Tag Archives: lawn

The Cornell Turf Show: fastest 30 minutes in turf

Every other Friday, starting on March 12th and ending the second week in May, Cornell Turf Guru, Frank Rossi, will have a guest talking about sports field management. This week, former graduate student, Chris Sitko, will be on to discuss sports field safety and the high demand school districts will be placing on sports field early in the season. Topics and speakers will be updated on the Cornell Turf website, Twitter account, and Facebook page as they are scheduled.There will be a golf focused webinar every Thursday through this time and topics relevant to lawns will alternate with sports fields on Fridays. It’s a good idea to check on the topics for those not specific to sports fields, as there might be something of relevance to you. For example, the webinar series kicks off Thursday, March 11th, with Art Degaetano, Professor in the Cornell Department of Earth and Atmospheric Sciences, who will provide us with a winter weather review.

Can’t make a session live? Similar to last year, the webinars will be recording and posted to YouTube. (You can check out the 2020 webinars here.) We’ll also be posting the audio as podcasts for those who enjoy that medium.

All the webinar information can be found here on our website which will be updated periodically with guests and recordings: https://turf.cals.cornell.edu/news-2/webinars/

Ticks and Schoolyard Edges

The time of the falling leaves has come again. Once more in our morning walk we tread upon carpets of gold and crimson, of brown and bronze, woven by the winds or the rains out of these delicate textures while we slept. – John Burroughs, The Falling Leaves

image of a man in long pants and sleeves, a baseball cap, and ear coverings using a leaf blower. In front of himn leaves are being blown towards the camera.

Leaf blowing leaves is a common practice, but does it cause a risk for more ticks?

A recent study, Artificial Accumulation of Leaf Litter in Forest Edges on Residential Properties via Leaf Blowing Is Associated with Increased Numbers of Host-Seeking Ixodes scapularis Nymphs published in the Journal of Medical Entomology, showed that areas where leaves were raked or blown into forest margins tripled the number of blacklegged tick nymphs compared to areas where leaves were not artificially accumulated. (There was no observed impact on lone star ticks.)

chart showing that 14 ticks were found within the woods, 51 along the wood edge, 12 3 meters into the field,1 found 6 m into the field, and 3 on the technician.

Most ticks were found along the woodland edge.

Combine this with the findings of a Cornell study, Active surveillance of pathogens from ticks collected in New York State suburban parks and schoolyards, and it is clear that woodland edges are the areas of highest risk for students to encounter ticks. Fortunately, most students don’t spend much time in these areas. Unfortunately, students will chase stray balls into these areas when ticks are furthest from their minds.

What can you do to protect students from these tick risky areas? Step one would be to monitor your school grounds for ticks. This low tech monitoring technique can easily be accomplished by a coach, playground monitor, or even students. Knowing that ticks are active can allow for some adjustment of play, like putting up cones to let students know areas are off limits.

Is there an area with consistently high tick activity? Installing fences or netting can prevent stray balls from entering wooded edges. Think of it as reverse exclusion – in this case, we’re keeping the students out of the pest areas.

Keep in mind that blacklegged ticks prefer high humidity, so look to reduce shady and damp areas where students spend time. We can modify parts of the school grounds to make them less hospitable to ticks by:

  • Removing leaf litter from wooded edges in high traffic areas
  • Removing trees shading play areas if monitoring shows those areas have tick activity
  • Replacing wood mulch, which can store moisture, if monitoring shows tick activity,  with a different, drier option
  • Widening trails to reduce the risk of students brushing against vegetation
  • Eradicating invasive plants, such as Japanese barberry, honeysuckle, and multiflora rose, that easily establish along wooded edges, and have been associated with higher concentrations of ticks carrying disease-causing pathogens

For more information on ticks and schools, check out our updated fact sheet Understanding and Managing Ticks – A Guide for Schools, Child Care and Camps. Additional information can be found on our website Don’t Get Ticked NY.

Fertilizer and the Law

A deep, extensive root system helps cool-season grasses build up reserves to get through the winter, green up top growth in spring, and minimize vulnerability to insects, diseases and summer drought. Nutrients released from the soil, grass clippings and late season fertilization (feeding) will promote root growth.Lawn Care: The Easiest Steps to an Attractive Environmental Asset

photo of man wearing shite shirt and tan pants pushing a small fertilizer spreader on a soccer fieldWhy we would talk about fertilizer on an integrated pest management blog? Fertilization helps grow healthy turfgrass. Dense stands outcompete weed seeds. Extensive roots can withstand some insect feeding without impacting turf quality. Proper fertilization provides your grass with the proper nutrients for growth and recovery.

And now is one of the best times for fertilizing sports fields, but it has come to my attention that the legality of fertilizer application is in question. There is a rumor that one needs to be a certified pesticide applicator to apply fertilizer to school grounds. We’ll label that as fake news. Addressed in an earlier blog, some wonder if they are restricted under the Child Safe Playing Fields Act. The answer to that question is no.

But that doesn’t mean that there are no fertilizer rules. Here are the caveats:

  • Combined fertilizer and pesticide products (such as weed and feed) are covered under the Child Safe Playing Fields Act and do need to applied by a certified pesticide applicator.
  • Fertilizer use does fall under the NYS Nutrient Runoff Law, which prohibits:
    • Applying fertilizer containing nitrogen, phosphorus, or potassium between December 1 and April 1 (Nassau and Suffolk County have their own local laws restricting application dates)
    • Applying fertilizer containing phosphorus unless you are establishing a new lawn or a soil test shows the need for phosphorus
    • Applying fertilizer within 20 feet of a water body
    • Leaving fertilizer on impervious surfaces such as sidewalks, parking lots, or driveways (fertilizer must be swept up, not washed off with water)

So now that we know fertilizer can be applied to school grounds, what is the minimum that should be done now to produce pest resistant turfgrass on fields that are used year round?

illustration of turf growth showing that top growth surges in March through May, declines June through August, and then picks up again in August through September. Roots grow March through May and again September through October.

Fertilizing in the fall encourages more root growth.

  • Fertilizing -Apply 1 pound of 50% water soluble nitrogen per 1,000 sq. ft. in September and ½ pound of 100% water soluble nitrogen in mid-October. Note – if you do not have irrigation, it is worth waiting until the day before rain is predicted to ensure the fertilizer is watered in.
  • Mowing -If the grass is growing, mowing should be conducted at least twice a week. Mowing increases shoot density by increasing tillering (stems that develop from the crown of the parent plant). More tillers means more traction and cushioning.
  • Overseeding -Seed perennial rye at 2 pounds per 1,000 sq. ft. weekly in high-use areas. The athletes’ cleats will make the necessary seed to soil contact. This year’s drought makes this practice tricky. If you can borrow irrigation equipment, do so.

What if I can do more than the minimum?

a bucket filled with mix of soil and turf seed being poured into a bare area on a lawn

A divot mix of seed and soil can help fill in bare spots on the field. Click on the image to view a video on patching weak or bare spots.

  • Fertilizing -Conduct a soil test to see if other nutrients are needed in addition to the nitrogen.
  • Cultivating -Concentrating on high-use areas, solid tine cultivate in multiple directions to maintain infiltration of air and water.
  • Overseeding -Have a mixture of one part seed to ten parts soil available so coaches and players can repair divots left after heavy use.
  • Watering -Maintain adequate soil moisture but keep surfaces dry to maximize traffic tolerance. Irrigate if you can see your foot prints after walking on the turf.

    photo of twitter handle, @Cornell_Turf, Cornel Turf website, turf.cals.cornell.edu, the motto "Stay connected to the source for turfgrass information in the Northeast US

    The official Cornell Turfgrass twitter account will provide you with timely turf care information.

For more information on maintaining safe, functional athletic fields, visit http://safesportsfields.cals.cornell.edu. You will find different maintenance schedules based on number of seasons used and resources available, detailed information on different management practices, and information on “Duty of Care”, a legal obligation to a standard of reasonable care. For the most up-to-date information, follow the Cornell Turfgrass twitter account.

Announcing Updates to the Northeastern IPM School Best Management Practices Website

northeastipm.org/schools//

photo shows a screen shot of the front page of the school best management practices website

Our New Look!

Back in 2013, the Northeast School IPM Working Group (NESIWG) received a Partnership Grant from the Northeastern IPM Center to develop a Best Management Practices (BMP) website.

northeastipm.org/schools//

logo of the northeastern I P M center

Reducing pest and pesticide exposure is important for children, just as it is for district staff and visitors. But schools are especially challenging to manage because they include such varied and heavily used settings such as classrooms, cafeterias, laboratories, auditoriums, theaters, playing fields, playgrounds and gardens.

photo shows signs of damaged turf on a lacrosse field due to over use

The burden of use on an athletic field. (NYSIPM photo)

With the help of many contributors, the NESIWG both created and collected resources for school IPM. We wanted to help administrators, school boards, parents, teaching and support staff, athletic directors, groundskeepers, kitchen staff and custodians how a designated pest management plan can reduce both pests and the need for pesticides. The website was a success.

By 2018, NESIWG members saw the need to update old links and fill out gaps in the content. Eager to keep the website a useful and comprehensive resource, the working group applied for and received a NEIPM Communications grant. Again using focus groups, the following changes were made:

  • a reorganization of the pest species list,
  • additional information on relevant pesticide use regulations in all Northeastern states,
  • grouping resources by stakeholder roles,
  • the addition of two new pages: Breakfast in the Classroom and Playgrounds

Additionally, the recent grant included an update of the working group’s homepage, a new ranking of regional school IPM priorities, a current membership list and an index of school IPM contacts in the Northeast.

graphic shows front of new brochure announcing the changes in the school best management practices website

Front (Outside) of Brochure

Now, with changes soon to be complete, the NESIWG welcomes your visits and assistance in sharing this helpful site. After all, finding and using the website is key!

Back of new brochure advertising the changes to the Best management practices for schools website

Back (Inside) of Brochure

PLEASE CONSIDER DOWNLOADING OUR BROCHURE, printing a few and sharing them.  OR SHARE THIS LINK.

northeastipm.org/schools//

Vengeful veggies – contributed by Paul Hetzler

I know that vegetables are not really vindictive, but it sounds crazy to talk about them as a burning hazard. There are a number of plants whose sap can cause serious chemical burns, and one of them is a common and widespread invasive species, the wild parsnip.

Wild parsnip provides an opportunity to expand our vocabulary. It is phytophototoxic.

A member of the same family as Queen Anne’s lace, wild parsnip generally reaches a height of between three and seven feet. From late June through mid-July, it is topped by pale greenish-yellow, umbrella-like flower clusters, which form seeds around the end of July. Wild parsnip can be found in vacant lots as well as in yards and gardens, but because it’s so effectively spread by mowing equipment, mile upon mile of it can be seen along northern NY State roadsides.

The root of this weed is in fact edible. It’s genetically identical to the parsnip we might plant in our garden. So what exactly is bad about wild parsnip?

Giant hogweed gets a lot of press due to the fact that, well, it’s giant. A flower that grows 15 to 20 feet in one season is impressive. And hogweed is scary, too, because its sap is phytophototoxic. The tongue-twister word means if its sap gets on your skin, it reacts with sunlight to cause second- and third-degree burns. Such burns often take months to heal and may actually leave a permanent scar. If sap gets in one’s eyes, it can even cause blindness.

Well guess what—wild parsnip sap does the same thing. It’s a small consolation, but you can’t get burned by merely brushing up against wild parsnip—a stem or leaf must be broken to expose the sap. And after the plant dries it is safe to handle, unlike poison ivy, which can cause a severe rash even if you dried it for a couple years (which is unlikely, but if you were considering it, be warned). All the same, it’s probably a good idea to wear gloves and long sleeves when handling wild parsnip.

As everyone knows, when fighting a zombie, you grab a shovel and aim for its head. The same with wild parsnip, except you aim for its feet. It has a taproot That’s tough to pull out, but it is easily cut with a shovel. It’s not necessary to get the whole root—just dig as deep as you can to sever the taproot, pry up until the plant tips over, and it will die. You don’t even have to touch it.

If you’re hopelessly outnumbered by wild parsnips, at least mow them—wearing protective clothing and eyewear of course—to keep them from making seeds. But unless you have a Level-A Hazmat suit, don’t use a string trimmer on it. Mowing will buy you some time to muster shovel-wielding townsfolk (pitchforks and torches are optional) to help you.

Glyphosate, the active ingredient in herbicides like Roundup, is effective against wild parsnip. Herbicide is most effective when used on first-year plants (“rosettes”), ones which have no flower stalk, in late summer or early fall. Spraying early in the season will kill the top but not the root, so the plant may come back if treated in spring or early summer. (EDITORIAL NOTE: New York’s Child Safe Playing Field Act requires that most pesticide applications, including glyphosate, made on the portions of school or childcare facility grounds frequented by children may only be done when approved as an emergency exemption. For more information: https://blogs.cornell.edu/schoolchildcareipm/tag/child-safe-playing-fields-act/page/3/ )

I hope you have a safe and enjoyable summer, and that the only scorching you encounter is that walk across the hot beach sand.

For more information on wild parsnip, giant hogweed or other invasive species, contact your local Cornell Cooperative Extension office.

–Paul Hetzler
Cornell Cooperative Extension of St. Lawrence County