Why are there so many mosquitoes in my yard specifically?
Usually because something on your Gresham lot, or one next door, holds water for a week at a time. Gutters, tarps, saucers, and toys are the classic culprits. Dense shade and ivy also keep adults comfortable during the day, so a shady Gresham yard collects them from the whole block.
Will mosquito treatment kill bees and butterflies?
It can, since residual pyrethroids do not pick their targets. A careful Gresham applicator avoids blooming plants, vegetable gardens, and pollinator beds, and treats resting cover instead. Ask the provider directly, and tell them where the flowers and any hives are on your Gresham lot.
Can mosquito control help with West Nile risk?
Yes, in the sense that it reduces bites. West Nile is carried mostly by Culex mosquitoes that breed in dirty standing water and bite at night, so a Gresham program that treats gutters, drains, and barrels helps. Check county health alerts for Gresham during late summer when cases peak.
What is the difference between larvicide and barrier spray?
Larvicide turns off the tap; barrier spray mops the floor. Around Gresham, the tap is standing water, treated with Bti or methoprene that stops development. The mop is a residual pyrethroid misted onto shrubs and shaded surfaces where adults rest during a Gresham afternoon.
What are In2Care stations and do they work?
They work on the container-breeding species that bite in daylight, and they suit Gresham yards where owners prefer not to spray. They are not instant. Numbers drop over several weeks as the larvicide spreads, so a Gresham provider may combine them with one barrier treatment early on.
Do mosquitoes really change how people use their yards?
For a sizable minority, yes. Worth knowing before you call anyone in Gresham: Twenty-three percent of U.S. homeowners in Mosquito Squad's 2016 Fight the Bite survey, fielded by TNS Global, said mosquitoes had changed their plans in the previous year (a provider-sponsored poll with an undisclosed sample size). Providers serving Gresham should be able to explain how their recommendation fits what they actually found on your property.
Did people hire mosquito professionals because of Zika?
Mostly not, at least by intention. Another data point for Gresham readers: six percent of U.S. homeowners in Mosquito Squad's 2016 Fight the Bite survey said Zika news had made them plan professional mosquito treatment, a stated intention from a TNS Global poll that the company sponsored and whose sample size is undisclosed. Gresham homeowners comparing quotes should ask each provider which of these patterns they see locally and why.