Help: Oak acorn fungus/blight? - silvopasture2024-03-28T19:08:51Zhttps://silvopasture.ning.com/forum/topics/help-oak-acorn-fungus-blight?commentId=6457695%3AComment%3A346210&feed=yes&xn_auth=no1 yr follow up: We could not…tag:silvopasture.ning.com,2020-05-23:6457695:Comment:3462102020-05-23T14:41:39.241ZJoanne Vaughnhttps://silvopasture.ning.com/profile/JoanneVaughn
<p>1 yr follow up: We could not remove all of these from the infested tree. This year another tree shows these as well. They most closely match Cola-nut galls which are hosted by oaks. </p>
<p>Wiki says:</p>
<p><span>The </span><a href="https://en.wikipedia.org/wiki/Imago" title="Imago">imago</a><span> of the agamic phase emerges in early summer following the gall's inception. The bisexual generation gall is very similar to that of </span><i>A. kollari,</i><span> effecting the live bud…</span></p>
<p>1 yr follow up: We could not remove all of these from the infested tree. This year another tree shows these as well. They most closely match Cola-nut galls which are hosted by oaks. </p>
<p>Wiki says:</p>
<p><span>The </span><a href="https://en.wikipedia.org/wiki/Imago" title="Imago">imago</a><span> of the agamic phase emerges in early summer following the gall's inception. The bisexual generation gall is very similar to that of </span><i>A. kollari,</i><span> effecting the live bud of </span><i>Quercus</i><span> species</span><sup id="cite_ref-Stubbs1_2-1" class="reference"><a href="https://en.wikipedia.org/wiki/Andricus_lignicola#cite_note-Stubbs1-2">[2]</a></sup><span> and has only been seen under culture conditions (1975).</span><sup id="cite_ref-darlington_3-0" class="reference"><a href="https://en.wikipedia.org/wiki/Andricus_lignicola#cite_note-darlington-3">[3]</a></sup><span> Removing and destroying cola-nut galls before they dry and the wasps emerge may help to reduce an infestation. While fairly large, and sometimes present in quite large numbers on scrub specimens, they cause no measurable harm.</span></p> It looks like an oak gall is…tag:silvopasture.ning.com,2019-11-09:6457695:Comment:1813212019-11-09T05:13:37.218ZJoanne Vaughnhttps://silvopasture.ning.com/profile/JoanneVaughn
<p>It looks like an oak gall is the problem here. Sources indicate that removal of affected branches may help save the tree. Luckily the tree is dormant now so removing and burning the infected material is the first and second step. spraying with something is second step --- unfortunately this tree is located in an apiary. The tree is not large, only about 20-25' tall . Might a severe pruning save the tree without spraying. It is a relatively isolated oak with only a maple nearby. </p>
<p>It…</p>
<p>It looks like an oak gall is the problem here. Sources indicate that removal of affected branches may help save the tree. Luckily the tree is dormant now so removing and burning the infected material is the first and second step. spraying with something is second step --- unfortunately this tree is located in an apiary. The tree is not large, only about 20-25' tall . Might a severe pruning save the tree without spraying. It is a relatively isolated oak with only a maple nearby. </p>
<p>It is interesting that they are made of a tannin compound that can be used to tan leather or as a mordant for a wool dye. <br/> <a href="https://storage.ning.com/topology/rest/1.0/file/get/3704413796?profile=original" target="_blank" rel="noopener"><img src="https://storage.ning.com/topology/rest/1.0/file/get/3704413796?profile=RESIZE_710x" width="200" class="align-left"/></a><br/> <cite>Brett Chedzoy said:</cite></p>
<blockquote cite="http://silvopasture.ning.com/forum/topics/help-oak-acorn-fungus-blight?commentId=6457695%3AComment%3A180982&xg_source=msg_com_forum#6457695Comment180982"><div><div class="xg_user_generated"><p>Hard to tell from the picture, but they look like oak galls, not acorns. Do an internet search for "oak twig and stem galls" and you'll find plenty of information to see if that's in fact what the issue is. </p>
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</blockquote> Hard to tell from the picture…tag:silvopasture.ning.com,2019-11-08:6457695:Comment:1809822019-11-08T23:30:11.319ZBrett Chedzoyhttps://silvopasture.ning.com/profile/BrettChedzoy
<p>Hard to tell from the picture, but they look like oak galls, not acorns. Do an internet search for "oak twig and stem galls" and you'll find plenty of information to see if that's in fact what the issue is. </p>
<p>Hard to tell from the picture, but they look like oak galls, not acorns. Do an internet search for "oak twig and stem galls" and you'll find plenty of information to see if that's in fact what the issue is. </p>