, but doing a little prognosticating at the same time. Bert and Holly showed you tree demise on site; I’m going to show you tree demise in the making. We can call this “dead plant walking.”
I’ve done a few WOW postings in the past, often with a focus at what you might find at a nursery or big box store. Here’s a recent find at an unnamed BBS, in the “topiary” section:
Unless you intend to have a giant stake as part of your topiary statement, this tree (actually a juniper) will morph into a prostrate form before your very eyes. … Continue reading this article “WOW again (Why oh Why?)”
Read and follow label directions…
Every extension specialist or educator that mentions any kind of pesticide in a talk or article always includes the disclaimer ‘Read and follow all label directions.” However that caveat ranks somewhere between “Your seat cushion may be used as a flotation device” and “Do not remove tag under penalty of law” as the most ignored phrase in the English language. While we can probably rationalize ignoring the last two (If a jetliner ditches in the middle of the Atlantic is a seat cushion really going to save you? … Continue reading this article “Read and follow label directions…”
Update on root-rotted Cornus kousa
A little more than a year ago I posted a Friday quiz based on a failing Cornus kousa.The answer explained that our landscape has, in part, a perched water table that effectively rotted most of the roots of this poor tree over several years. Last spring we moved it to a different section of our landscape where we know the drainage is better, and I’ve been monitoring its recovery since that time.
Cornus kousa leaves in 2007
Cornus kousa leaves in 2011
We were gratified to see that the leaves this year are significantly larger than those of previous years. … Continue reading this article “Update on root-rotted Cornus kousa”
Our visiting GP takes on fertilizers
Like many readers of this blog, I’m like a kid in a candy store where plants are sold. I try to justify the extra cost of a large annual pot instead of a scrawny 4-pack, or I imagine I’ll find room for that lime green Heuchera and my wife will learn to love it. But unless I keep my blinders on and stick to the shopping list, I’ll probably leave with a fertilizer. This year, I’ve purchased 12-0-0, 5-6-6, sulfur, and some 5-1-1 liquid. … Continue reading this article “Our visiting GP takes on fertilizers”
Safety first?
I was driving around town recently and saw a tree service crew clearing up some storm damaged trees. Because of my line of work I usually do a little rubber-necking and try to assess why type of tree came down and what issues may have preceded it’s demise. In this case, however, I was struck not by the trees but by the tree crew. What I saw left me speechless. Well, here, see for yourself…
No eye protection. … Continue reading this article “Safety first?”
Science Education and Lichens
Seemingly once a week we see a report in the news about how Science and Math education in the US lags behind many developed countries around the world. http://articles.cnn.com/2011-05-15/us/education.obrien.response_1_math-and-science-national-robotics-competition-education?_s=PM:US
While we typically think of Chemistry and Physics when discussing science education, biology is in there too.
I bring this up because I am continually amazed at how little many people know about basic biology. Some of this funnels its way into extension calls and e-mails. … Continue reading this article “Science Education and Lichens”
Creating a sense of place
As many GP readers know I’m originally from Olympia, WA. Once a week or so I troll through the on-line version of my hometown newspaper, the Daily Olympian (“the Daily ‘O’” for short or, more commonly, “the Daily Zero”) to keep up with latest happenings back home and to see if any of my high school classmates are on their way to jail. While none of the Olympia High Class of ’78 made the news recently, my interest was piqued the other day by the headline “Saving the world – from weeds”. … Continue reading this article “Creating a sense of place”
This ‘n That
Grading finals, looking at roots, and planting seeds is consuming my time this spring, but I have just a few things to share today which might be interesting.
So, as those of you who follow this blog know, I love peanuts. This year we’re planting out a bunch of new varieties, a few of which are extremely interesting. Believe it or not there are not only red and pink peanuts but also black, white, and mottled peanuts. … Continue reading this article “This ‘n That”