The amount and type of bugs you'll find in Nicaragua is determined by the type of climate mostly. The Caribbean east coast is wet year round while the Pacific side has a 5 month rainy season and a 7 month absolute dry season. Our home in Managua, near the Pacific is open to the elements 24 hours a day, 365 days a year. Our laundry area has a gate but no screen. We open our sliding doors in the morning and close them at night. Again no screens. There are some flies and mosquitos, but not too many to make it uncomfortable.