Webinar Title: Landscape Equipment Sustainability Strategies
Webinar Date: March 12, 2026
Speaker: Dr. Paul Bartley, Assistant Professor, Landscape Environmental Stewardship, Department of Horticulture, Auburn University
Series: Green & Commercial
CEU Categories: Cat 10 (Private Applicator), Cat 21 (Plant Agriculture), Cat 24 (Ornamental and Turf), Cat 27 (Right-of-Way), Cat 32 (Regulatory Pest Control)
Total Questions: 13
Difficulty Distribution: 5 Recall (38%) / 5 Application (38%) / 3 Analysis (23%)
Question 1
Timestamp Reference: 12:45 – 14:00
Difficulty: Recall
In Bartley’s national survey of landscape business owners, which factor ranked HIGHEST when purchasing equipment?
a) Cost
b) Noise pollution
c) Reliability
d) Power source
Correct Answer: c
Explanation: The survey of roughly 200 business owners found that reliability, work capacity, and ease of maintenance ranked highest, while power source, noise pollution, and air pollution ranked lowest.
Source in transcript: ~13:08–13:43 (blocks 196–204)
Question 2
Timestamp Reference: 17:25 – 17:47
Difficulty: Recall
When gas-only operators in the survey were asked whether they would adopt battery-powered equipment if their concerns about work capacity and power were addressed, approximately what percentage said yes?
a) 50%
b) 65%
c) 75%
d) 85%
Correct Answer: d
Explanation: Bartley reported that 85% said yes and about 15% said no. Those who declined cited concerns such as lithium-ion sourcing.
Source in transcript: ~17:25–17:40 (blocks 271–275)
Question 3
Timestamp Reference: 17:47 – 19:30
Difficulty: Application
A commercial landscaper is choosing between gas and battery string trimmers and wants to know how much fence line they can trim per charge or tank. Based on Bartley’s field testing along a mile of chain-link fence, which statement best describes the comparison?
a) Battery trimmers covered the same distance as gas trimmers
b) Gas trimmers covered 6,000–7,000 feet per tank; some battery trimmers covered one quarter of that
c) Battery trimmers exceeded gas trimmers in distance covered
d) Gas and battery trimmers were equivalent under load but differed in lab testing
Correct Answer: b
Explanation: Bartley’s field test showed that while lab runtime was comparable, gas trimmers covered 6,000–7,000 feet of fence per tank. Some battery trimmers managed only about a quarter of that distance under load.
Source in transcript: ~19:02–19:28 (blocks 295–302)
Question 4
Timestamp Reference: 20:03 – 20:54
Difficulty: Recall
According to Bartley, removing the string guard from a battery-powered string trimmer and extending the line length can decrease runtime by approximately how much?
a) 10%
b) 20%
c) 30%
d) 50%
Correct Answer: c
Explanation: Bartley stated that extending line length beyond the string guard decreases runtime by about 30%. Increasing string diameter can reduce it by an additional 20%.
Source in transcript: ~20:30–20:47 (blocks 316–319)
Question 5
Timestamp Reference: 25:00 – 27:00
Difficulty: Application
A landscape company needs to match the work output of their gas backpack blower, which completes about 497 tasks per simulation cycle. Their best-performing battery blower completes about 300 tasks. Given that most lithium-ion batteries are rated below 2,000 recharge cycles and some tools would require over 5,000 recharges to match the gas blower’s total work output, what practical problem does this create?
a) The battery blower will need new batteries before it can match the gas blower’s cumulative output
b) The battery blower will overheat from the number of recharge cycles
c) The gas blower will require more maintenance than the battery blower
d) Battery cost per recharge cycle will exceed gas fuel cost per tank
Correct Answer: a
Explanation: Bartley explained that batteries degrade with each recharge cycle, holding slightly less energy each time. At the rates his data showed, operators would need to replace batteries before accumulating enough recharges to equal the gas blower’s total work output.
Source in transcript: ~26:30–27:47 (blocks 424–437)
Question 6
Timestamp Reference: 28:20 – 30:10
Difficulty: Recall
According to Bartley, at what dBA level does the National Institute for Occupational Safety and Health (NIOSH) consider noise exposure to be detrimental?
a) 75 dBA
b) 80 dBA
c) 85 dBA
d) 90 dBA
Correct Answer: c
Explanation: Bartley identified 85 dBA as the NIOSH threshold for noise that is considered detrimental to hearing over prolonged exposure.
Source in transcript: ~28:46–29:02 (blocks 452–454)
Question 7
Timestamp Reference: 31:00 – 32:10
Difficulty: Analysis
Bartley measured a battery backpack blower at 60 dBA and a gas backpack blower at 80 dBA, both at 50 feet from the operator. He explained that dBA is measured on a logarithmic scale where every 10 dBA increase represents a doubling of perceived loudness. Based on this, the gas blower at 50 feet is how many times louder than the battery blower?
a) Twice as loud
b) Three times as loud
c) Four times as loud
d) Ten times as loud
Correct Answer: c
Explanation: Bartley stated that a 20 dBA difference on the log scale means the gas blower produces four times the noise at bystander distance — 60 to 70 is a doubling, and 70 to 80 is another doubling.
Source in transcript: ~31:54–32:10 (blocks 512–517)
Question 8
Timestamp Reference: 31:00 – 31:50
Difficulty: Application
An operator wearing no hearing protection uses a battery-powered Husqvarna backpack blower that measures 82 dBA at the operator position. Should this operator be concerned about exceeding the NIOSH hearing damage threshold?
a) Yes — 82 dBA exceeds the 80 dBA NIOSH threshold
b) No — 82 dBA is below the 85 dBA NIOSH threshold
c) Yes — any dBA above 75 requires hearing protection
d) No — backpack blowers are exempt from NIOSH guidelines
Correct Answer: b
Explanation: Bartley noted that the battery Husqvarna backpack blower measured 82 dBA at the operator, below the 85 dBA NIOSH threshold. He specifically pointed out that not needing hearing protection at the operator position is a significant comfort advantage for battery blowers.
Source in transcript: ~31:23–31:32 (blocks 502–504)
Question 9
Timestamp Reference: 34:01 – 36:08
Difficulty: Recall
In the Auburn campus case study for Zone 1 (“face of campus”), approximately how long did Bartley estimate it would take to achieve ROI when switching from gas to battery handheld equipment at full retail pricing?
a) Two years
b) Five years
c) Eight years
d) Twelve years
Correct Answer: c
Explanation: Bartley stated that comparing brand-new gas equipment to three tiers of battery equipment (roughly 45,000–46,000 in capital cost), ROI would arrive after about eight years at full retail pricing with no deals or incentives.
Source in transcript: ~35:07–35:20 (blocks 562–563)
Question 10
Timestamp Reference: 43:00 – 44:20
Difficulty: Application
A landscape company is considering purchasing an autonomous mower at 45,000, compared to a manual commercial mower at 15,000. Bartley’s data showed that the autonomous mower completes roughly half the production of a manual mower over a 3,000-hour lifespan. Under what strategy could the company make the autonomous mower worthwhile?
a) Running the autonomous mower at night when no operators are needed
b) Using a dual-mower strategy — one operator on a manual mower supervising the autonomous unit
c) Replacing all manual mowers with autonomous units
d) Operating the autonomous mower only on flat, obstacle-free terrain
Correct Answer: b
Explanation: Bartley described the dual-mower strategy as having one operator ride a manual mower while supervising an autonomous unit. This produced 55% greater efficiency and 40% lower labor costs compared to manual-only operation.
Source in transcript: ~44:03–44:22 (blocks 720–722)
Question 11
Timestamp Reference: 44:30 – 46:30
Difficulty: Analysis
Bartley found that as autonomous mower speed increases, the detection range (ring) around the mower expands but detection accuracy degrades due to vibration and bouncing. Meanwhile, at slower speeds the detection ring contracts, creating blind spots during turns. What does this trade-off imply for operators setting up autonomous mowers?
a) The fastest speed setting is always safest because the detection ring is largest
b) The slowest speed setting is always safest because vibration is lowest
c) There is no single optimal speed — operators must balance detection range against detection accuracy for their specific terrain
d) Speed settings do not affect safety because the camera system compensates automatically
Correct Answer: c
Explanation: Bartley described a fundamental trade-off: faster speeds expand detection range but degrade accuracy through vibration; slower speeds shrink the ring, creating vulnerability during turns. The optimal setting depends on terrain complexity and obstacle risk.
Source in transcript: ~45:43–46:26 (blocks 749–759)
Question 12
Timestamp Reference: 47:36 – 48:30
Difficulty: Application
A landscaper finds a deal on batteries at a steep discount from an online seller. Based on Bartley’s warning during the presentation, what risk should the landscaper consider before purchasing?
a) Discounted batteries may void the tool’s warranty
b) The batteries may be counterfeit and could catch fire
c) Discounted batteries always have fewer recharge cycles
d) Online sellers never stock commercial-grade batteries
Correct Answer: b
Explanation: Bartley described a colleague who bought what appeared to be Makita batteries from a reliable source at a low price. They turned out to be counterfeit and caught fire. He warned operators to be skeptical of unusually cheap batteries.
Source in transcript: ~47:51–48:06 (blocks 793–799)
Question 13
Timestamp Reference: 09:07 – 10:26
Difficulty: Analysis
Bartley argued that the landscape equipment industry should treat equipment transition pressures as market opportunities rather than mandates. He pointed to Georgia’s preemption bill and the difference between HOA-level restrictions and state-level bans. What is the strategic implication of this framing for a Georgia-based landscaper?
a) They should ignore all legislation since Georgia has a preemption bill
b) They are protected from municipal bans but should still prepare for HOA and community-level preferences that create demand for quieter equipment
c) They should immediately switch to all-battery equipment to comply with Georgia law
d) Georgia’s preemption bill means no equipment restrictions can exist in the state at any level
Correct Answer: b
Explanation: Bartley explained that Georgia’s preemption bill prevents municipalities and counties from passing bans more restrictive than state law. But he noted that restrictions can still appear at the HOA and community level. He framed this as a chance to differentiate services — offering battery-powered or quieter equipment as an option for noise-sensitive clients.
Source in transcript: ~10:01–11:19 (blocks 152–168)
Quiz generated for UGA Center for Urban Agriculture / GTBOP Archives
Source: Corrected SRT (Stage 1) — GTBOP_Transcript_2026-03-12_LandscapeEquipment.srt (948 blocks)
Structural reference: GTBOP_Archive_Summary_2026-03-12_LandscapeEquipment.md