Rabbit-proof fence
en.wikipedia.org
en.wikipedia.org
http://www.ehp.qld.gov.au/wildlife/threatened-species/endang...
http://www.edgeofexistence.org/mammals/species_info.php?id=9
Since Alberta grows a lot of wheat and other grains, there is value in limiting the presence of rats.
In addition to setting traps and poison along the rat control zone, they also have official rat control officers that search farms and shoot any rats they find. [2]
They have found a number of rats in recent years, so there is some doubt that Alberta has remained truly "rat free".[3]
[1]http://www1.agric.gov.ab.ca/$department/deptdocs.nsf/all/agd... [2]http://www.montrealgazette.com/Alberta+control+officers+Ores...
http://pss.uvm.edu/ppp/articles/deerfences.html
White tailed deer can jump 8+ feet high, and by then your backyard attains somewhat of a prison feel.
No, I'm using wire covers over my raised beds. Luckily some plants appear to be safe, so far, e.g. tomatoes and peppers.
[1] http://www.youtube.com/watch?v=PbRRgIbYKgw
[2] http://anr.ext.wvu.edu/r/download/51668 (PDF)
Perhaps we will begin to see gated communities that promise to keep deer and wildlife out of residents' backyards?
A smaller version of the australian rabbit fence if you will.
I put in a black poly deer fence around the back yard. 8 feet high with 2 inch grid. Smaller grids trap birds, which is undesirable. Its practically invisible, and was very easy to put in (deerbusters.com). One of the neighbors didn't notice it for 6 months.
In the front yard, I've had very good luck with cow bells and fishing line. One end of the line gets attached to a fixed object, and the other to the cow bell. String the line along so that it is 2 or 3 feet above the ground, with support about every 10 to 15 feet. Set the cowbell on something like a bucket so it will drop when the line gets pulled.
The deer hit the line, but the noise is at a distance and freaks them out.
I started with a portion of the yard, disrupting their normal routes, and gradually pushed to the edges.
This spring our gardens have been absolutely amazing, and no deer damage.
> £167 per mile ($250/km)
Just for reference.. in India.. we sometimes use the American counting method (millions, billions) .. and sometimes the native one (lakhs, crores) alternatively.
its easier than the mile/km conversion though.. since 10 lakh = 1 million, 100crore= 1 billion