Posts Tagged ‘oaks’

Sunday, August 8, 2021

Oak wilt: No laughing matter

leaf and whole tree symptoms of oak wilt in a red oak treeIt’s normal to tune out all the Chicken Littles (such as yours truly) who run around squawking about this or that invasive forest pest or disease that pose a threat to trees. I mean, how many times can the sky fall, anyway? But the real danger is when we feel so overwhelmed that we throw up our hands. Thinking we can’t make a difference could result in more harm to forests than the pests themselves.

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Tuesday, December 10, 2019

Hetzler: Go Ahead, Paint That Oak Stump

leaf and whole tree symptoms of oak wilt in a red oak treeEach time I present on invasive pests, it begins with a slide of Chicken Little, a character who fomented mass hysteria by convincing other animals the sky was falling. It’s usually good for a chuckle. Inevitably I then proceed to unload a barrage of bar graphs, pie charts, alarming statistics, and photos of mayhem wrought by the featured pest. A final slide shows the position of the sky, with arrows in the direction of gravitational pull at 9.8 m/s/s, proof that the sky is indeed falling. For some reason, fewer people laugh at the end. Go figure.

Threats to forest health posed by invasive species are no joke. Yet I think we educators often come across like Chicken Little, squawking about yet another threat to trees. It would be hard to blame the average person for asking themselves, gosh – how many times can the sky fall, anyway? » Continue Reading.


Tuesday, July 9, 2019

Oak Wilt And Invasive Species Vigilance

leaf and whole tree symptoms of oak wilt in a red oak tree It’s hard to be cheerful in a job where I am expected to keep up on each newly arrived or imminent threat from invasive insects, novel plant diseases, and worrisome trends in the environment. Although I typically deflate everyone’s happy-bubble when I give a talk, I’ve discovered we need not fret that the sky is going to fall.

The National Atmospheric Deposition Program (NADP) is a joint effort of research institutions, government agencies and nonprofit groups; their mission is to monitor stuff which falls to Earth that is not some form of water. Since one of the NADP’s tasks is to study tiny particles of pollutants in the air, they will certainly notice if the sky starts to fall, and give us ample time to take cover. » Continue Reading.


Monday, November 25, 2013

Wildlife Food: More On Mast

nutsHard mast, the term used to refer to the nuts wild trees produce, is humbling this way. We know that, generally speaking, trees require a lot of energy to produce nuts, and so a tree won’t produce them every year. The books say every two or three years for beech nuts and three to seven years for oaks, but take it all with a grain of salt.

There are advantages, from a tree’s perspective, to being unpredictable. Abundant years followed by lean years keep seed predators in check. (Biologists call this predator satiation.) In a good year, the woods are flooded with nuts – more than any squirrel or mouse can eat. The next fall, when rodent populations are high thanks to all the easy living, the trees take the year off and the surplus rodents starve.
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Sunday, November 10, 2013

Beechnuts, Acorns and Whitetail

MAst and whitetailIt’s a good year for beechnuts and acorns. Beechnuts – the fruit of the American beech tree – are a small three-sided edible nut. Since they are high in protein and fat, they’re favored by Adirondack wildlife along with acorns, or oak nuts, the nut of the oak tree. Both are in the beech family (fagaceae) and play an important role in Adirondack forests. These natural nut crops, known as mast, are very plentiful this year.

Early this summer, while harvesting trees in Warren County, I could tell it was going to be a good year for beechnuts and acorns, as the canopies were full. As the beechnuts matured I often found myself enjoying their bounty – they make a nice snack in the middle of the woods. These crops are not always there for the deer, squirrels, bear and turkey, so I am sure they appreciate the extra snack as well. » Continue Reading.