Ash Trees At Pearson example essay topic
Pearson Metroparks is proof of what we stand to lose". The EAB, an exotic Asian pest, was discovered in North America about five years ago, and was spotted in the Detroit area during the summer of 2002. Since then, it has apparently migrated south, infiltrating Lucas County as well as Wood, Defiance, Franklin, Fulton, Hancock, Henry and Williams Counties. It isn't the adult beetles that cause the most damage, it's their larvae. They burrow and nibble their way through the inner bark of Ash trees, affecting the trees' ability to move the needed nutrients and all important water throughout. What we " re left with are a bunch of trees that are cracked where the burrows have forced the bark to split.
And then, we " re left with no choice. It's just too late. Get out the can of day-glow red because once the tree is infested, there is no saving it. "Perhaps the biggest misconception being perpetuated is that the ash trees at Pearson can somehow be saved. Sadly, the evidence refutes that", claims Scott Carpenter, Communications Manager for the Metroparks of the Toledo Area.
"Based on what has happened in Michigan, it is clear that it is too late to protect the trees at Pearson. Once an emerald ash borer infests an area, it is 100 percent fatal to ash trees". Five species of Ash - 20-30,000 trees - are slated for removal from the Pearson and Oak Openings Metroparks, with Pearson closed until June 30, 2005 and having the priority date of May 15, 2005. This is the approximate date on which the EAB takes flight, and this flight pattern continues throughout much of September.
If the infested trees can be removed in time, the number of airborne beetles can be drastically reduced. John Jaeger is the Director of Natural Resources for the Metroparks of the Toledo Area, and has been in charge of the tree removal at Pearson Park. "Pearson will recover. You " re not going to see from one end of the park to another, the tree density is too great.
It is an extreme tragedy - we hate cutting down any trees, but ultimately, nature will find ways to fill it back up". There are intense methods for trees that we will not be able to remove in time to prevent the emerging adult Eab from laying their eggs. Basically, all Ash trees within a half-mile radius of an infested tree will be removed, healthy or otherwise. Dr. Elliot Tramer, a professor of ecology with the University of Toledo, is concerned with the program's viability. "The problem is that the success of the ash borer e eradication program depends on containing virtually 100 percent of the borers within this radius. Since one heavily infested tree may produce more than a thousand beetles, if only a small percentage of adults disperse beyond this half-mile radius, that's still potentially a large number of animals".
He also cites a variety of results from laboratory tests, stating that the potential flight range yielded was 2 to 4 miles. "Where ash trees are common, the borer only has to fly as far as the next tree. Thus it makes sense that in southeast Michigan and Lucas County, borers would not have to disperse very far. How far will the borer fly in places where the ash trees are more widely spaced? I don't think anyone is really sure". Melissa Brewer, of the Ohio Dept. of Agriculture, clarifies these comments made by the professor.
"The natural spread of the EAB is approximately half a mile per year, however there was a single instance in which an adult EAB flew six miles to exhaustion. That one instance was in a lab, not a natural setting". The half-mile radius for eradication comes from a plan handed to the ODA from the National EAB Science Advisory Panel. "We " re required to follow this procedure", Brewer states, "to help rid North America of the EAB. This isn't just for Ohio - it's for the better of the entire country". Insecticides have been considered but were dubbed ineffective on areas of eradication.
"Even if you had the means and the manpower, it's still only 80% effective at best to stop it from spreading", Jaeger says. Pearson is considered the easternmost point in which the EAB has been discovered in Ohio. Removing a majority of these trees could further prevent the spread to the Cleveland area and beyond. Carpenter adds, "Outbreaks of the emerald ash borer south of here and as far away as the East Coast were the result of nursery stock or firewood being transported.
Because of the EAB problem, nursery sales are now virtually zero across the country, and Ohio has gone so far as to use state troopers to stop the transport of firewood. The battle is being waged on both fronts."I see no right vs. wrong ethical issues in this situation", states Dr. Tramer. "There are no bad guys here, only people who have same goal - stopping the ash borer - but differing opinions on what might work. I am not optimistic that our current effort will be successful, but I would be pleased to be proven wrong. Much is at stake". The ODA has scheduled two upcoming open houses for Wednesday, May 4, 2005 from 6-8 pm at the North Baltimore Library, located at 230 N. Main St. North Baltimore, OH and Thursday, May 5, 2005 from 5-8 pm at the West Toledo Public Library, located at 1320 Sylvania Ave.
Toledo, OH. Affected residents are invited to get firsthand information on the state's efforts to eliminate the ash-tree-killing insect. For more information on the EAB, call 1-888-OHIO-EAB or USDA-APHIS at 1-866-322-4512. Readers are also encouraged to go online at web and web to learn more about the EAB and the effect on the Toledo area.