Plant Health Care

/Plant Health Care

Do emerald ash borer die in winter?

Do emerald ash borer die in winter? This is a good question as it gets to be winter. You may be wondering if your ash tree will be spared because of emerald ash borer die-off in the winter? The fact is emerald ash borer do not die in winter. They spend the season beneath the [...]

Do emerald ash borer die in winter?2019-11-05T10:23:44-07:00

Your September Colorado Insect Checklist

September Colorado Insect checklist of some common insect-related events – Denver, South and East  This is a generalized checklist of when some of the more important insect related events tend to occur in the South and East Counties area. Year to year variations are considerable, and this should only be used as a guideline to anticipate and help [...]

Your September Colorado Insect Checklist2019-09-05T13:05:18-07:00

Zimmerman Pine Moth | How to Protect your Pine Trees

Although the Zimmerman Pine Moth isn't known to cause as much damage as the Mountain Pine Beetle or Emerald Ash Borer, it does have the potential to kill off or injure your pine trees.  If you have a Zimmerman Pine Moth problem the best solution is to have your tree sprayed by a professional. [...]

Zimmerman Pine Moth | How to Protect your Pine Trees2019-07-24T12:18:32-07:00

The Impact of Cutting Tree Roots

Cutting Tree Roots Impact provides more information about the impact of cutting tree roots on large trees, which is subtle but real. As Parker continues to develop new areas, tree root loss will be a persistent issue. "The effect of the stress of the trees can take from 3-6 years to manifest," according to the [...]

The Impact of Cutting Tree Roots2019-06-20T09:35:50-07:00

What are the odds that emerald ash borer emerges in 2019?

I'd say there is a 75% chance that emerald ash borer is detected within the city and county of Denver over the next three seasons and about a 25% chance it's found this year. Every year the odds go up a little bit and would increase even further if Broomfield and Westminster get hit this [...]

What are the odds that emerald ash borer emerges in 2019?2019-04-18T11:17:50-07:00

Deep Root Fertilization Promotes Healthy Trees

Maintaining healthy trees in Colorado weather can be a challenge and Castle Rock has trees worth protecting. One excellent, effective way to keep your trees healthy year round is known as deep root fertilization. Whether you are caring for your homes trees or commercial property trees, this tree fertilization will make the difference in making [...]

Deep Root Fertilization Promotes Healthy Trees2019-01-03T16:21:21-07:00

Two Common Species Recommended for Dormant Oil Treatments

Two Common Species Recommended for Dormant Oil Treatments Coming up in in late winter/early spring, many of our Castle Rock clients schedule dormant oil treatment on their aspen or pine trees. Given these are two key species in our area, dormant oil treatments are key in preventing needle scale on pine trees and oystershell scale on [...]

Two Common Species Recommended for Dormant Oil Treatments2019-02-07T12:54:51-07:00

Canopy management for trees is an effective tool to protect trees & shrubs while lowering costs

Sometimes, it takes extreme weather events to notice our trees. That becomes easier when high-wind and storms cause branches to fall, twigs to accumulate and trunks to topple. It’s at those times when our trees become more noticeable!  While acts of God are an exception rider in our home insurance policies, there are ways to [...]

Canopy management for trees is an effective tool to protect trees & shrubs while lowering costs2019-01-24T16:31:23-07:00

Are your trees dying or looking sick? ArborScape can help!

Are your trees dying or looking sick? The loss of mature trees can add up to ten of thousands of dollars in losses.  ArborScape is a licensed tree spraying company which believes in integrating pest management with a broader program to promote the health of your valuable trees and shrubs.  We offer a free estimate [...]

Are your trees dying or looking sick? ArborScape can help!2018-08-20T12:40:59-07:00

Why are root stimulator applications useful in tree care?

Root stimulator applications encourage tree root development but specifically the fine root hair development. A fall application should limit nitrogen as excessive nitrogen can upset the tree's natural cycle into winter dormancy. The main difference between root stimulator applications and deep root fertilization is that a root stimulator uses little to no iron and nitrogen.  In certain situations,  [...]

Why are root stimulator applications useful in tree care?2018-09-10T15:33:15-07:00

How to address dollar spot or those isolated brown spots on your lawn

What to do about ring spots on your lawn? This time of year, you may be noticing the development of rings or dollar sized brown spots on your lawn. This is referred to as ring spot or dollar spot and more formally as Necrotic ring spot (NRS). NRS is a disease of lawns that creates dollar-coined-sized or [...]

How to address dollar spot or those isolated brown spots on your lawn2019-07-30T13:27:38-07:00

2018 High Plains Drought Conditions Intensifying

  Drought is tightening its grip across the Southwest and High Plains regions as extreme-dry conditions spread throughout the area, per NOAA's High Plains Regional Climate Center data released May 8th. On the southern high plains, Oklahoma remains ground zero for the worst drought conditions in the United States; about 20 percent of the state is facing "exceptional [...]

2018 High Plains Drought Conditions Intensifying2019-06-05T16:52:30-07:00

About Merit Injection

Merit is a systemic injectible insectiside, best done in spring or fall for season long control of leaf- and needle-feeding insects, bronze Birch borer, and is effective in controlling Emerald Ash Borer when the pest population is low. Merit is based on the insecticide Imidacloprid, used to help control pests and insects on trees. It is [...]

About Merit Injection2017-01-31T16:32:58-07:00

2016 Emerald Ash Borer Roundup

As we know, the devastating, invasive parasite Emerald Ash Borer has been making relentless inroads in the midwest throughout 2016.  Following are updates to round out the year in news.  Find FAQ and basics on the Emerald Ash Borer here. Do you have concerns about your Ash tree? We'll be happy to come out and assess it [...]

2016 Emerald Ash Borer Roundup2019-07-30T14:59:44-07:00

Your August Colorado Insect Checklist

August Colorado Insect checklist of some common insect-related events - Denver, South and East  This is a generalized checklist of when some of the more important insect related events tend to occur in the South and East Counties area. Year to year variations are considerable, and this should only be used as a guideline to anticipate and [...]

Your August Colorado Insect Checklist2019-07-30T15:04:39-07:00

Elm Leaf Beetle Treatment

  Elm leaf beetles can be serious pests of elm trees throughout Colorado. These insects feed on elm leaves and cause them to dry up and die. This gives heavily infested trees an unsightly, general brown color. Repeated injuries also weaken trees and make them prone to branch dieback and wind injury. Elm leaf beetles [...]

Elm Leaf Beetle Treatment2019-07-30T15:04:53-07:00

Your June Colorado Insect Checklist

June Colorado Insect checklist of some common insect-related events – Denver metro and Boulder, Denver South and East, and West Metro  This is a generalized checklist of when some of the more important insect related events tend to occur in our area. Year to year variations are considerable - this should be used as a guideline to anticipate and help [...]

Your June Colorado Insect Checklist2019-07-30T15:05:22-07:00

Denver Sparks Initiative to Save Local Ash Trees from Emerald Ash Borer

The emerald ash borer (EAB) is a metallic green flying beetle that is known to bore into and kill ash trees it infests. With Boulder’s outbreak of emerald ash borer back in 2013, the devastating spread of infestation has caused massive numbers of ash tree deaths. Since Boulder has lost so many trees, and the State of [...]

Denver Sparks Initiative to Save Local Ash Trees from Emerald Ash Borer2017-06-06T14:26:24-07:00

Could my Oak Tree have Kermes Scale?

Is your Oak tree looking sick, scraggly, droopy, or all of the above? It could be due to the insect Kermes scale. What's that? Kermes scale is an insect pest of red and white oak trees, as well as pin and Gambrel oaks. Northern Red Oaks often become infested with Kermes scale, in particular, and are [...]

Could my Oak Tree have Kermes Scale?2019-06-12T10:06:30-07:00

Does my lawn have Snow Mold?

Snow mold is a fungus that grows on your lawn. This year our Denver neighbors see more of this fungal foe. If you notice discolored, matted down patches of lawn, it may be snow mold. via flickr user ~noricum What causes snow mold? It’s a mold we’ve seen more in the Denver area [...]

Does my lawn have Snow Mold?2019-07-30T15:06:33-07:00

Your May Colorado Insect Checklist

May Colorado Insect checklist of some common insect-related events – Denver metro and Boulder, Denver South and East  This is a generalized checklist of when some of the more important insect related events tend to occur in our area. Year to year variations are considerable - this should be used as a guideline to anticipate and help recognize common insect [...]

Your May Colorado Insect Checklist2019-07-30T15:00:13-07:00

Your April Colorado Insect Checklist

April Colorado Insect checklist of some common insect-related events – Denver metro and Boulder, Denver South and East  This is a generalized checklist of when some of the more important insect related events tend to occur in our area. Year to year variations are considerable - this should be used as a guideline to anticipate and help recognize common insect [...]

Your April Colorado Insect Checklist2019-07-30T15:06:44-07:00

Your March Colorado Insect Checklist

March Colorado Insect checklist of some common insect-related events – Denver metro and Boulder, Denver South and East  This is a generalized checklist of when some of the more important insect related events tend to occur in our area. Year to year variations are considerable - this should be used as a guideline to anticipate and help recognize common insect [...]

Your March Colorado Insect Checklist2019-07-30T15:06:58-07:00

What is Fire Blight?

Fire blight is a bacterial disease that affects certain species in the rose family (Rosaceae). It is especially destructive to apples, pears, and crabapples. The disease also can occur on serviceberries, flowering quinces, cotoneasters, hawthorns, quinces, pyracanthas, blackberries, raspberries, and mountain ashes. Leaves darken and wilt but remain attached to the tree (see above), giving [...]

What is Fire Blight?2019-07-30T15:01:08-07:00

Can I skip raking leaves in the fall? Should I?

Have you heard the latest? Turns out you don’t need to rake your leaves anymore!...except that that isn’t necessarily true. ArborScape Blog dissects the hype for reluctant rakers below. 2015 has been the fall for a chorus of sites and sources to rejoice gardeners and ardent landscapers with the refreshing news that not raking is [...]

Can I skip raking leaves in the fall? Should I?2017-06-06T14:26:26-07:00

Your November Colorado Insect Checklist

November Colorado Insect checklist of some common insect-related events – Denver metro and Boulder, Denver South and East  This is a generalized checklist of when some of the more important insect related events tend to occur in our area. Year to year variations are considerable, and this should be used as a guideline to anticipate and help recognize [...]

Your November Colorado Insect Checklist2019-07-12T09:01:28-07:00

Your October Colorado Insect Checklist

October Colorado Insect checklist of some common insect-related events – Denver metro and Boulder, Denver South and East  This is a generalized checklist of when some of the more important insect related events tend to occur in our area. Year to year variations are considerable, and this should be used as a guideline to anticipate and help recognize [...]

Your October Colorado Insect Checklist2019-07-12T09:01:27-07:00

Colorado July Insect Checklist

CHECKLIST OF COMMON INSECT RELATED EVENTS - Metro Denver/Boulder Area This is a generalized checklist of when some of the more important insect related events tend to occur in the Central, South and East Counties areas. Year to year variations are considerable and this should only be used as a guideline to anticipate and help recognize [...]

Colorado July Insect Checklist2019-08-20T12:24:46-07:00

What is Pine Sawfly? (and could it affect my trees?)

What is Pine Sawfly? Evergreen sawflies, in general, are caterpillar-like, sawfly larvae and usually prove common springtime pests. Several species feed on the needles of evergreen trees in groups and can cause extensive defoliation in some years. The adult sawfly is a stingless wasp that causes no harm. Light populations may not cause serious damage, [...]

What is Pine Sawfly? (and could it affect my trees?)2017-06-06T14:26:27-07:00

Drought Preparedness and Drought Remedies

As climate change accelerates, it's important to understand the ramifications of drought, as well as treatment options for your lawn and trees. According to the UCS, "Individual drought periods can be understood as discrete weather events. Climate changes occur over longer periods and can be observed as changes in the patterns of weather events. For instance, [...]

Drought Preparedness and Drought Remedies2019-07-30T15:01:34-07:00

Lawn Fertilizing Service

When is Lawn Fertilizing Service Effective? Lawn fertilizing service is effective in many circumstances. Time limitations, extenuating circumstances, and an unhealthy looking lawn are just a few times when you can use a little help from a lawn fertilizing service to care for your yard when you cannot. 1) When There Isn't Time to Fertilize [...]

Lawn Fertilizing Service2019-07-12T08:58:58-07:00

Tree Man Cometh – What to Expect from a Plant Health Care Estimate

People love their lawns and trees and your pride of ownership is what keeps us in business. Because your plant health care (PHC) estimate can be somewhat mind boggling, we put together a short description of a few of the common treatments we often prescribe for Denver tree services. Pre-Emergent Contrary to popular belief, pre-emergent [...]

Tree Man Cometh – What to Expect from a Plant Health Care Estimate2018-08-27T13:37:18-07:00

Deep Root Fertilization and Drought

Colorado is considered rough terrain for plants and wildlife alike.  This is due to our inconsistent climate and tendency to dryness.  Denver has temperatures that range from below zero in the winter,  to 100­°-plus in the summer!  Then dry winds whip across the High Rockies and into the Front Range, leaving only the the hardiest plants [...]

Deep Root Fertilization and Drought2019-07-30T15:08:51-07:00

MPB Slows and Six Links on Pests in Your Tree

Mountain Pine Beetles are the greatest threat to our Ponderosa and Lodgepole pine forest in the Colorado region. The good news is that in Colorado the pests' destruction seems to be on the decline. Did we find the solution to ridding ourselves of the pest? Not really. Like a barbarian horde, after the pillaging and [...]

MPB Slows and Six Links on Pests in Your Tree2019-07-12T09:11:33-07:00

Is Colorado Still in a Drought?

After today’s snow accumulation of 4 inches in south metro Denver and up to a foot in central Denver and the northwest suburbs, you may wonder, is Colorado still in a drought? While it helps this year, mandatory water restrictions are still in effect and are almost certain to remain so in 2013. Droughts are [...]

Is Colorado Still in a Drought?2017-06-06T14:26:29-07:00

Mountain Pine Beetle Evidence from Motorcycle Trip

  Recently I was able to take a motorcycle trip up through the mountains and do a few hikes that allowed me to refresh my spirits. The trip started at highway 285 and headed to Fairplay where I then headed north to the city of Dillon,CO where I then took highway I-70 back to town.  [...]

Mountain Pine Beetle Evidence from Motorcycle Trip2016-07-07T14:18:21-07:00

Common Questions About Shrubs and Bushes

  Should I fertilize my shrubs? Most soils are adequate for shrubs but if you feel it necessary use a product that is dense in nitrogen. You could also provide it with mulch that has grass clippings mixed in because grass clippings provide nitrogen. How much should my shrub be watered? It depends on the [...]

Common Questions About Shrubs and Bushes2019-06-12T13:05:39-07:00

Identifying Ash Borer

Identifying "clear winged" ash borer. Although we're now faced with the tenacious emerald ash borer, we've had our own Denver ash borer known as lilac /ash borer preying on our Colorado ash trees for some time. While the following tips help you identify ash borer success in your ash tree, it's more helpful to watch [...]

Identifying Ash Borer2019-07-30T15:12:18-07:00

IPS Beetle and Ash Borer

The major threat to your  ash and spruce trees are the ips beetle and ash borer. These nasty little insects could bore your lovely tree to pieces. Fortunately, this can be prevented by applying a protective spray, in April or May, that stops the beetles from destroying your tree. If you decide not to apply [...]

IPS Beetle and Ash Borer2019-07-12T09:01:26-07:00

Elm Tree Scale Spraying (Video 1:45)

Drew Maestas on the narration. We take our jobs seriously but not ourselves as you can tell by the narration. Jeff Disler's on the spray gun.  It takes a pump pushing 800 pounds per square inch (psi) to get full coverage in a 70 foot tree. [hs_form id="18"] This is a dormant oil treatment which [...]

Elm Tree Scale Spraying (Video 1:45)2019-06-12T13:23:04-07:00

Proper Bush Pruning Techniques

 While preparing a new page offering our bush trimming services, I came across one of the best articles about proper bush pruning techniques and overall plant health care that we've seen. "Proper pruning enhances the beauty of almost any landscape tree and shrub, while improper pruning can ruin or greatly reduce its landscape potential. In most [...]

Proper Bush Pruning Techniques2015-10-01T14:44:20-07:00

What are Dormant Oils?

  Dormant oils are used in integrated pest management (IPM) to control insect populations on trees and plants. Benefits include less environmental impact and better preservation of beneficial insects to the woody plant. Dormant oils increased in popularity over the past 50 years as homeowners and property managers looked for more natural and eco-friendly ways [...]

What are Dormant Oils?2019-07-30T15:12:41-07:00

Tree Evaluation Video | (Part 2) – Objective

Matt: Here we are approaching Arvada/Westminster. A commercial client who needs some ways to help their trees thrive. So we' re going to go over there and check it out. Jeff: The objective at this place is to just do all we can to help these trees thrive, in a very negative environment for them. [...]

Tree Evaluation Video | (Part 2) – Objective2017-06-06T14:26:35-07:00

Tree Evaluation Video (Part 1) – The Tree Whisperer

Matt: You'll notice the tree whisperer now getting into his special tree trance. Jeff: We gotta Ips beetle that has killed a spruce. We gotta ash borer that's killed off, most of the ash in there. Just whittled them down to basically to there's no canopy left at all. They have cut all the deadwood [...]

Tree Evaluation Video (Part 1) – The Tree Whisperer2017-06-06T14:26:35-07:00

Tree Service Calendar for Colorado

  ArborScape continually maintains a tree service calendar for Colorado so you can know the proper timing of plant health care applications. >>> Sign up here to receive an email alert when Tree Care calendar is updated. This tree care calendar is tied in to our service offerings.  When you apply treatment is as important as [...]

Tree Service Calendar for Colorado2019-06-18T13:50:45-07:00

Spruce Killer Strikes in Centennial

  August 9, 2011 - Centennial, Colo. The IPS beetle should really talk to the mountain pine beetle's agent. Because they get a lot more press then the spruce killer  IPS. Our plant healthcare consultant Jeff Disler took photos of these spruce trees, the latest home for an IPS beetle colony, in Centennial. "The spruce [...]

Spruce Killer Strikes in Centennial2017-06-06T14:26:35-07:00

Mountain Pine Beetle Treatment Options Expand

Colorado has approved a new tool in the battle against the mountain pine beetle.  Will it tip the balance of power to the human side? In April, TREE-äge, by ArborJet,  received expanded label approval from the EPA to control invasive beetles  such as: mountain pine beetle western pine beetle engraver beetles Because it’s injected directly [...]

Mountain Pine Beetle Treatment Options Expand2015-10-01T14:58:36-07:00

Tree Pest Control with ArborJet

  We have been working on some new articles to support our services and one of the things we are excited about is using tree injection as a way of controlling pine beetles and other pests and fungi. Yes we get excited by stuff like that.  Here is why it’s important to you. It virtually [...]

Tree Pest Control with ArborJet2019-07-30T15:13:26-07:00

Springtime Tree Pests

  Spring is the key time to protect your trees from wood-boring insects. Effective preventive treatments are available for your landscape trees! Ash Borer (clearwing) – Ash trees are the main targets for this insect. Attacks usually are found in the area where the branches attach to the main trunk. Although it may take two [...]

Springtime Tree Pests2018-04-05T08:55:37-07:00