Showing posts with label invasive plants. Show all posts
Showing posts with label invasive plants. Show all posts

Sunday, February 6, 2011

The Most Invasive Species on Earth

Today I read a wonderful blog by Meredith O'Reilly about invasive plants being aggressively sold in garden stores while volunteers break their backs digging them out! http://www.beautifulwildlifegarden.com/not-all-berries-are-created-equal.html

Here's the final paragraph:
   "A side note: I met a woman once who told me that she wraps netting around her Yaupons and other native berrying plants in order to keep the birds from eating up the berries. She complained that the birds were eating the berries so fast that she couldn’t enjoy how pretty the berries looked in the fall. Personally, I find the sight of birds eating berries to be incredibly beautiful and entertaining – in fact, I garden for that purpose — but this woman was willing to cover her pretty shrubs with ugly netting in order to deny a native food to wildlife. I’m truly at a loss of words to explain that one."

I had one of my many OMG moments! How hateful of nature and the earth can humans get? We've all watched the videos of humans torturing animals in the name of feeding all of us, or killing the dolphins, poisoning all the pollinators, spilling the oil into animal breeding grounds so we all can drive our cars cheaply. The summer of 2010 wasn't pretty.  But when it extends to a one to one relationship like this, I find myself baffled.

So I looked up the definition of "Invasive Species" and what do you think I saw? Judge for yourself. Here is the definition of invasive species from a couple sources.

From http://www.invasivespecies.org/resources/DefineIS.html

""Invasive species" means an alien species whose introduction does or is likely to cause economic or environmental harm or harm to human health."

From http://www.invasivespeciesinfo.gov/whatis.shtml

"An "invasive species" is defined as a species that is

1) non-native (or alien) to the ecosystem under consideration and
2) whose introduction causes or is likely to cause economic or environmental harm or harm to human health. (Executive Order 13112)."

Anyone else noticing a pattern here? Humans are and always have been very human-centric but this was a surprise to me. I have always thought of invasives as primarily bad for the native wildlife. As Ms. O'Reilly mentions in her blog, non-natives out compete natives and usually have less nutrition for the native wildlife, leaving the animals and insects without enough food and shelter.  But as far as the officials are concerned, it's about human health and harm. Here we really have circular logic, since it doesn't seem most of our officials have figured out that what's good for wildlife IS conducive to human health and welfare!

In the meantime humans continue to over populate the planet. Digging into eco-systems they shouldn't even be in, such as the latest Russian exploration into an under-ice lake in the South Pole.

NPR Article 2/3/2011 

We humans spread disease, pollute, dump garbage, kill and destroy everything including our own children and fellow beings. We slice off the mountain tops, flood valleys large enough to shake the earth, and even throw debris up into space! Then we're surprise that gentle nature seems to turn against us!

There is only one answer from nature's point of view, lower the number of humans. From my point of view, as a human, I'd like to see us use our brains to wake up and change our ways. We might make some progress in the United States, but I don't know what we can do about dense populations like China.




China's Three Gorges Dam: An Environmental Catastrophe?
  Nope, there's no doubt in my mind about it; humans ARE indeed the most invasive species on the earth.





Photo Credit: Edward Burtynsky

Sunday, July 19, 2009

Preparing for a Battle in the Air Potato War!

The bane of every gardener is invasives. Some people call them weeds. A weed is just a plant in the wrong place. While this is also true of invasives, the definition goes much farther. Click here for a wonderful site about Invasive plants. The bane of my garden is Air Potato . It's so bad in Florida that every January many groups get together to do some form of "potato pickup" complete with competitions to see the oddest shape potato or the largest or the most potatoes collected! Luckily here in Central Florida it gets cold enough in the winters that the AP vine dies back a bit. But even with diligent potato pick up, by mid-summer, with the rains and long sunny days, the dreaded vine has taken over. So today I head out to do an AP decimation.

I start by donning the uniform for serious vine-pulling in Florida: Long, lightweight slacks tucked into socks, horse-mucking shoes (steel toed, waterproof), gloves, mask, hat, knee pads and sunscreen on all exposed skin. I also keep my house keys around my neck and my cell phone in a deep pocket. The hat is required to shade your face and hit the spider webs before your face does! I recommend an old stocking knotted to make a skull cap to keep bugs out of the hair too! The mask is required because of all the mold, fungi, tiny critters that live in FL soil. Without a deep freeze, nothing in our soil dies back. This may seem crazy to gardeners in other areas, but believe me, in Central Florida and south, it's necessary. It doesn't hurt to neti after weeding or mowing too, but that's the subject of another post! The pants are tucked into the socks, again to keep critters from getting to me. Under my pink cotton socks I wear a pair of bamboo socks for wicking sweat away from my skin. The cell phone serves two purposes: the obvious, in case I need to call for help, and the second is to set an alarm. I cannot stay out in July Florida heat, exerting myself for more that one hour at a time. The alarm keeps me from over doing it.

Once dressed, it's time to start pulling. Pulling, cutting, digging out the vine the best you can, always remembering that even a tiny piece left on the ground will grow! I try to catch them as soon as the leaves form and the potato is wasted. The smaller the potato, the better chance it will die. I've put Air potatoes in a black plastic garbage bag, into the corner of the dark garage and 3 months later found a vine coming out of the bag. They do not die easily. One way to kill them is to go out at dusk (wear mosquito gear!) and cut a vine near as possible to the ground, paint both cut ends with Round-up (glyphosate) using a tiny paint brush. It's a royal pain to do this, but the one time I did it, it worked wonders. In 24 hours both ends are completely dead. It has to be done at dusk since that is when the plant will "suck" the poison down. Now I'm no scientist, so I cannot vouch for the accuracy of that statement, but it did work. Like I said, it was a pain lugging a small vile of roundup with brushes and a pair of scissors around under the azaleas but the results were worth it.

one hour later, the spoils of war:
And here are the before and after photos for comparison. Obviously there is a lot more to do! At least you can see the bench and the small tree now!















In one week I'll do it all again, since every single leaf or piece of vine I missed, will root itself and start again. Also many of the vines in the trees will be dead since I cut them off. Of course not so much as long as it keeps raining. This is way the cold dry winter is the best time to irradiate this nasty vine.

Odd fact: Air Potato gives off a chemical in the soil that inhibits other plants from growing! (The things you learn judging a Science Fair!)

Next week we'll work on the South front where the Elephant ears, Rain trees and Air Potato have formed an axis of evil in my yard!

Sunday, June 28, 2009

Advice to a gardener newbie

http://www.floridayards.org

Check out this site and find something similar for your location. The "right plant/right place" concept will minimize your maintenance requirements. Using natives helps keep the need for fertilizers and pesticides down. And plant the more water hungry plants closer to your hose with the more drought tolerant farther from the water sources. I am against auto sprinklers only because most people don't monitor them and they wind up wasting a lot of water. Consider habitat gardens too. Butterfly gardens are the most popular. http://www.nsis.org/butterfly/butterfly.html


Familiarize yourself with the IMP (Integrated Pest Management) and BMP (Best Management Practices)in your area.

I recommend the Master Gardening program to all homeowners. There is one in every state, look up yours and consider taking the course.
http://www.ahs.org/master_gardeners/

Remember that exotic invasive plants are a huge and expensive problem in all of N. America. And to this day places like Lowe's and Home Depot continue to sell these plants. They are destroying the native habitats and directly responsible for nearly half of all the species on the endangered list! http://www.invasive.org

Most of all, take your time, nature does. Enjoy it!