C27 License - C-27 Landscaping Contractor License Landscape Maintenance and Repair Questions and Answers

Question 1

A client's lawn has several irregular brown patches where the turf feels spongy and lifts up easily, like a carpet.
An increased number of birds have also been seen digging in these areas.
What is the MOST likely cause of this damage?

Accepted Answer

An infestation of grub worms.

Answer

A fungal disease like Brown Patch.

Answer

Compacted soil and poor aeration.

Answer

Improper irrigation and drought stress.

Question 2

An entire irrigation system is experiencing low water pressure across all zones. The controller is functioning, and the water supply to the property is confirmed to be normal. Which of the following is the MOST logical first component to inspect for a system-wide pressure issue?

Accepted Answer

The backflow prevention device.

Answer

A clogged nozzle on the last head of a zone.

Answer

A leaking valve in a single zone.

Answer

A crushed lateral line in one of the zones.

Question 3

When performing a 'rejuvenation pruning' on a severely overgrown, multi-stemmed deciduous shrub, what is the recommended practice?

Accepted Answer

Cut all stems down to about 6-12 inches from the ground in late winter or early spring.

Answer

Shear the entire shrub into a uniform, compact shape.

Answer

Remove only the top one-third of all branches to reduce height.

Answer

Selectively thin out about half of the interior branches.

Question 4

A client's paver patio has a section that has sunken over time, creating an uneven and hazardous surface. What is the most common cause for this type of hardscape failure?

Accepted Answer

Inadequate compaction of the sub-base material.

Answer

Using the wrong color of polymeric sand.

Answer

The pavers were sealed too soon after installation.

Answer

Pavers being spaced too far apart.

Question 5

Which of the following is a core principle of Integrated Pest Management (IPM) that should be prioritized BEFORE considering chemical pesticides?

Accepted Answer

Utilizing cultural practices like proper plant selection and sanitation.

Answer

Applying broad-spectrum insecticides on a preventative schedule.

Answer

Relying solely on chemical solutions for quick results.

Answer

Treating the entire landscape area regardless of pest location.

Question 6

A lawn is exhibiting small, circular, straw-colored patches roughly the size of a silver dollar. The grass blades at the edge of the patches may have a reddish-brown border. These symptoms are MOST indicative of which turfgrass disease?

Accepted Answer

Dollar Spot

Answer

Brown Patch

Answer

Rust

Answer

Powdery Mildew

A client's lawn has several irregular brown patches where the turf feels spongy and lifts up easily, like a carpet.An increased number of birds have also been seen digging in these areas.What is the MOST likely cause of this damage?

A client's lawn has several irregular brown patches where the turf feels spongy and lifts up easily, like a carpet.
An increased number of birds have also been seen digging in these areas.
What is the MOST likely cause of this damage?