How to maintain a pesticide-free lawn by Chip Osborne
Chip Osborne, President of Osborne Organics, LLC, has over 10 years experience in creating safe, sustainable and healthy athletic fields and landscapes through natural turf management. He has 35 years experience as a horticulturist and serves the New England and national markets.
Grass Seed suggestions: Use good quality pure grass seed with “no noxious weeds” written on the label (or less than 1% weeds in general). The best grass seed for the Northeast is a combination of Kentucky bluegrass, fine fescues, and perennial ryegrass. Many people are now adding 2-5% microclover (or regular white clover) which “feeds” nitrogen to the grass. One Maine grass mixture is “Yardscaping Mix”, developed by the State of Maine, available from Allen, Sterling & Lothrup Nursery in Falmouth, ME. For partial shade, try “CR Lawn Mix” from fedcoseeds.com. “No-mow” grass is available from Prairie Nursery and “Eco-lawn” is available from Wildflower Farm (catalogs).
Video: “Repair Lawn Bare Spots” Cornell School of Integrative Plant Science: Patch Weak or Bare Spots https://www.youtube.com/watch?v=-A4tYKU8M5M “At the first sign of thinning or bare spots in the lawn, loosen the soil…and apply perennial ryegrass at a rate of about 7 seeds per square inch, with nitrogen fertilizer at one-third the labeled rate. Ryegrass will germinate quickly (7–10 days) before the weeds get a chance to invade. Do this every few weeks in early spring and late summer. Overseeding is also an inexpensive method for replacing high-maintenance grass varieties with lower ones.” Note that you may prefer to use a grass seed mix rather than ryegrass alone. If desired, sprinkle with light layer of compost (1/4”) and a light layer of seed-free straw (weed-free). Water thoroughly with gentle spray.
A great way to prevent weeds in the spring is to overseed any areas that do not have thick grass growth.
How to do a SIMPLE SOIL TEST: How to Perform a Soil Test. You can order a soil test kit from the University of Maine Cooperative Extension office in Augusta, 207-633-7546 (The kit is free, but when you send in your soil you must pay $18 for the analysis itself.) University of Maine Cooperative Extension Kennebec Co
Got Grubs? unty Office 125 State Street, 3rd Floor Augusta, ME 04330-5692 Phone: 207.622.7546 (8:00 a.m. to 4:30 p.m.) extension.kennebec@maine.edu
Myths about Organic Land Management http://www.nontoxiccommunities.com/uploads/7/0/8/2/7082006/mythsaboutorganic.pdf
Click here for a Cost Comparison of organic vs chemical land management (pdf)
Consider shrinking your lawn and planting native Maine plants: What plants to use and what plants to avoid, https://extension.umaine.edu/publications/2500e/
List of Organic-Compatible Products Relating to the Hallowell Ordinance.
What Can I Use LMO v01272024 (pdf)
DownloadCompost and Grass Seed GGHH v01272024 (pdf)
DownloadIs there a less toxic way of achieving my intended purpose? There almost always is!
“Least Toxic Control of Weeds” https://www.beyondpesticides.org/assets/media/documents/alternatives/factsheets/Least%20toxic%20control%20of%20weeds.pdf
See South Portland website as well - "How To Manage Weeds"
Got Grubs? Tough pests, but count to 10.
https://drive.google.com/file/d/1dWJEthWAsr48rv9JPzasjTjrdxO3pHMt/view?usp=drive_link
"Least Toxic Control of Pests": click on one of the pests (bugs, plants) pictured, to learn more about control: https://www.beyondpesticides.org/resources/managesafe/choose-a-pest?pestlocation=outdoor#headerphoto
See South Portland website as well - "How To Manage Pests"
Integrated Pest Management (IPM) and Organic Pest Management (OPM) are quite different.
You decide.
LMO IPM or OPM (pdf)
DownloadSEARCH THE DATABASE: The Organic Materials Review Institute (OMRI) reviews and lists pesticide products OMRI has a searchable database. Search by product, generic materials, company name, product name, or product type. (Note: this is a huge database because it includes all agricultural products.).
MOFGA: Natural Sources of Plant Nutrients: https://www.mofga.org/resources/fact-sheets/natural-sources-of-plant-nutrients/
There are many, many ONLINE stores, and you can research for your needs. We cannot provide a comprehensive list, and only a few are noted below:
More comprehensive information presented by: Maine Organic Farmers and Gardners Association
Featuring: Caleb Goossen, PhD
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