Archive for the ‘Colorado’ category

Colorado’s Forests and the Pine Beetle Epidemic

July 27th, 2011

This is far and away the best video about the beetle epidemic that we’ve seen.

“If the tree is beautifully healthy an enormous flow of resin will push it out, foresters’s says it’sbeing pitched out, pitch tossing the beetle out that is the natural defense of the tree,” said Jeff Mitton professor of ecology and evolutionary biology at CU – Boulder.

If a tree is healthy there are documented cases of it pitching out two thousand beetles. On the flipside, struggling, drought stressed trees have been documented being killed by as few as a couple dozen beetles according to Mitton.

This current beetle epidemic is 10 times larger than the second largest in history.

Mitton said that the bark beetle lifecycle has really changed. Two to three decades ago the bark beetle started coming out July and then stopped around the second or third week of August. The offspring would get out at about the same time. Mitton’s team found that bark beetles are starting much much earlier.

They caught the first beetles in 2010 on May 22 and the last beetles September 20. That means the season is twice as long as to used to be.

Also offspring are emerging within two months not 12 months later like they used to be.

Life Cycle of the Mountain Pine Beetle

March 4th, 2011

Mountain Pine Beetle Life Cycle

How Can Something So Small, Cause So Much Destruction!!!!!

March 3rd, 2011

The mountain pine beetle is only a miniscule 5 millimeters long, but when working in droves, it can cause millions of dollars in destruction!

Pine Beetle Size

Stop the tree from stressin and attracting pine beetle by applying TRansFilm

February 18th, 2011

We apply TransFilm, which is an anti-dessicant, or substance which helps evergreens hold water. Evaporation is high in the southwest during the winter. Pine trees are growing but at a slower rate.

We did applications in Sedalia, Castle Rock, Parker and Elizabeth.

Our largest Parker client has 376 trees which are planted on some of the worst soil we’ve seen in Douglas county. His trees are looking a little better but dry.

At another Douglas county client yesterday, it was the opposite with a fir tree literally getting drowned. Too much water. There looked to be oxygen starvation in the root zone.

Pine Beetle Spraying Has 99% Success Rate

February 16th, 2011

Larimer County’s decimated pine forests leave little doubt that pesticide application are the only way to safeguard your tree.

Think about some options for a second.

Pheremones are under study but unproven in epidemic areas. Larimer county is in a mountain pine beetle epidemic.

Good cultural practices promote vigorous pine trees which can resist pitch tubes. Yet, few think about prevention, right or wrong.

Removing dead and diseased pines trees help. It won’t secure a mature pine to the left of your bay window that frames your view perfectly.

  • Facts:
  • Bark beetle hit ponderosa pine ten fold in 2010.
  • 181,000 acres of pine forest were affected in 2010.
  • Larimer County was harder hit then any other county in Colorado

+++ Get three tree service recommendations for Larimer County at Ask An Arborist. Just enter how many trees and a contact method and we’ll reply back. We only use your email once to reply to you. +++

Mountain pine beetle infestation in 2010 took hundreds of thousands of acres of ponderosa and lodgepole pine trees in the high county and foothills of Larimer County.

  • Towns hardest hit :
  • Cameron Pass
  • Drake
  • Fort Collins
  • Red Feather Lakes

Crystal Lakes and Glacier View are two HOA’s in western Larimer County that our arborists study./

“We’ve seen 99 percent success rate in Estes, here (Glacier View HOA) and Denver, ” said Jeff Disler, Plant Health Care Consultant.

Permethrin is safer to the environment with a 99 percent success in preventing pine beetles. Carbaryl was favored at Rocky Mountain National Park and other national parks. In tests carbaryl does provide greater two season control then permethrin.

If you have lodgepole pines, the beetle “only” affected 367,000 acres of lodgepole pines, down from 398,00 acres in 2009.

When you are reviewing treatment options, know that they work. Find a qualified tree service, ask good questions and save money.

Tips for saving money:

+ Ask good questions,. Here’s one. Is your tree service a licensed pesticide applicator?
Ask that and establish you know something and talked to other vendors.

+ Get three bids. Prices range between $7 and $40 per tree, according to estimators. On average expect $10 to $12 down to $7 in stands of 50 trees.

+ Good arborists are good money savers. If you spend $5,000 or more on arborist care and tree removal, don’t price shop only. No need to spray if the vendor does it all wrong.

+ Multiple trees slashes your spraying cost substantially.

Larimer County Breaking News : County Hit Hard by beetle kill

February 15th, 2011

County hit hard by beetle kill,” sez Coloradoan.

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Estes Park: Cold enough to kill mountain pine beetle?

February 3rd, 2011

2/3/2011

It has dipped to -36 in Rocky Mountain National Park this week. We still think it would take at least a week of temperatures that low to make a difference.

The Estes Park Trail interviewed Kyle Patterson Public Information Officer at Rocky Mountain National Park gives us this information from “Frequently Asked Questions Regarding Mountain Pine Beetles in Colorado” from the USFS.

+++ Get three tree service recommendations. ServiceMagic. +++

Pine Beetle Activity – July 18, 2010

July 19th, 2010

Hartsel, CO – I was in the Colorado mountains at the Ranch of the Rockies this weekend.  Very little sign of mountain pine little activity.  Hartsel borders Pike and San Isabel national forests, forests not predicted to be a beetle  hotspot in 2010.  We treated  fifty high profile trees at the front entrance of the Ranch of the Rockies in early July because a pine had been hit.  I did see more  beetle hit trees along 285 in Evergreen, CO,  compared to last year, 2009.

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Deadwood, SD - Reports are that the beetle infestation is worse than 2009. Target areas for the USFS prevention strategy, dubbed the Nautilus Project, are in the Black Hills National Forest. Ninety percent of  Custer’s  Peak is dead, fueling fears of a Colorado-type epidemic.  Forest thinning will be aggressive is Nautilus is implemented. More about Black Hills beetle prevention.

Medicine Hat, Alberta – Mountain pine beetle died off in a spring cold snap, giving government officials, lumber workers and tourism boosters hope of a lessening population of beetle.  The numbers appear to be at 2007 levels with the exception of areas in northern Alberta and along the British Columbia border.  The prediction was based on sampling of 1,266 pine trees, from 229 infested sites.

Crowsnest Pass, Alberta – “Beetle survival was low and there is a ‘low probability of local beetle production and spread.  However, there is an extremely high probability of in-flights this summer,’  according to the Prairie Post. More about mountain pine beetle die off in Alberta.

Crowsnest Pass, Alberta

Beetle Activity Predicted to Lessen in Crownsnest Pass in Alberta do to spring cold snap.

Crystal Mountain, CO -  Along the ridges, it is dry and trees are getting hit, turning red, and dying off according to arborist and consultant, Jeff Disler.  Crystal Mountain is in the Roosevelt National Forest,  Larimer County, CO above Fort Collins.

In the valleys, it’s a different story.  Pine stands are pulling water from plentiful standing water,  relieving stress. The stands, about evenly split between ponderosa and lodgepole pines seem better able to “kick out tubes”  or fight off a beetle invasion.   A pine with lighter yellow pitch tubes,  is typically less damaged by attack.

There is also engraver beetle activity at Crystal Mountain.

Hotspot – The Pinery, Parker CO (South of Denver)

April 22nd, 2010

The Pinery is an upscale neighborhood about 30 miles south of Denver. I spoke with Colorado mountain pine beetle expert Jeff Disler about his observations from an April 21st, 2010 visit.

“I examined six houses on the same street. Now five of the six houses had been spraying every year, twice a year until last year (2009). They stopped last year. This year they called me out and I saw some initial hits. There were only a few of the pitch tubes characteristic of pine beetle attack.

pitch tube mountain pine beetle infestation

Pitch tube from Mountain Pine Beetle

These were the five houses that skipped last year’s spaying. They are freaked out now and want us to come out and spray twice to make sure.

Now the sixth house, they have not sprayed for pine beetle at all and they have many trees that are hit and will probably go red (die) this season. There are some that had only a few pitch tubes so they might be able to saved.”

ODC – Beetle Prevention Game Changer or Wishful Thinking

February 12th, 2010

2/12/2010

The Holy Grail of mountain pine beetle prevention is to create a natural or organic substance that prevents mountain pine beetle (mpb) while doing no damage to wildlife, water and humans.

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Got a question about your trees? Ask an Arborist for free and get the answers you need.  Subscribe to the monthly email newsletter and receive a free tree care ebook,  the Tree Owners Manual.

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Unfortunately past products that promised this haven’t worked well enough. Pheromones, fertilization and integrated tree care all help. However, none of these methods have been as effective as chemical pesticides.

According to an article by North Forty News,  AgriHouse of Berthoud, Colo. is testing a new, natural MPB prevention product, called ODC, aimed at breaking through where others have failed.

Richard Stoner, president of AgriHouse, tells the North Forty News that  “the product was originally developed for NASA to help ‘grow plants in a closed loop system.’  Stoner does not claim any magic solution to the beetle infestation. He describes ODC as ‘a tool in the IPM (integrated pest management) toolbox.’ ”

ODC  testing is being done on a sample of 90 pine tree seedlings in Larimer County, Colorado.  AgriHouse cites a Forest Service study that shows a correlation between increased resin and a reduction in the amount of bark beetle eggs.

George Biedenstein, staff arborist at ArborScape Inc. found a  hole in the company’s test method.

“Pine beetles do not attack seedlings anyway,”  Biedenstein said.  ” They mainly attack older trees over 8 inches in diameter. So I could pour pink lemonade around pine seedlings and they also wouldn’t get pine beetle.”

Generally in a mountain setting, pine trees take anywhere from 5 to 7  years to attain the size that attracts a mountain pine beetle colony.  So it could be a decade before this study garners any data.  Studies done on stands of pine trees in Norway, France and Florida have shown that chitosan based products do slow down the blue stain fungus that many arborists believe causes the host pine tree to perish.

ODC is designed to strengthen a pine tree’s ability to resist the mountain pine beetle. ODC uses chitosan which helps pine trees produce more resin.  Studies of bark beetle activity have shown that trees with more resin are not as an attractive host to MPB eggs.

However it all sounds like wishful thinking to us. What do you think?

Matt Johnson is a blogger and reporter covering arboricultural and tree care issues.  He writes for Mountain Pine Beetle Treatment and ArborScape.

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