North America faces beetle plague


	North America faces beetle plague

valann 47

7-1-2009 2:14 AM

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tags:

beetles, plague, tree, british columbia

1 Comment |

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7-1-2009 5:31 AM

clip-on-tie

ewwwww, squished beetles = beetlejuice

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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/99c38dbb-c565-4fd1-bee1-d38c9bd434ca/77FAA323-70F4-4833-B79D-FD701261D8CC/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://news.bbc.co.uk/1/hi/sci/tech/8126663.stm" href="http://news.bbc.co.uk/1/hi/sci/tech/8126663.stm" style="font-size: 11px;">news.bbc.co.uk</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://news.bbc.co.uk/1/hi/sci/tech/8126663.stm"><P class="first"><B>A plague of tree-killing beetles which swept across British Columbia is threatening to spread east, to the US.</B></P><P>The mountain pine beetle has killed more than half of all lodge pole pine in the province and is now active in neighbouring Alberta. </P><P>Cold winters usually kill off the beetle larvae, but the region has been warmer than usual in recent years. </P><P>Scientists say the beetle could attack and kill jack pines, which are found throughout North America. </P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://news.bbc.co.uk/1/hi/sci/tech/8126663.stm"><div align="center"><img src="http://content8.clipmarks.com/blog_cache/news.bbc.co.uk/img/50B071B8-5CEB-450E-B30A-242204657F83" alt="Beetles tunnel under the tree bark" /></div></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://news.bbc.co.uk/1/hi/sci/tech/8126663.stm">Mountain pine beetles occur naturally in British Columbia but in the last few years their numbers have reached plague proportions.</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://news.bbc.co.uk/1/hi/sci/tech/8126663.stm">As the beetle burrows under the bark of the tree, it secretes a fungus from its mouthparts which blocks the transport system of the tree. This, combined with the stress of the beetle attack, kills the tree. </blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://news.bbc.co.uk/1/hi/sci/tech/8126663.stm">In the past, cold snaps before or after winter killed off many of the beetle larvae, but these have not occurred for a number of years. </blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/77FAA323-70F4-4833-B79D-FD701261D8CC/blog/" title="blog or email this clip"><img src="http://content9.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>

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