Plant Health Care Update During This Heat Wave

This month is starting out HOT. With temperatures expected to remain in the 90’s for the next couple of weeks, precautions during these extended times of extreme heat is essential to maintain good health for people AND for the landscape. The stress on trees, shrubs and lawn presents in a variety of ways, so it is important to recognize the signs and head off any damage to plants. As we maintain your site, be assured we are keeping a watchful eye for issues or signs of stress.


As a safeguard against damaging plants, weed control will not be applied for the next two weeks. Herbicides break down in extreme heat which renders them ineffective against weeds and harmful to plants. Treatments will resume when this current heat wave has passed and conditions are safe for use.


Our teams are continuously watching for the onset of plant health issues and have identified chinch bug damage at a few sites this week. Affected lawns appear in the form of brown or bare patches of grass, and may cause animals to dig in the turf. Since chinch bug treatment is not affected by heat, these applications will be ongoing as issues are identified.

If you have any questions or requests for services, please contact your Account Manager directly, or call our main office at 847/549-1361, Monday-Friday 8:30am-5:00pm.


Manuel Mercado: 847/514-8452 /

Lisa Smith: 224/275-4233 /

Dawn Tecza: 847/849-6324 /

Tom Thomas: 847/513-4796 /

Bill Wegener: 847/770-8492 /

Brock Williamson: 847/401-0873 /

Jim Wollney:  847/514-8453 /


Lucio Torres: 847/417-1618 /

Lisa Wasik: 847/313-5706 /

Pests In The Corporate Landscape

We hope you enjoyed the beautiful weekend! As our teams maintain your property they are always watching for signs that plants are struggling or that pests or disease are present. Our goal is to treat situations as soon as we are able in an effort to mitigate any damage to your landscape. This year, because of a mild winter and excessive moisture in May, we are exceptionally mindful since we expect more challenges than normal, and will be working diligently to minimize any adverse effects.

For those that are currently contracted for Plant Health Care Services, be assured we are treating issues as they arise.


As part of our effort to keep you current on issues that affect your landscape, we have a couple of updates regarding pests our teams have become aware of on several properties.

First, the periodic Cicada is appearing in landscapes throughout the Chicagoland area, and Illinois more broadly. When they emerge from the ground the mature female deposits her eggs in tree leaves. As these eggs hatch, the nymphs drop to the ground and burrow in the soil to feed on root sap, emerging either 13 or 17 years later, bringing their life full circle.

You may have already noticed their sound, and while noisy and maybe a nuisance, there is no effective treatment other than picking them off by hand or washing them away with a garden hose.

Second, we have Leaf Beetles on viburnum that are turning healthy foliage into lacy leaf skeletons. The beetle’s life cycle follows one full year. Emerging from the soil in spring or summer (depending on weather), the adult females lay eggs throughout the summer in leaf holes they’ve chewed. Next year the eggs hatch and the larvae continues munching away on viburnum leaves through early spring, then crawls back into the soil to pupate and emerge later in spring or summer, completing the cycle.

To minimize their number and damage it is recommended to cut out affected twigs. For more extensive issues, treatment can be applied to further reduce their impact. If any problems are found on your property, your Account Manager will contact you with a plan of action.

June Landscape Services

Good morning! June is here, and along with this month comes the warmth of summer and everything that rides in on its wake. Our focus over the next several weeks will be minimizing pests and diseases and mitigating the damage they cause, along with ridding planting beds of unsightly weeds. Besides being unattractive, weeds more importantly soak up nutrients in the soil that desirable plants require for strong growth, so preventing them is essential for a healthy professional landscape.


  • Weed control – We will be addressing weeds in planting beds this month. With a very mild winter, record rains in May, and above normal temperatures in May, coupled with the fertilization of beds in April, these conditions have led to the perfect storm of weeds. Because of that, our crews are working diligently on weeds in beds as well as non-selective weed control for weeds in cracks.
  • Disease and insects – Also due of the mild winter, the pest population is expected to be high with many pests having overwintered, unlike with normal winters when pest populations are kept in check by more sustained freezing temperatures. Many of you have already authorized services to control these issues. Your Account Manager along with their Team will monitor your sites for potential risk and notify you should you require services to suppress activity.
  • Mosquito control – RP offers mosquito abatement services to keep these pests from making your outdoor space uncomfortable. Your Account Manager is happy to provide a quote for this service upon request.

If you have any questions or requests for services, please contact your Account Manager directly, or call our main office at 847/549-1361, Monday-Friday 8:30am-5:00pm.

May Landscape Services

Happy Friday! We hope your spring is going well as the Chicagoland area greens up under warmer temperatures and plentiful rain. Our teams continue to practice safe physical distancing while we tend to your landscapes, ensuring a safe work environment for employees and clients. To maintain safe distancing while onsite, we encourage clients to call or text our team to communicate (see cell phone numbers below). We remain sensitive to any concerns you may have and appreciate your understanding.

We are focusing this month on providing plants a healthy start for the season including promoting strong root growth without competing with weeds for nutrients. This combination ensures a lush, green carpet of grass.

In addition, we encourage planting at this time of year while there is an abundance of rain to provide plants a good start. Construction projects can be coordinated through your Account Manager to make sure your site is in optimal condition.


* Turf synthetic fertilization with pre-emergent crabgrass control.
* Weed control for beds.

If you have any questions or requests for services, please contact your Account Manager directly, or call our main office at 847/549-1361, Monday-Friday 8:30am-5:00pm.


Manuel Mercado: 847/514-8452
Bill Wegener: 847/770-8492
Dawn Tecza: 847/849-6324
Brock Williamson: 847/401-0873
Jim Wollney:  847/514-8453

Spring Has Arrived!

We hope you are as excited about spring arriving as we are!! We are in the final throes of preparation for the upcoming season, and while we put the finishing touches on our schedule, we thought it was appropriate to address the uncertainty regarding the current COVID-19 pandemic. All of our lives and businesses have been disrupted by this significant health concern and we are navigating this new landscape as it unfolds just like all of you.  We want to simply assure you we are taking extra precautions in our offices and in our production work on sites to do our part to minimize the chance of spread. We realize this health concern has disrupted businesses and individual lives across the globe, including here in the Chicagoland area. Below are some of the initial efforts we are doing at Rosborough Partners to protect all of you and our employees: 

  • Additional levels of cleaning and disinfecting of tools, equipment and vehicle surfaces, over and above our already stringent practices.
  • Postponement of all large team member meetings until further notice.
  • All team member training and orientation will be completed in smaller groups to follow recommended protocol of groups no larger than 10.
  • We are reducing team members working at all 3 of our locations to below the recommended protocol of 10, with remaining team members working remotely 

 With the above modifications in place, our teams are looking forward to beginning spring cleanup operations in these next couple of weeks. As always, if you have any special requests, please let us know.  Spring is a time of rebirth, rejuvenation and renewal and we could all use a bit of that right now!  So, we look forward to seeing and connecting with you over these next few weeks. Know that the beauty of nature is timeless, and we feel blessed to be able to add some beauty to all of your lives … especially now more than ever!

We are grateful for your continued confidence in our care and stewardship of your landscape and gardens. It is a privilege to serve you!  Blessings and good heath to you and your families!

Phil Rosborough, President
Blaine Owens, Principal


Frostbite & Tips to Prevent It

It’s more than chills and chattering teeth. Frostbite can lead to severe, permanent injury to body parts exposed to bitter cold. The good news is you can avoid it by dressing warmly, drinking lots of water, and knowing when to stay in.

What Is Frostbite?

It happens when the skin — and sometimes the tissues — of your ears, nose, fingers, or toes freeze in extremely cold temperatures. It can be sneaky. The affected places go numb, but it’s what you don’t feel that can do serious damage. In severe cases, frostbite can require amputation, which is removal of the body part.

To avoid frostbite, you’ll need to rely on all your senses. Stay alert for:

Exposed skin that starts to look red. It might throb, prickle, burn, or sting. These are usually the first signs.
Areas that look yellowish-gray or white, waxy, or feel too firm
Lack of feeling in a part of your body that’s exposed to cold
Dress for Excess

The only sure way to prevent frostbite is to limit the amount of time you spend outdoors in extremely cold weather. But if you plan to spend time outside, dressing right is a must. Here are some tips:

Layer up. You’re not after the snowman look. Play it loose, light, and comfy. Flowy layers keep warm air in, close to your body.

Wear a synthetic fabric next to your skin. Undergarments that pull moisture from your body are best. Cover those with a fleece and wool layer. It’ll help retain body heat.

Top off your layers with outerwear that wards off wind and water. Down jackets and ski pants are good choices.

Tuck in your toes. You’ll need to wear not one – but two – pairs of socks. Like your clothing, the pair underneath should wick moisture from your skin. Next, pull on a pair made of wool or wool-blend. Foot warmers can work well, too. Just make sure they’re not too bulky beneath your boots; tightness hampers blood flow.

Make sure your footwear is waterproof and covers your ankles. You don’t want snow and dampness to seep in.

You have a greater chance of getting frostbite if your clothes and footwear get wet. Make sure your layers stay dry.

Don’t forget your fingers. Mittens are your best bet to protect your digits from frostbite. If you prefer gloves, choose a cozy pair and try moisture-wicking glove liners under them.

Heading out. A hat or headband made of fleece, heavy wool, or wind proofing fabric is your best choice. Make sure it covers your ears. Add a face mask or scarf if the cold is extreme. It’ll protect your face and nose. It’ll warm the air you breathe in, too.

H2O to go. Drink lots of water. Down at least a whole glass and eat a good meal before you venture out. Avoid alcohol. It makes you lose heat more quickly. Want a sweet treat to bump up your body heat? A mug of hot cocoa might hit the spot.

Mind the Clime
Trust your weather forecast, and note those wind-chill readings. If it’s super cold and windy, frostbite can attack exposed skin within minutes. Take along emergency supplies in case you can’t get back as quickly as you plan. Include extra clothing for warmth.

Check in With Friends
It’s best to be prepared, whether or not you think you’ll need help. Before you venture out, let people know where you’re headed and when you’ll be back. If you’ll be somewhere remote, tell them which route you’re taking.

Keep It Moving
Staying in motion while you’re out keeps your blood flow up and helps you stay warm. Be sure you don’t overdo it, though. You’ll need your energy in the cold.


Here at Rosborough Partners we take advantage of these winter months to hone our skills with training and education. Our teams are currently going through hands-on training and attending seminars to learn the latest products, tools and techniques. Staying on top of technology and innovation elevates the level of service we provide and reflects back in your stunning sites.

This month our staff is attending a wide variety of training to gain skills and obtain or renew certification on an array of beneficial landscape products and services. Our goal continues to be providing the highest level service to our clients, and these courses help to achieve that end.


We hope you are having a great week. As we move further into autumn, our team is planning for winter and how to best service your landscape throughout the season. Based on the past few years, we anticipate large temperature swings and elevated levels of precipitation that leave behind winter storm damage and debris, along with potential major snow melts.

Because of the pattern of the past few years, we are offering winter landscape policing services for your property. These services can include, but are not limited to:

  • Fallen tree limbs and broken branches
  • Hanging/hazardous branches or trees
  • Shrub damage
  • Garbage blown onto property
  • Parking lot and island debris
  • Shoreline clean up

Winter policing packages can be customized by service needs and frequency based on your specific requirements, and services are available on a Time & Materials basis. Our staff will work with you to formulate a plan that mitigates the effects of winter’s damage and that meets your needs and budget.

If you have any questions or would like to request winter policing services, please contact our main office at 847/549-1361, Monday-Friday 8:30am-5:00pm.

Plant Health Care

As everyone is aware, we have had a record breaking start to the season.  Record snow in April, record rain in May, and a wet start to June.  These extreme weather conditions have resulted in an increase in the plant disease and pest issues listed below, which we are diligently monitoring on client sites. In particular, Doublefile Viburnum and Burning Bush were hit hard, and many have not come back this season.  The Rosborough team is inspecting for these plant health care concerns for our clients and providing recommendations as needed.

Red thread on turf
Dollar spot on turf
Mites on burning bush
Leaf beetle on viburnum
Scale on magnolias and euonymus
Leaf miner on boxwoods and hawthorn trees

Our teams are working hard to apply the appropriate treatments for each of these issues, and in many cases re-applying due to rain.

If you believe you have a matter that requires attention or diagnosis, please contact our office: 847-549-1361 Monday-Friday 8:30am-5:00pm.

Product Replacement For Weed Control


We hope this communication finds you well.  As many of you are probably aware, there have been reports in the media regarding Roundup non-selective weed killer, and in particular the active ingredient glyphosate.  We are aware of the reports and are paying close attention to the court case in San Francisco.

Glyphosate is the most commonly used herbicide and has been used safely for more than 40 years by landscape professionals around the world. It also continues to be approved by the EPA, and studies have shown when properly applied is safe and effective.  However, we understand there could be concerns from media coverage.

Therefore, effective August 1, Rosborough Partners will be switching to a non-selective weed killer that is a non-glyphosate alternative and dropping Roundup from our inventory.  This new product is FDA regulated, safe to use, and we believe its effectiveness will be comparable.

If you have any questions or requests for service, please contact your Account Manager or Plant Health Care professional directly, or call our office:847/549-1361 Monday-Friday 8:30am-5:00pm.


  • Manuel Mercado   847/514-8452
  • Jodi Legieza          224/275-4233
  • Dawn Tecza           847/849-6324
  • Bill Wegener          847/770-8492
  • Brock Williamson  847/401-0873
  • Jim Wollney          847/514-8453


  • Jose Mercado:  847/417-0841
  • Terri Thornton:  847/514-845
  • Kathy Rockett:  224/275-1377


  • Lucio Torres:  847/417-1618
  • Lisa Wasik:    847/313-5706