C27 License Pest and Disease Management 2

Question 1

In an IPM program, what is the correct hierarchy of pest control tactics from least to most environmentally disruptive?

Accepted Answer

Cultural and mechanical → Biological → Least-toxic chemical → Conventional chemical

Answer

IPM prioritizes cultural and mechanical controls first, then biological controls, followed by least-toxic pesticides, and conventional chemicals as a last resort.

Question 2

For the most effective disease prevention, when should a protectant fungicide typically be applied?

Accepted Answer

Before infection occurs, when environmental conditions favor disease development

Answer

Protectant fungicides form a barrier on plant surfaces and must be applied before infection occurs to be effective; they do not cure existing infections.

Question 3

What is the primary purpose of a Safety Data Sheet (SDS) for a pesticide product?

Accepted Answer

To communicate hazard information, safe handling procedures, and emergency response guidance

Answer

The SDS provides workers and emergency responders with information about chemical hazards, proper handling, storage, and emergency procedures under OSHA's Hazard Communication Standard.

Question 4

Which insect vector is primarily responsible for spreading citrus greening disease (Huanglongbing) to citrus trees?

Accepted Answer

Asian citrus psyllid (Diaphorina citri)

Answer

The Asian citrus psyllid is the primary vector of the bacterium Candidatus Liberibacter asiaticus, which causes citrus greening (Huanglongbing) disease.

Question 5

What is the correct definition of a pre-emergent herbicide?

Accepted Answer

A herbicide applied before weed seeds germinate to prevent seedling establishment

Answer

Pre-emergent herbicides create a chemical barrier in the soil that prevents weed seeds from germinating and becoming established plants.

C27 License - C-27 Landscaping Contractor License Practice Test

C27 License - C-27 Landscaping Contractor License Practice Test

C27 License Pest and Disease Management 2