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How to Identify Common Household Pests

Learn how to identify the most common household pests in New Zealand, understand their behavior patterns, and recognize the signs of an infestation.

Introduction

Identifying household pests early is crucial for effective pest control. In New Zealand, several common pests can invade homes, causing various problems from minor nuisances to serious health risks. This guide will help you identify the most frequent unwanted visitors and understand the signs of their presence.

Common Household Pests and Their Signs

German Cockroaches

Signs to Look For

  • Small, light brown to dark brown insects
  • Droppings that look like ground coffee or pepper
  • Egg cases in hidden areas
  • Musty odor in infested areas

Common Locations

  • Kitchen cabinets
  • Behind appliances
  • Near water sources
  • Warm, dark spaces

Associated Risks

  • Food contamination
  • Allergies and asthma triggers
  • Disease transmission
  • Rapid reproduction

House Ants

Signs to Look For

  • Trails of ants
  • Small piles of sand or soil
  • Sweet or protein food disappearing
  • Nests near foundations

Common Locations

  • Kitchen areas
  • Bathroom spaces
  • Garden perimeters
  • Wall cavities

Associated Risks

  • Food contamination
  • Structure damage
  • Garden damage
  • Electrical equipment damage

Rodents (Rats and Mice)

Signs to Look For

  • Droppings near food sources
  • Gnaw marks on wood or wires
  • Greasy rub marks along walls
  • Scratching sounds in walls/ceiling

Common Locations

  • Roof spaces
  • Wall cavities
  • Storage areas
  • Under floorboards

Associated Risks

  • Disease transmission
  • Structural damage
  • Fire hazards from chewed wires
  • Food contamination

How to Conduct a Home Inspection

Regular home inspections are essential for early pest detection. Here's a comprehensive checklist for different areas of your home:

Kitchen

  • Behind and under appliances
  • Inside cabinets and drawers
  • Around water pipes
  • Food storage areas

Bathroom

  • Under sinks
  • Around toilet base
  • Behind shower units
  • Near plumbing fixtures

General Areas

  • Window frames and sills
  • Door frames and thresholds
  • Wall and ceiling corners
  • Basement and crawl spaces

When to Call Professional Help

While identifying pests is the first step, professional intervention might be necessary if you observe:

  • Multiple signs of infestation
  • Rapid increase in pest activity
  • Failed DIY treatment attempts
  • Structural damage or health concerns

Need Professional Pest Inspection?

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