Pest and Disease Management Flashcards

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

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

The REI is the minimum time that must pass after a pesticide application before workers may re-enter the treated area without full personal protective equipment.

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

Answer: Cultural control through resistant plant selection

Planting pest-resistant or disease-resistant cultivars is a cultural control strategy that reduces the need for chemical interventions over time.

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

Answer: Dark green veins with yellowing between veins on young leaves

Iron chlorosis causes interveinal chlorosis on new growth, where the tissue between the veins turns yellow while the veins remain green due to insufficient iron for chlorophyll production.

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

Answer: 3 years from the date of application

California regulations require that pesticide use records be maintained for a minimum of three years and made available for inspection by CDPR or the county agricultural commissioner.

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

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

White grubs are larvae of scarab beetles that feed on turfgrass roots below the soil surface, causing turf to die in irregular patches and lift away easily like a carpet.

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

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

Pesticides must be disposed of according to label instructions and applicable regulations; licensed hazardous waste disposal or HHW collection programs are the legally compliant options in California.

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

Answer: Regular scouting combined with comparison against established action thresholds

IPM relies on regular field scouting and comparison of pest counts against action thresholds — predetermined pest density levels at which economic or aesthetic damage justifies control action.