| Date | Grid | Clue | Author |
| Sun Jul 23, 2023 | 70A | Substance banned for agricultural use in 1972, for short | Chandi Deitmer |
| Thu Oct 6, 2022 | 6A | Banned antimalarial | Simeon Seigel |
| Sun Aug 14, 2022 | 4A | Banned insecticide (12) | Jeff Chen and Jim Horne |
| Fri Jul 8, 2022 | 39A | Banned compound once used to control malaria | Kyle Dolan |
| Sat Jan 29, 2022 | 15D | Subj. of Rachel Carson's "Silent Spring" | Andrew Ries and Caitlin Reid |
| Sat Nov 6, 2021 | 8D | Noted organochloride, in brief | Brooke Husic and Will Nediger |
| Thu Jul 22, 2021 | 62D | E.P.A.-banned pesticide (3) | John Guzzetta |
| Mon May 31, 2021 | 29D | Banned pesticide, for short | Michael Lieberman |
| Fri Dec 18, 2020 | 51A | Target of a 1972 ban (3) | Damon Gulczynski |
| Tue May 19, 2020 | 46A | Insecticide whose 1972 ban led to the comeback of the bald eagle | Trent H. Evans |
| Sun Mar 8, 2020 | 76A | "Silent Spring" subject, for short | Laura Taylor Kinnel |
| Wed Jan 15, 2020 | 13D | E.P.A.-banned pesticide (3) | Mary Lou Guizzo |
| Mon Dec 16, 2019 | 31A | Banned insecticide (12) | Howard Barkin and Kevin Christian |
| Fri Sep 13, 2019 | 47A | Substance whose primary use earned its discoverer the 1948 Nobel Prize in Physiology - but is now banned | Anne and Daniel Larsen |
| Sun Mar 24, 2019 | 46A | Pesticide banned in 1972 (2) | Trenton Charlson |
| Wed Feb 13, 2019 | 9D | Banned insecticide (12) | Ross Trudeau |
| Thu Nov 1, 2018 | 59D | Debugging aid? | Matt Ginsberg |
| Wed May 17, 2017 | 50D | Pesticide banned in the '70s | Paul Hunsberger |
| Sun Apr 2, 2017 | 47D | Banned insecticide (12) | Jerry Miccolis |
| Sun Mar 12, 2017 | 37D | Target of a 1972 ban (3) | Alan Arbesfeld |
| Sun Jul 24, 2016 | 90A | "Silent Spring" subject (3) | David Steinberg |
| Sun Jan 10, 2016 | 60A | "Silent Spring" spray | Patrick Merrell |
| Sun Dec 20, 2015 | 111D | Chemical used to fight malaria | Peter Wentz |
| Wed Sep 30, 2015 | 22D | E.P.A.-banned pesticide (3) | Freddie Cheng |
| Tue Sep 22, 2015 | 67D | Pesticide banned in 1972 (2) | Victor Barocas and Tom Pepper |
| Mon Sep 7, 2015 | 39D | Banned insecticide (12) | Paula Gamache |
| Thu May 28, 2015 | 32D | "Silent Spring" topic, in brief | Jeff Chen |
| Wed Mar 4, 2015 | 5D | "Silent Spring" pesticide | Jeff Stillman |
| Thu Feb 19, 2015 | 70A | "Silent Spring" topic, for short | Jason Flinn |
| Sun Dec 28, 2014 | 30A | Antimalarial agent | Joe Krozel |
| Fri Oct 17, 2014 | 53A | Malaria-fighting compound during W.W. II | Michael Ashley |
| Thu May 1, 2014 | 8D | Chemical restricted by the Stockholm Convention | Brandon Hensley |
| Fri Apr 11, 2014 | 37D | Target of a 1972 ban (3) | Peter Wentz |
| Sat Jul 27, 2013 | 5D | "Silent Spring" topic (2) | John Lieb and David Quarfoot |
| Wed Apr 17, 2013 | 37A | E.P.A.-banned substance | Samuel A. Donaldson |
| Mon Dec 24, 2012 | 29A | Banned insecticide (12) | Michael Sharp |
| Tue May 22, 2012 | 1A | Insecticide whose spelled-out name has 31 letters | Kyle T. Dolan |
| Wed Jan 4, 2012 | 49D | Subj. of the 1948 Nobel in Physiology or Medicine | Brendan Emmett Quigley |
| Sat Jun 4, 2011 | 29A | Target of a 1972 ban in the U.S. | Frederick J. Healy |
| Mon Dec 27, 2010 | 67A | Banned insecticide, for short | C. W. Stewart |
| Fri Nov 26, 2010 | 7D | It's been banned in the U.S. since 1972 | Gary Steinmehl |
| Wed Mar 17, 2010 | 66A | Banned bug spray (2) | Patrick Merrell |
| Fri Sep 25, 2009 | 9D | "Silent Spring" subj. | Robert A. Doll |
| Sun Sep 13, 2009 | 56D | Banned insecticide (12) | Todd Gross |
| Sun Jul 19, 2009 | 64A | Toxic spray | Lynn Lempel |
| Mon Jun 22, 2009 | 69A | Banned bug spray (2) | Fred Piscop |
| Fri Mar 13, 2009 | 27A | "Silent Spring" subject (3) | Joon Pahk |
| Thu Oct 16, 2008 | 57D | Banned pesticide (4) | Ian Tullis |
| Mon Mar 3, 2008 | 8D | Banned insecticide (12) | C. W. Stewart |
| Sun Apr 22, 2007 | 94A | Banned spray | Victor Fleming |
| Fri Dec 15, 2006 | 51A | One target of Rachel Carson's "Silent Spring" | Levi Denham |
| Tue Oct 24, 2006 | 23A | Banned insecticide (12) | Gail Grabowski |
| Mon May 22, 2006 | 1D | Banned pesticide (4) | Edgar R. Fontaine |
| Tue Jul 26, 2005 | 63D | Banned insecticide (12) | Lee Glickstein and Nancy Salomon |
| Sun Aug 31, 2003 | 117D | Banned pesticide (4) | Fred Piscop |
| Fri Nov 29, 2002 | 51A | Chloral derivative, for short | Patrick Berry |
| Sun Aug 4, 2002 | 115D | Old agricultural letters | Robert Malinow |
| Mon Jul 29, 2002 | 50D | Banned insecticide (12) | Peter Gordon |
| Wed May 2, 2001 | 39A | Danger in the water supply | Nancy Salomon and Harvey Estes |
| Sat Mar 25, 2000 | 25A | "Silent Spring" subject (3) | David J. Kahn |
| Sun Apr 25, 1999 | 125A | Insect killer | Joe DiPietro |
| Thu Apr 15, 1999 | 6D | "Silent Spring" topic (2) | Cathy Millhauser |
| Thu Oct 22, 1998 | 59A | Bug killer, briefly | Chuck Deodene |
| Sun May 10, 1998 | 41A | C14H9Cl5 | Rich Silvestri |
| Sat Mar 14, 1998 | 9D | C14H9Cl5, familiarly | Ed Pegg Jr. |
| Tue Sep 9, 1997 | 65D | Banned pesticide (4) | Elizabeth C. Gorski |
| Fri Oct 11, 1996 | 44A | Subject of a 1973 ban | F. Longo |
| Fri Sep 13, 1996 | 4D | Bug killer | M. Nosowsky |
| Wed Nov 22, 1995 | 40D | Potent pesticide | Chuck Deodene |
| Thu May 25, 1995 | 39D | Mantis killer | Harvey Estes |
| Sun Apr 9, 1995 | 53D | Banned insecticide (12) | Cathy Millhauser |
| Wed Jul 20, 1994 | 30A | It was banned in 1973 | Harvey Estes |