C27 License Pest and Disease Management 3

Question 1

What does the Re-Entry Interval (REI) printed on a pesticide label specify?

Accepted Answer

The minimum time workers must wait before entering a treated area without protective equipment

Answer

The number of days after application before re-treating the same area

Answer

The shelf life of the pesticide product after opening

Answer

The interval between pesticide applications required for effective pest control

Question 2

Which pest management practice involves selecting and planting species or cultivars that are inherently resistant to common pests and diseases?

Accepted Answer

Cultural control through resistant plant selection

Answer

Biological control

Answer

Mechanical exclusion using physical barriers

Answer

Chemical suppression using systemic pesticides

Question 3

What is the primary visible symptom of iron chlorosis in landscape plants?

Accepted Answer

Dark green veins with yellowing between veins on young leaves

Answer

Uniform browning of leaf tips and margins

Answer

Purple or reddish discoloration of older leaves

Answer

White powdery coating on leaf surfaces and buds

Question 4

Under California pesticide regulations, how long must pesticide application records be retained by a licensed applicator?

Accepted Answer

3 years from the date of application

Answer

1 year from the date of application

Answer

2 years from the date of application

Answer

5 years from the date of application

Question 5

Which of the following pest species is primarily known for damaging turfgrass by feeding on roots below the soil surface?

Accepted Answer

White grubs (larvae of Scarab beetles such as Cyclocephala spp.)

Answer

Sod webworm (Crambus spp.)

Answer

Chinch bugs (Blissus leucopterus)

Answer

Billbugs (Sphenophorus spp.) in their adult stage

Question 6

What is the proper procedure for disposing of unused or leftover pesticide in California?

Accepted Answer

Follow label directions for disposal and use a Household Hazardous Waste (HHW) facility or licensed hazardous waste disposal service

Answer

Pour diluted pesticide down a storm drain, as it will be treated at the water treatment plant

Answer

Bury unused pesticide concentrate at least 18 inches deep on the job site

Answer

Mix excess pesticide with soil and spread it thinly across the treated landscape area

Question 7

Which monitoring approach is used in IPM to determine whether pest populations have reached a level that justifies a control intervention?

Accepted Answer

Regular scouting combined with comparison against established action thresholds

Answer

Calendar-based spraying performed at fixed intervals regardless of pest presence

Answer

Application of preventive pesticides at the start of each growing season

Answer

Visual inspection only after significant plant damage is observed