Warmth without a cold season
In temperate climates, winter interrupts insect life cycles. Here, activity continues through the year, so a small population can build steadily instead of resetting seasonally. That is why regular attention matters more than a single reaction.
Moisture everywhere
Humidity, rainfall and irrigation keep surfaces damp and create the small water sources many insects need. Drains, planters, roof gutters and shaded garden corners are common contributors.
Shelter close to people
Tropical planting, roof voids, service voids and outdoor storage give pests places to live right beside living and working areas. The closer the shelter, the shorter the route indoors.