Sadly, Ailanthus is notorious for redirecting all its energy into root sprouts when girdled. They come up with a vengeance everywhere within the drip zone of the tree. This would be a good occasion for the hack and squirt (or your drill and dope) method using glyphosate or triclopyr 4E (Garlon) because that kills the entire clonal colony (with the exception of quaking aspen of course). On Sun, Aug 27, 2023 at 12:09 PM Shmuel Silinsky via pbs < pbs@lists.pacificbulbsociety.net> wrote: > My preferred way to kill individual large trees (Ailanthus) is to make a > ring a few inches wide that removes the bark and cambium layer around the > tree. The food to the roots is cut off and the tree is dead, though it may > take a year or more to actually die. Need to check occasionally that any > new growth didn't occur to rejoin the upper and lower. > For smaller trees, broomstick diameter, I sometimes scrape off the cambium. > But sometimes I drill a slanting hole in the trunk (my biggest bit is 1/2 > inch) and fill the hole with dry miracle grow. Then I add some water so > there is a high concentrated solution of the nutrient salts. This works > especially well for suckering plants or if I have a lot of trees to kill. > As I said, our primary enemy is Ailanthus and with dry summers I don't want > regular salt around. Hope this helps. > Shmuel > Jerusalem Israel > Zone 9a > > On Sat, Aug 26, 2023, 3:20 AM Leigh Blake via pbs < > pbs@lists.pacificbulbsociety.net> wrote: > > > ARG!!! I'm grateful that our native slugs and snails are so > > cooperative!!! And we love our little RED Snails...too..Our worst > > pests...which i keep yelling about are the California Ground > > Squirrels...and we are missing our native foxes and Coyote.... Back to > the > > balance!! Have a wonderful PEACEFUL weekend... Headed down to Kathy > Allen's > > wonderful Rock garden tomorrow.. a lot of smoke here...from > > California..and the Flat fire to our west > > > > > > HUGS!! > > > > Leigh. > > > > On Fri, Aug 25, 2023 at 9:05 AM Kathleen Sayce via pbs < > > pbs@lists.pacificbulbsociety.net> wrote: > > > > > As I told Shmuel, my climate is wet (70-110 inches per year, 180-280 > cm) > > > so I can get away with a little salt on a slug every now and then. It’s > > not > > > my preferred option, but when 10+ chocolate slugs are eating Kniphofia > > > flowers in broad daylight, it’s quite satisfying. And the kniphofia is > > > fine. > > > > > > Kathleen > > > _______________________________________________ > > > pbs mailing list > > > pbs@lists.pacificbulbsociety.net > > > http://lists.pacificbulbsociety.net/cgi-bin/… > > > Unsubscribe: <mailto:pbs-unsubscribe@lists.pacificbulbsociety.net> > > > PBS Forum latest: > > > https://pacificbulbsociety.org/pbsforum/index.php/… > > > > > _______________________________________________ > > pbs mailing list > > pbs@lists.pacificbulbsociety.net > > http://lists.pacificbulbsociety.net/cgi-bin/… > > Unsubscribe: <mailto:pbs-unsubscribe@lists.pacificbulbsociety.net> > > PBS Forum latest: > > https://pacificbulbsociety.org/pbsforum/index.php/… > > > _______________________________________________ > pbs mailing list > pbs@lists.pacificbulbsociety.net > http://lists.pacificbulbsociety.net/cgi-bin/… > Unsubscribe: <mailto:pbs-unsubscribe@lists.pacificbulbsociety.net> > PBS Forum latest: > https://pacificbulbsociety.org/pbsforum/index.php/… > _______________________________________________ pbs mailing list pbs@lists.pacificbulbsociety.net http://lists.pacificbulbsociety.net/cgi-bin/… Unsubscribe: <mailto:pbs-unsubscribe@lists.pacificbulbsociety.net> PBS Forum https://…