Navigation Links
Controlling ragweed pollen in Detroit: A no-mow solution for Motown?
Date:6/16/2014

letely, other plants rapidly outcompete ragweed," Katz said.

When the lots are left unmowed, the common perennial plants that replace ragweed include goldenrod, milkweed, Kentucky bluegrass, chicory and aster. When a vacant lot is not mowed for several years, the young trees that can encroach include the Norway maple, silver maple, box elder, cottonwood and tree of heaven.

To determine whether ragweed populations are associated with a particular land-use type in Detroit, Katz and Carey documented the amount of ragweed found in vacant lots, around occupied residences and in city parks. They also set up pollen collectors at 34 sites and analyzed the concentration of ragweed pollen grains collected at each location.

They found that the amount of ragweed pollen in the air at a collection site was determined both by the abundance of ragweed plants within 10 meters (33 feet) of the collector and by the number of vacant lots within 1 kilometer (0.62 miles) of the site.

That result drives home the point that pollen is mainly a local and neighborhood-level problem, even though public health officials have for decades treated it as a regional problem, Katz said. Though individual pollen grains occasionally travel hundreds of miles, previous studies have demonstrated that more than 90 percent of pollen grains travel less than 100 meters from the source plant.

"Because pollen grains can travel long distances, sometimes people make the mistake of assuming that it usually does travel long distances," he said. "Our Detroit study shows that ragweed pollen is a local problem, and that's important because it means we can make local management decisions about how to reduce exposure."

Leaving vacant lots unmowed and allowing some of them to reforest would reduce the allergenic pollen exposure of Detroit residents, according to Katz and Carey. Although reforestation is controversial, it is advocated by the Detroit Future City Strateg
'/>"/>

Contact: Jim Erickson
ericksn@umich.edu
734-647-1842
University of Michigan
Source:Eurekalert

Page: 1 2 3 4

Related medicine news :

1. Sooner Is Better for Controlling Obese Kids Weight: Study
2. Novel drug candidates offer new route to controlling inflammation
3. Aggressively controlling glucose levels may not reduce kidney failure in Type 2 diabetes
4. Study finds people have difficulty controlling multiple chronic conditions
5. Controlling superconductors with light
6. A new approach for controlling the skyrocketing cost of health care
7. Controlling depression is associated with improved health for heart-failure patients
8. Controlling vascular disease may be key to reducing prevalence of Alzheimers disease
9. Predicting, preventing, and controlling pandemics: Making the case for a strategic action plan
10. Controlling spine metastases with tumor separation surgery and high-dose stereotactic radiosurgery
11. Pathway controlling cell growth revealed
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/1/2015)... 2015 Researchers say working around asbestos-containing ... sheet metal workers contract malignant mesothelioma. Surviving Mesothelioma has ... its website. Click here to read it now. ... and Training monitored 17,345 sheet metal workers from 1986 ... them died of mesothelioma or another asbestos-related disease ...
(Date:3/1/2015)... (PRWEB) March 01, 2015 ERISAPros ... King and Carolyn Roddy to the professional staff of ... Compliance, graduated from The Ohio State University-Mortiz College of ... years of experience working with several Fortune 500 companies ... the area of corporate benefits. Her experiences range from ...
(Date:2/28/2015)... In recent years Medical Marijuana has continuously ... as a way for them to expand their patient base ... medicine. Since the FDA still lists Cannabis as a Schedule ... licensed physicians that can help guide them when recommending ... in Santa Cruz, CA is a leader in the ...
(Date:2/28/2015)... 2015 The Heart Fit Clinic started ... of the machine. The Heart Fit Clinic is also ... a franchise model. The goal is to scale the ... disease. To buy External Counterpulsation machines can ... individuals through this process and achieve the desired results. ...
(Date:2/28/2015)... Indosoft Inc , developers of ... are pleased to announce the development of Q-Suite 5.9. ... versions of Q-Suite, this new version will include enhancements ... new features to the leading edge call center software. ... will add features to enhance security and protection. Administrators ...
Breaking Medicine News(10 mins):Health News:New Study Finds Indirect Asbestos Exposure Can Raise Mesothelioma Risk for Sheet Metal Workers, According to Surviving Mesothelioma 2Health News:ERISAPros Recruits Evelyn King, J.D. and Carolyn Roddy, J.D. to its Professional Staff 2Health News:Reputable Cannabis Doctor In Santa Cruz and Monterey Joins the Medical Cannabis Network 2Health News:Clinicians Can Now Purchase External Counterpulsation with Heart Fit Clinic 2Health News:Indosoft Proudly Announces Q-Suite 5.9 Call Center Software for Asterisk 2
... immune system, says a study conducted by Spanish researchers . ... C, B-complex vitamins and has good doses of minerals like ... known that potatoes are good for bowel health. ... particularly if eaten cold or in a salad, the researchers ...
... to the coastal Spanish town of Altea to get Oslo-funded ... to fractured bones. ,"In Norway it is cold ... why they are better off here," the tanned head of ... ,The rehabilitation centre was set up and is run by ...
... are an indicator of an industry's health, then the turnout ... and spirits fair, confirms the sector is doing nicely, if ... this year's show, a two-yearly event in Bordeaux, a three ... for Vinexpo by the London-based International Wine and Spirit Record ...
... with a life-threatening illness, a young Indian American is hard ... 10 as very few South Asians are listed in the ... Chakravarthy was diagnosed with a disease known as Acute Myelogenous ... bone marrow, the South Asian community has come together nationwide ...
... up with a partner in Harley Street - a ... are frequented by celebrities - and is introducing ... into tie-up based on her franchise system with the ... Ayurveda on Harley Street is indicative of the increasing ...
... Fey has launched an entirely new kind of healthcare ... culture of prevention throughout America and the world -- ... to one that encourages people to take early steps ... ,This message appears this week in a full-page ad in ...
Cached Medicine News:Health News:Intake of Potatoes Boosts the Immune System 2Health News:Norwegians Take in the Sun in Spain on Doctors' Orders 2Health News:World Wine Sales Brisk, but French Producers Hungover 2Health News:World Wine Sales Brisk, but French Producers Hungover 3Health News:South Asians Seek Bone Marrow for Young Indian American 2Health News:Shahnaz Hussain Takes Ayurveda to London's Harley Street 2Health News:U.S. Preventive Medicine(R) Encourages the International Community to Embrace Prevention 2
(Date:2/27/2015)... 2015  Acsis Inc., the market leader for supply ... that John DiPalo , Acsis, Chief Strategy Officer, ... Chain Executive 2015 Provider Pro to Know. The ... to help prepare their companies, and customers, supply chains ... year,s list of Provider Pros to Know is featured ...
(Date:2/27/2015)... 27, 2015 ... sistema di monitoraggio dell,infarto congestizio (CHF - Congestive ...     Vectorious Medical ... sistema per il monitoraggio cardiaco destinato a pazienti ... di aver concluso una raccolta di finanziamenti per ...
(Date:2/27/2015)... Pharmaceuticals, Inc. (Nasdaq: ISIS ) today announced ... loss (NOL) guidance and its cash guidance ending the ... financial results were due in large part to the ... from its partners.  Isis, pro forma NOL of $16.3 ... its 2013 NOL of $40.2 million. On a GAAP ...
Breaking Medicine Technology:Acsis CSO John DiPalo Named Supply & Demand Chain Executive 2015 Pro to Know 2Vectorious Medical Technologies completa una raccolta di 5 milioni di dollari 2Isis Reports Financial Results and Highlights for 2014 2Isis Reports Financial Results and Highlights for 2014 3Isis Reports Financial Results and Highlights for 2014 4Isis Reports Financial Results and Highlights for 2014 5Isis Reports Financial Results and Highlights for 2014 6Isis Reports Financial Results and Highlights for 2014 7Isis Reports Financial Results and Highlights for 2014 8Isis Reports Financial Results and Highlights for 2014 9Isis Reports Financial Results and Highlights for 2014 10Isis Reports Financial Results and Highlights for 2014 11Isis Reports Financial Results and Highlights for 2014 12Isis Reports Financial Results and Highlights for 2014 13Isis Reports Financial Results and Highlights for 2014 14Isis Reports Financial Results and Highlights for 2014 15Isis Reports Financial Results and Highlights for 2014 16Isis Reports Financial Results and Highlights for 2014 17
... HILLS, Calif., Aug. 23, 2011 The concept of ... unrealized prospect for many years since the advent of ... created micro-laparoscopic instruments in the past, but they did ... The most common complaints were how the extremely thin ...
... 2011 TRX, Inc. ( www.trx.com ) (OTCQB: ... automation, consulting and data services, announced continued success ... leading companies in the pharmaceutical, technology, financial services, ... manage their travel and procurement reporting needs. ...
Cached Medicine Technology:New Micro Laparoscopic Instruments for the Bariatric Surgery Allow for Less Scarring and Pain than Ever Before Possible 2TRX's Data Intelligence Solution, TRAVELTRAX, Helps Fortune 500 Corporations Gain New Insights Into Cost Savings 2
Straight shafts with 1 x 2 teeth and serrated handle with polished finish....
Straight shafts with 1 x 2 teeth and 6 mm tying platform. Wide smooth handle with polished finish....
Smooth 90 degree jaws with locking screw maintain proper stretch of sleeve for securing silicone bands....
Ergotec Vetriretinal Instrument System. Extra fine angled tips (3 mm). 20 ga. shaft tapering to 23 ga., 10 mm from tip. Overall length from rear rotation knob to tip....
Medicine Products: