Will we need bug repellent for our visit to Washington DC?

It's very likely that there will be mosquitos and other insects (gnats, no-see-ums, etc.) in D.C. in late June. You may want to bring insect repellant with you, depending on your sensitivity to insects and your planned activities. Obviously, the more time outside, the more exposure. Gnats and similar insects are prevalent during the day, especially in wooded, park areas. Mosquitoes are most prevalent at dusk and evening, but are likely to be present all the time. Some people are more sensitive to and bothered by bites than others. I lived in D.C., and never used insect repellant; I considered itchy bites to be a fact of life in the summer. However, if I was going to visit now, I'd bring packets of repellant wipes and try to remember to use them on exposed skin before going outside.

Generally speaking cities, especially on the East Coast, are trying to control population of pest insects, like mosquitoes, wasps, ticks and the like for the concern about blood and other diseases:

• http://doh.dc.gov/release/dc-department-health-urges-residents-take-caution-against-mosquito-bites
• https://www.alexandriava.gov/MosquitoControl

Just to mention a few.

So in the city you're likely to see mostly more benign bugs like bees, bumble bees, lady bugs, butterflies, etc. But even with the pest control that cities employs it's not perfect. So some mosquitoes will still be there, mostly around standing water and during the dusk and night time but it's not anywhere near the quantities that the OFF is advertising with.

Now when you move out of the city the suburbs may require open areas to be left in developments which could leave bug population there untouched so if you're anywhere near something like that what you will encounter is a crap shoot, so depending on where you stay and will be visiting you should plan accordingly but within DC city limits I wouldn't worry about the bug repellent.