Arborjet Revolutionary Plant Health Solutions


The Years of Living Dangerously, Episode 2: End of the Woods


Have you been watching the Showtime global warming disaster series, The Years of Living Dangerously? In the second episode, former Governor Arnold Schwarzenegger joins an elite team of wild-land firefighters known as “Hot Shots” as they battle a new breed of forest fires made more deadly by climate change. They discover another killer wiping out trees at an even faster rate than the fires: Bark Beetles.

Bark Beetles

Bark Beetles have killed more trees than all fires combined over the last ten years in US and Canada. “Freezing winter temperatures used to kill the beetles, but now with longer summers, they can reproduce twice in a single season and are infesting whole new sections of North America. The beetles have been able to move hundreds of kilometers further north because it’s now warm enough for them to live there.


The death of all of these trees from beetles and fires is setting off a vicious cycle. All of the carbon released by the dead trees will speed up the rate of climate change, which will only lead to higher temperatures, more beetles and more fires. Wildfires in the United States burned four million acres in 2013. They destroyed more than two thousand structures and caused nearly a billion dollars in damage. The Forest Service spent over a billion dollars fighting fires and for the seventh time in the past twelve seasons they have run out of money. Forcing them to siphon money from other programs to pay the bills.” This is the new normal of our fire seasons.

What’s next?

One prediction is that if the destruction continues at this rate for the next 50 years we can expect to lose about 50% of our forests. What kind of a landscape will it be if half the trees are gone? What about rising sea levels, higher temperatures and extreme weather?


Join us in the coming weeks as we examine the shocking new National Climate Assessment issued earlier this month by The White House.

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Tips for Shopping for a Cordless Drill

Time for a new drill?  Arborjet is pleased to share the following tips to help you find exactly what you need.

Price: What’s your budget?

The average 18V cordless drill costs aboudrill pict $200, with prices ranging from $100 to $400.

Power: Balance power against weight and cost.

The average 18V cordless drill can generate maximum torque levels of about 470 in-lbs. while top-end 18V cordless drills can deliver up to 650 in-lbs.

Speed: Faster is better.

Speed usually comes at the expense of larger motors and heavier weights.  The average 18V cordless drill has a maximum drill speed of about 1,525 RPM while the best 18V drills have top speeds around 2,000 RPM.

Weight: Lighter weight reduces fatigue.

The average 18V cordless drill weighs about 5-lbs compared to the lightest 18V drills only weigh about 3.5-lbs.

Battery: Run-time is never long enough.

Some 18V cordless drills have 2-3 times the run-time of others, so look for 18V drills that have Lithium-Ion batteries which also reduce the weight of the drill. The most important measure is the battery amp-hour (Ah) rating. The average 18V cordless drill has a rating of 2.0 Ah, while the best drills run up to 3.5 Ah.

Features: What’s important to you?

We like that the charge indicator greatly reduces the frustration of running out of power at the worst of times. Also, a side-handle is a good option when you’re trying to control high levels of torque.

Durability: The all-metal trade-off.

Consider an all-metal gearbox and chuck. Nylon and plastic are lighter weight, but they can wear-out and crack over time. The trade-off is higher weight, so if weight is critical to you, than a non-metal gearbox or chuck is acceptable.

Warranty: Always check the warranty!

The average for an 18V cordless drill is about 3-years, with Panasonic having the shortest, and Milwaukee and Hitachi having the longest.




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Comparing the benefits of lithium ion batteries versus nickel cadmium (NiCd) or nickel metal hydride (NiMH) batteries for cordless tools.

shutterstock_80766109During the last decade the lithium ion battery technology has been introduced into power tools. The benefit of lithium ion for a given voltage, is smaller in size and lighter in weight than a nickel cadmium (NiCd) or nickel metal hydride (NiMH) battery. In addition, lithium ion has virtually no self-discharge, allowing it to be stored for months without losing charge.

Lithium ion has an ergonomic advantage over the other battery chemistries. But what about performance and durability?

Rule 1: Lithium Ion Does Not Mean More Power. As power increases, a tool can perform more difficult applications and do the applications faster. Power is determined by the voltage of the battery and the efficient design of the motor, transmission and mechanism. Increasing voltage or efficiency increases power. Note that battery chemistry does not influence power. An 18V lithium ion battery has the same potential to deliver power as an 18V NiCd battery because they are the same voltage.

However, the ergonomic advantage of lithium ion batteries allows manufacturers to make higher voltage tools and, thus, more power without increasing weight.

Rule 2: Lithium Ion Does Not Mean More Run Time. The run time (or number of holes drilled on a single battery charge) is determined by three factors:

1. Battery voltage

2. Battery capacity (amp-hour)

3. Efficiency of tool design

Increasing voltage, amp-hour or tool efficiency improves run time. NiCd and NiMH batteries range in capacity from 1.3Ah to 3.0Ah. In comparison, lithium ion batteries range from 1.1Ah to 4.0Ah.

Remember, amp-hour is only one factor in run time, just as the size of the gas tank is only one factor in how far a vehicle can drive on a tank of gas. The best measure of run time is how many holes are drilled or how many boards cut on a single battery charge. Applications per battery charge factor in voltage, capacity and the efficiency of the tool.

Rule 3: There Are Many Types of Lithium Ion Batteries. There are hundreds of formulas of lithium ion, each with various features and benefits. Some formulas provide far more positive benefits than others. When purchasing a tool, it is important to understand the performance and durability of the specific product you are considering. For example, consider how many holes you can drill per charge or how many recharges you can get during the battery’s life.

It is also important to note that there currently is no industry standard for measuring the amount of recharges a user can get from the battery. Some manufacturers test battery life using more strenuous tests that simulate job site applications, providing a “real measurement,” while other tool manufacturers test cycle life using applications that are not representative of real-world job site applications. Users should be aware of this issue and be cautious of cycle life claims until a standard is established by the industry.

Rule 4: Higher Voltage Batteries Have More Power and Run Time. When selecting a cordless tool system, the best place to start is with voltage as it is the best indicator of overall power and run time. Higher voltage tools deliver more power and longer run time.

If a contractor’s primary application is fastening small screws, a low-voltage system (7.2V to 14.4V) is ideal. For a contractor who needs to fasten screws and drill holes and use circular saws and reciprocating saws, 18V is ideal. Eighteen-volt tends to be manufacturer’s broadest systems with the most tool options. If 18V isn’t enough power and run time, consider a higher voltage (24V-plus) system.

After a voltage is selected, compare the features and benefits of the tool. This includes the type of chuck, speed selections, ergonomics (size, weight and balance), tool-free blade or bit changes, clutches, battery type, hammer mechanisms, etc. Also, consider a combo kit containing multiple cordless tools.

- See more at:


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Evaluation & Guide for Selection of Cordless Drill Used for Tree Injection Treatment Applications

The application of systemic insecticides, fungicides and nutrients using tree injection systems almost always requires the use of cordless drills to make injection sites at the base of trees.  The drill selected by arborists, tree care professionals and private homeowners will depend on a number of factors.  When shopping for a cordless drill, customers often rely on the brand reputation of the manufacturer, price and previous experience when making their purchase decision, according to J.D. Power and Associates Cordless Drill Satisfaction Reports.

The Drill Study

Arborjet considered the rankings from various reviews (2008 – 2014) of cordless drills (from Consumer Reports, Popular Mechanics, Amazon, Ebay, Relevant Rankings,and individual reviewers) and consolidated the information into a single table (available for download below) showing the top 15 models.  The focus was on higher voltage drills, i.e., 14.4 volts or greater.

We evaluated performance by drilling 2 inch deep holes in oak logs with 3/8” diameter brad-point dill bits.  Two separate evaluations were made with each drill.  Each evaluation used new drill bits and different fully charged batteries.

The Results

The consensus favorite was Makita’s BHP454.  It was ranked best overall by Consumer Reports and Popular Mechanics.  Rounding out the top 4 were Milwaukee’s 2603-22, Hitachi’s DS18DBL, and DeWalt’s DC970KL.  We purchased and tested the performance of these top four models.

The results were somewhat surprising. Overall, the Milwaukee performed the best with an average of 570 holes (range: 550 – 590) per single battery charge (see table below), while the Hitachi was second and averaged 404 holes (range: 401 – 407) per charge.  The remaining drills (Makita and DeWalt) followed with averages of 308 and 277 holes, respectively. The higher performance by Milwaukee and Hitachi may be expected as both are built with brush-less motors.  These provide greater efficient use of battery power. The use of high speed made drilling holes much less taxing. We also appreciate the lighter weight, power to weight ratio, charge indicator, and better warranties.

Comparison of the Top 4 Cordless Drills

Brand Model Battery type  Voltage (# batteries included) Ampere-hour Charge time Chuck type Motor type Torque (in/ft) Speeds (max. rpm) # Clutch settings Weight (lbs) Power/ Weight Ratio Price (approx.) Warranty Job Type Additional features Rating*
Makita BHP454 Lithium 18v (2) 3.0 30 min Keyless 1/2″ 4-pole Brushes 560 2 sp, (1700) 16 5.3 106 $280 3 yr Tougher job LED light, auxiliary handle, belt hook, depth gauge, hammer mode, Excellent run time  CR-84, 5 of 5 (Best Overall)
Milwaukee 2603-22 Lithium 18v (2) 3.0 30 min Keyless 1/2″ Brushless 725 2 sp, (1850) 24 4.9 148 $280 5 yr Tougher job LED light, auxiliary handle, charge indicator, smart charger CR-83, 9.6 of 10
Hitachi DS18DBL Lithium 18v (2) 3.0 45 min keyless 1/2″ Brushless 593 8 sp (1800) 22 4.4 135 #330 Lifetime Tougher job Auxiliary handle, belt clip, charge indicator, Smart charger Best 18V, CR-74, 9.3 of 10, 4.7 of 5
DeWalt DCD940KX Ni-Cd 18v (2) 2.4 60 min 1/2″ Brush 450 UWO 3 sp (2000) 22 6.3 72 $280 3 yr Tougher job LED light, auxiliary handle, Excellent run time CR-81

Click here for The Drill Study Download full PDF.

Definitions of terms in The Drill Study Download

*Battery type: Lithium-ion (Li-ion), Nickel-Cadmium (NiCd), or Nickel MH (NiMH).  Lithium-ion batteries are smaller and have more power than Nickel-cad, which is why they are popular in power tools. They also don’t have as long of a lifespan as NiCds. Lithium-ion batteries have about a 3 to 5 year lifespan. They also cost about 3x more than NiCds. (For more information, stay tuned for the Power Tool Battery Comparison, coming next week.)

*Torque (in/lb or UWO) – a measure of the twisting force the drill applies when started.   Most companies provide torque measures in inch-pounds (in-lbs), while DeWalt and Portle Cable provide rating in unit Watts out (UWO).

*Weight: Weight in pounds (to nearest tenth) of drill + installed battery.

*Power/Weight Ratio: a measure of a drill’s efficiency based on the average ratio (100) of class (18V) drills.  For example, Milwaukee’s 2603-22 has an 48% higher than average power-to-weight ratio and ranks in the top 20% of efficiently designed 18V-class drills. The P/W ratio is 48 higher than the 100 average ratio for this class drill.

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Provider Spotlight: Tree Care Rx, Barrington, Illinois

Certified Arborist Dan O’Brien has been working in the tree care industry for 11 seasons. During that time, he has seen emerald ash borer devastate trees in the Chicago area. He started using TREE-Tree Care RX 1(1)® Insecticide in 2008, when it became available in his area. Today, the trees he’s treated are still alive. I asked him to talk about the current situation regarding Emerald Ash Borer in Illinois.

“My hometown of Schaumburg, IL, has lost a significant number of ash trees. Without treatment, those trees are dying. It’s a great loss to the city’s tree landscape, 30 percent of which are ashes.

Tree Care Rx observed the Emerald Ash Borer hitting particularly hard last year. We received many calls from residents worried about the health of their ash trees. Unfortunately, it was too late for treatment.

Tree Care Rx informs customers and those living in their neighborhoods about treating their ash trees. Some customers were concerned about the cost. But two years later when we came back for the second round of treatments, those customers were very happy to see us. They were so excited that their trees are being saved. This product is extremely effective compared with others on the market that are only 64 to 90 percent effective. Skeptical neighbors are now wishing they had treated as well. It’s a lesson to be learned. Save the trees before it’s too late.”

©2014 Arborjet, Inc. Important: Always read and follow label instructions. Some crop protection products may not be registered for sale or use in all states or counties. Please check with your state or local extension service to ensure registration status. TREE-äge® Insecticide is a Restricted Use Pesticide and must only be sold to and used by a state certified applicator or by persons under their direct supervision. TREE-äge® is a registered trademark of Arborjet, Inc.

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Provider Endorsement: Pamela Trentini, MA

“I loved working with Arborjet when I worked with hemlock groves. The arborist can treat in almost any weather; I have treated hemlocks in torrential downpours. In the rain, I would get under the hemlock’s canopy, drill, set the Arborplugs and allow the product to be taken up by the xylem. Over the past six years, especially during May and June, I have treated hundreds of hemlocks for Adelgids.”

Pamela B. Trentini
Massachusetts Certified Arborist
Massachusetts Licensed Pesticide Applicator
NOFA Accredited Organic Land Care Professional Pam Trentini

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Plant Health Care from the Soil Up: Introducting NutriRoot™!

Check out the news– NutriRoot™ is launched!

Arborjet Debuts NutriRoot™, the Single Solution for Transplant Success  

Dramatically Increases Root Development and Reduces Water Stress in Plants, Trees, Shrubs and Lawns

Woburn, MA, April xx, 2014Arborjet, a company dedicated to developing remedies for the world’s most destructive tree insects and diseases, today launches NutriRoot™, a 2-part formula made up of a nutrient pack and water manager in one that can be used at planting or as maintenance to mature trees, shrubs, landscape plants, and turf. NutriRoot promotes root growth, reduces watering, improves transplant success, protects transplants from drought stress and shock, and feeds roots all season long.

Unlike most products currently available on the market that are purely nutrient-based or just a standalone water management product, NutriRoot combines these two elements into one easy and effective treatment.  In fact, in field trials root mass was doubled on plants treated with NutriRoot. This enables new and mature plantings to more easily extract water from the air and the soil, reducing the need for watering and results in successful plantings even in drought conditions.

“In keeping with Arborjet’s commitment to offering innovative remedies that nurture plants, we are excited to introduce NutriRoot, a unique product designed to enhance root development and reduce watering stress. In particular, this is critical where water is a precious resource,” said Russ Davis, President and COO of Arborjet.

NutriRoot is a unique blend of essential minerals, seaweed extract, humates, surfactants and humectants designed to increase root development and reduce water stress in plants, trees, shrubs and lawns. NutriRoot is best used at initial installation to aid in establishing a strong root system for young plantings. It can be applied monthly throughout the growing season, particularly in hot, dry months to alleviate water stress in trees and landscape plants. To help reduce winter stress in northern regions, NutriRoot may be applied in the fall, before the onset of winter and freezing temperatures.

Treatment uses:

  • Root Development
  • Transplant Success
  • Water Stress Management
  • Nutrient Deficiencies
  • Sandy Soils
  • Dry Soil Conditions
  • Summer Stress
  • Winter Stress

NutriRoot liquid concentrate is available in 8 ounce, 32 ounce (quart) and 128 ounce (gallon) containers, and is designed for use in watering cans, hose-end or hydraulic/pump sprayers, soil injectors and similar equipment.

Please note that NutriRoot is not yet registered for use in all states. Contact your local extension office or Department of Agriculture to verify that NutriRoot is available for use in your area.

Note to editors: Product photos are available upon request.


About Arborjet

Founded in 1999, Arborjet’s mission is to provide the most effective and environmentally responsible formulations and equipment to promote overall plant health care and to preserve our natural and urban forests. The company is committed to researching and developing remedies for the world’s most invasive pest insects and diseases to support arborists and enable them to safely treat near waterways and highly populated areas. Arborjet’s products are for both residential and commercial application and are distributed throughout the United States. Arborjet is headquartered in Woburn, MA. To learn more about plant health products provided by Arborjet, visit

NutriRoot™ is a registered trademark of Arborjet, Inc. Visit for information on product availability.

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Emerald Ash Borer concerns move Eastward

As Spring progresses and trees become more active, the time to act to save Ash trees from the Emerald Ash Borer (EAB) is almost upon us again. Despite the news of recent quarantines in Essex and Berkshire counties of Massachusetts, many people are still under-educated about EAB. As a consequence, the destruction they cause can go unnoticed for some time. I asked Rich Grant, an Arborist and Project Manager at Mayer Tree in Essex, Massachusetts to weigh in on the subject.

The major issue is that most people on the East Coast “don’t really know about EAB yet. I have clients with 3 foot diameter Ash trees and they have yet to contact me, so I reach out to them. I was aware of it well before it came out in the news that EAB was in North Andover, Dalton and Concord, New Hampshire.”

Rich has found that in many cases clients are “reactive rather than proactive”, because of the lack of education on this subject. Clients are often unaware of the signs to look for, such as dieback in tree canopy, new sprouts forming from the tree’s base, woodpecker damage and “D” shaped exit holes. The good news is that if you are seeing these signs, there still time to treat.

Sadly, in much of the country, especially in the Midwest, EAB populations have been wreaking havoc since 2002 at the cost of millions of trees. Thankfully, no matter where you live, Arborjet can treat the problem and save valuable trees from infestation.

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Provider Spotlight: The Bob Ray Company, Louisville KY

Bob Ray Co Logo

This week we spoke with Laura Lyon, a knowledgeable and experienced Arborist at the Bob Ray Company in Louisville, Kentucky. I asked her to talk about EAB situation in her area this Spring as well as other concerns for the trees of Kentucky.

“I have been aware of EAB for years now and more so since coming to the Bob Ray Company. I’ve spent a lot of time looking at trees and during this time of year I spend 60% of my time looking at Ash trees specifically. In Kentucky there are a lot of people that care about their trees, whether they need treatment or not, and that’s a good thing!

I fight against the misinformation and rumors such as, ‘if you have Ash trees you need to cut them down” and “nothing on the market works.’ The fact is the Arborjet products are very easily used and they work very well, but sometimes their minds are already made up and those trees are gone. Thankfully the majority of our customers are very willing to treat their trees. They are aware that we are keeping up with current research here and at the the University of Kentucky. We let our customers know what to expect.

We’ve had several droughts in the past, so now the trees are starting to manifest issues. Oaks and Elms are exhibiting various problems, and some of our Red Maples are showing a general decline. They Honeylocust Trees and the Hickory trees are now starting to exhibit problems as well. We run the gamut on issues because our crazy weather pattern exacerbates any problems that may be around…so we are constantly working with this.”

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Announcing… Arbor-OTC™!

New press release on the wire– check out our new Arbor-OTC™!

Fight Back Against Bacterial Diseases in Trees and Palms with New Arbor-OTC™ from Arborjet

Protect Valuable Trees from Bacterial Leaf Scorch, Fire Blight, Cankers, and More

Arborjet, a company dedicated to developing remedies for the world’s most destructive tree insects and diseases, makes it easier than ever to keep palms and trees healthy with new Arbor-OTC™

Arbor-OTC comes in 2 sizes: 1 oz. and 5 oz.

Arbor-OTC comes in 2 sizes: 1 oz. and 5 oz.

. It delivers an antibiotic punch via trunk injection into the tree’s xylem, where it is taken up by the vascular system and distributed throughout the plant to suppress disease-causing bacteria – a more effective and environmentally responsible delivery method than spraying.

Arbor-OTC is a water-soluble injectable systemic antibiotic for the annual suppression of bacterial diseases in non-food-bearing trees and palms. Bacteria can undergo exponential growth, meaning that their populations can double several times daily, depending on the bacterial species and environmental conditions. If not addressed, bacterial diseases can spread rapidly and cause the decline and death of a tree.

“Bacterial diseases are notoriously difficult to manage, and existing products are a hassle to use,” said Russ Davis, President and COO of Arborjet. “This is why we are so excited to offer Arbor-OTC, a shelf-stable water-soluble powder that allows the applicator to mix and go without worrying about refrigeration or expiration dates.” When injected, Arbor OTC is inside the tree protecting the tissue when the bacterial disease is present. Spraying timing is always difficult with bacterial diseases and applicators often miss the window of control due to wind and other adverse weather conditions.

The new easy-to-use container comes in two sizes: a one-ounce (28 gram) jar, perfect for treating 10 trees or palms at 10” diameter at breast height (DBH) in the same day. This container can be filled with water, covered and shaken, and then the Arbor-OTC can be poured directly into the formulation tank on trunk injection equipment. For bigger projects, the five–ounce (140 gram) container makes enough Arbor-OTC to treat 50 trees or palms at 10” DBH. This container comes with a scoop to dose out the proper volume to mix with water.

Annual applications of Arbor-OTC can be made to treat bacterial diseases including Bacterial Leaf Scorch, Fire Blight, Lethal Yellowing and Texas Phoenix Palm Decline (types of Phytoplasma Disease). Other diseases that may be treated with Arbor-OTC include Ash Yellows, Bacterial Blast, Bacterial Blight, Bacterial Canker, Blossom Blast, Blossom Blight and Canker, Bunch Disease, Crown Gall, Decline, Fruit Spot, Leaf and Shoot Blight, Leaf Blight and Brown Rot, Leaf Spot, Lethal Decline, Phloem Necrosis, Stem Canker, Stubborn Disease, Tip Dieback, Vascular Yellows, Wetwood/Slime Flux, Witches’ Broom (caused by mycoplasma-like organisms), and X-Disease.

Please note that Arbor-OTC is not yet registered for use in all states. Contact local extension or Department of Agriculture to verify that Arbor-OTC is available for use in your area.

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