Tuesday, September 1, 2026 · No. 22
Good morning, Yorkville, and welcome to September — the last full week before backpacks return. One promised update before the news: the whole-genome sequencing results the city said to expect by the end of August — the analysis that could finally name the source of the Legionnaires' outbreak — had still not been announced as far as we can find as of press time this morning. The deadline appears to have passed in silence. We said we'd report it either way; this is the other way, and we'll keep asking.
The Lead
The city is planning West Nile spraying on part of the Upper East Side
The Health Department is set to begin pesticide spraying across part of the Upper East Side to prevent West Nile virus amid a surge in infected mosquitoes, Upper East Site reports — how much of our box is inside the zone, we can't yet say. The department's own spray notices carry what matters — the exact dates, overnight hours and street boundaries — and we could not pin this round's schedule to a primary city source by press time, so rather than print a date we can't stand behind, we'll say this: the city posts every spraying notice on the Health Department's mosquito-control page, and if you keep windows open overnight or leave toys on the terrace, that page is worth a look this week.
via Upper East Site
Openings & Closings
Hashi Market at 93rd and Second: what we know, and the one thing we don't
The most interesting opening actually inside our box has been hiding in plain sight at 1801 Second Avenue at East 93rd: Hashi Market, a roughly 3,700-square-foot Japanese grocery with a sushi counter and catering operation, taking the retail base of a new Second Avenue rental building — with signage up since July and its opening 'in sight,' per Upper East Site, whose reporting UESRPT and other local outlets have echoed. What no source we can find will yet say is that the doors are open. The moment they are, this store gets the full treatment here and a line on the openings-and-closings tracker.
via Upper East Site
Around the Neighborhood
A Sean Paul soundtrack at Gracie Mansion
The neighborhood's most famous house threw a party: Mayor Mamdani hosted his first Caribbean American Heritage celebration as mayor at Gracie Mansion on August 27, walking out to the music of Jamaican rapper Sean Paul in a 2007 West Indies Cricket World Cup jersey under his suit jacket, per amNY — which describes the reception's welcome as a rockstar's. Whatever your politics, East End Avenue doesn't get many nights like that.
via amNY
This Week
What Labor Day actually changes here
Next Monday, September 7, is Labor Day, and the practical effects around here are modest: alternate-side parking is suspended citywide for the day, per NYC DOT's 2026 calendar. Neither greenmarket is affected — both are weekend markets, 82nd Street on Saturdays and Ruppert Park on Sundays, per GrowNYC — and John Jay Pool, just south of us at 77th, posts hours of 11am–7pm with a 3–4pm cleaning break, with the season running through September 13, per NYC Parks. The full list, as always, is on our events page.
via NYC DOT
Corrections
Correction: Bread Ahead's opening timeline
Yesterday's Openings & Closings item, as first published on the morning of August 31, said Time Out had reported Bread Ahead was 'aiming for an August 17 opening, possibly as a soft launch,' and invited readers to walk past and check. That was wrong: our own cited sources — Upper East Site's first look and Time Out's August 19 story — say the London bakery's first U.S. location at 1571 Second Avenue is due to open in November. We corrected the item on the site the same day; this note is the record of it. When we get a date wrong, we'll tell you here.
via Upper East Site
Yorkville, Remembered
The NYPL's first Carnegie library was built for Yorkville's German readers
When the Yorkville Branch of the New York Public Library opened on East 79th Street on December 13, 1902, it was the first of the New York Public Library's Carnegie-funded branches to open - part of steel magnate Andrew Carnegie's $5.2 million gift to New York, and it opened the same year Carnegie moved into his own new mansion on East 91st Street. Because turn-of-the-century Yorkville was a densely populated German immigrant neighborhood, the new building's third floor held only German-language books. In the last months of World War I, the future Czechoslovak president Tomas Masaryk drew on the branch's collection to research the founding of Czechoslovakia.
One more thing: the openings tracker runs on tips as much as on press releases, and our desks can't walk every block. If you've passed a new awning, papered windows coming down, or crates of vinyl where there weren't any last month — anywhere between 79th and 96th — reply and tell us. We'd rather hear it from you first. Back tomorrow morning.