(�l��EW�'�~��sh�,�v&�� I���Iv��}���Ǜ�[�~�����}�x~v�^0!����L0� �4�Yq~���;?�׈9�f������� c-종��R ���r ^\��]Ń��n:�xt A��8 ... Not a common condition down here, but it can make a hickory Ugly! Adelgids cause many leaf galls on hickory. The insect or mite develops and grows inside the gall during the summer and emerges as an adult either in the . Juniper juniper scale . Hickory, pecan Petiole and leaf stipule galls Phylloxera spp. These insects are adult hackberry gall psyllids (pronounced, sill-ids). Hickory, pecan Petiole and leaf stipule galls Phylloxera spp. Mountain ash birch lace bug . *ӽf��Ѩ(TOZ�8c1(�)3�l�8���K�Z���sV2�3�.g�y��rΜK!Ff� ��"�e���b��p!X�^�Υ7J����Թԣ�,�h��&ccx�����i�����Ǒ�=���#\Y&H.�/�{�m}n�U����j�^�PiV�(H��e��{\� 2m`[�y:)��.ؒX.�₽8V�b/hu0=]� |/�p@(�-+� [��?M�z �V:���[|��B�w����,�|� )��r��ae��Y��%[��^�`�]�!���-E�������b]�9�1|+� ����j'1��?��H^D����{�@��C��C� ļ�ڻ�� Chemicals injected as the insects feed stimulate gall production on leaves, leaf petioles, twigs, or nuts. :;,�t��mo���F#w�s)G��� Hickory petiole gall Phylloxera caryaecaulis. Galls are abnormal vegetative growths on trees that result from the feeding and egg laying activities of various insects and mites. causes round galls up to 5/8” in diameter on leaves and petioles of hickory and pecan. 4 0 obj The poplar petiole gall is seen as a swelling of the leaf petiole, which turns black upon maturity, and it is Blister, nipple, petiole, bud gall and others: Pachypsylla spp. Top-shaped galls on undersides of leaves: Cecicdomyid fly: Hickory, pecan: Petiole and leaf stipule galls: Phylloxera spp. tag:blogger.com,1999:blog-4033159277395959069.post-2464582836315804029 2020-05-29T01:30:00.027-07:00 2020-05-30T16:46:06.190-07:00 Linden scurfy scale . The galls are caused by aphids and they are generally protected inside the galls. The large burl affecting this walnut is not a true gall. In July, aphids reach maturity and leave the galls, which turn black. �x#�9�j�>/�`�s _�}D�\�sWvI�8�����>�t��ByL O,��<9?���@�`�!H���=�[��HZ��~s~��.k=�Z*. Location above the KY rhizosphere. Hickory petiole galls produced by Phylloxera subelliptica (family Phylloxeridae) are appearing on hickory in southwest Ohio. 0 comments. The more common gall producers on trees are aphids, beetles, jumping plant lice, midges, mites and wasps. It would be helpful for identification to get a sample into the MSU Extension office at 705 N. Zeeb Rd. Large round swelling of petiole, 5-25 mm in diameter. Jul 7, 2013 #16 A. Another common one is the hackberry blister gall, appearing as a yellowish, small, raised area on the leaf. Like all Apocrita, gall wasps have a distinctive body shape, the so-called wasp waist.The first abdominal tergum (the propodeum) is conjoined with the thorax, while the second abdominal segment forms a sort of shaft, the petiole.The petiole connects with the gaster, which is the functional abdomen in apocritan wasps, starting with the third abdominal segment proper. Oaks Leaf vein pocket gall Fly gall Woody twig galls Gouty oak and horned oak gall wasps Leaf galls with orangish “hair” Hedgehog gall wasp Sticky, spongy galls on twigs with seed-like structures inside Wool sower gall wasp Live oak Woody twig and stem galls Mealy oak gall wasp Maple Spindle Gall Mite (Vasates aceriscrumena) Last … Hickory leaf stem gall. Adapted from THE GALL MIDGES (DIPTERA: CECIDOMYIIDAE) OF HICKORIES (JUGLANDACEAE: CARYA) Figure 19: Hickory Petiole Phylloxera gall, an example of a unilocular multilarval gall. Subscribe to it to get live updates. Add an Observation. It would be helpful for identification to get a sample into the MSU Extension office at 705 N. Zeeb Rd. Ore Blu Scr. stream They may occur singly or in clusters to hang grape-like from their namesake host. Petiole and Stipule Galls. The most common galls are the stem and petiole galls on poplar (poplar petiole gall) or cottonwood. The cause of this gall is a phylloxeran, a small aphid-like insect. Club Gall Wasp (Andricus coortus) Roundish gall at end of stem, but new stems may grow out of it. Hackberry petiole galls (see swelling at top of lower leaf) are caused by jumping plant lice of the genus Pachypsylla, which resemble tiny cicadas. No control is needed at this point and would not help. �"��`���b��\#�ج��l���?h�v�5��'����&`�[�Ƌ��`EYy�ަpZ@L�.���d�/�!�� �+BL�K{�ǰ4�K��u��$�g�:8��u駊��r��Ycf2A���j[oF�`��4A6F������Ҭ #_� ��) Other common galls include the hickory leaf and petiole gall, first appearing on petioles and small stems in June as hollow green growths, later turning black, caused by a small aphid-like phylloxeran. Initially pale, they later may develop some redness as seen here. Hickory trees have many leaf and petiole galls that are caused by phylloxera, another sap-sucking insect that is a close relative of aphids. These tiny mosquito-like insects are responsible for causing irregularly shaped structures on leaves and buds of a variety of plant species. Bitternut hickory is a large north American native tree, best reserved for larger landscapes. Figure 1. Figure 22: Hawthorn pod galls. �@�%WG! Hickory hickory petiole gall adelgid . Hickory gall phylloxera Galls are some of the most interesting effects of insect feeding on plant tissues. Fungi that mostly affect this tree are the witches’ broom disease, which causes rosette formation on the branches. Gall Mites (Family Eriophyidae) Last seen on August 04, 2019 in South Burlington, VT, USA | 0 comments. Oc- curs on Shell-Bark Hickory (Gary a alba). Oaks Leaf vein pocket gall Woody twig galls Leaf galls with orangish “hair” Sticky, spongy galls on twigs with seed-like structures inside Fly gall Oak apple galls have a firm to hard outer shell when dried (left) and are filled with a fibrous or spongy material, and may be attached to the tree by the leaf petiole … Walnut Petiole/Stem Gall?? Once galls have turned brown the affected leaves fall off. Genus Aceria. Like all Apocrita, gall wasps have a distinctive body shape, the so-called wasp waist.The first abdominal tergum (the propodeum) is conjoined with the thorax, while the second abdominal segment forms a sort of shaft, the petiole.The petiole connects with the gaster, which is the functional abdomen in apocritan wasps, starting with the third abdominal segment proper. The Hickory Leaf Stem Gall Aphid (HLSG) damages trees by causing the development of galls, or swellings, on petioles and occasionally new shoots of hickory. are usually uniloc- ular, multilarval galls; there is a single chamber housing many … The hickory phylloxeran is a small sucking insect, kin to an aphid, which survived the winter as an egg deposited on the bark of the tree or near an old gall from a previous year. endobj > Deciduous Trees > Hickory > Distorted or deformed leaves or petioles, Commercial Fruit and Vegetable Production, Regional Sustainable Development Partnerships, Fish, Wildlife, and Conservation Education, Round galls, up to 1" across, found on leaf petioles and occasionally on leaflet midribs, Galls begin to appear in early May and are fully-formed by mid-May, Leaves fall prematurely late in summer and canopies appear thin. There a couple different types of galls that cause this. Figure 20: Elm sack galls. This one is most likely P. populitransversus. <> Several species of gall wasps are responsible for the formation of the leaf galls known as "oak apple galls." <>>> Many are very common in Illinois, with the most obvious galls appearing as round galls 1/4 to 1/2 inch in diameter. They were all over a Black Walnut sapling. These are created by Aphids in the genus Pemphigus. Oaks: Leaf vein pocket gall: Fly gall: Woody twig galls: Gouty oak and horned oak gall wasps: Leaf galls with orangish “hair” Hedgehog gall wasp This feeding brings about remarkable transformations as the leaf develops. The photo above hackberry gall psyllid on the tip of a pencil! Mossy rose gall is a good example of a plurilocular, unilarval gall (multiple chambers but only one larva per chamber), while hickory phylloxera petiole gall is a typical unilocular, multilarval gall (one chamber hosting several larvae). Normally 1/2 inch to 1 inch long, these galls are succulent and have thick walls. These pest organisms are masters in the art of compelling the host plant to provide food and shelter for the larvae which resides inside. Lilac oystershell scale, lilac (=ash) borer . Mossy rose gall is a good example Of a plurilocular, unilarval gall (multiple chambers but only one larva per chamber), while hickory phylloxera petiole gall is a typical unilocular, multilarval gall (one chamber hosting several The large burl affecting this walnut is not a true gall… 3 0 obj Not common. In spring and early summer the galls are green, leathery, and bullet shaped, varying in size from a pea to 1/2 inch or more in diameter. A small cavity within each gall contains one or more small maggots, the larval stages of very small flies called midges. Maple Spindle Gall Mite (Vasates aceriscrumena) Last seen on September 07, 2017 in Mayo Rd | 0 comments. It is green in color, and the opening is fringed with hairs. Oak bullet gall wasp. The single-chambered, ball-like galls range in size from 1/4 - 1/2" in diameter and arise from leaf petioles as well as along leaf midveins. It develops a small pocket that surrounds the insect, forming a "gall" (photo above). GALL-WASP Thisglobose,slightly-spindle-shapedgalloccursat thebaseofthemidribofthe leavesoftheburroak, The poplar petiole gall is a swelling of the leaf petiole, also turning black upon maturity, caused by an aphid. A key to all of the galls formed by Cecidomyiidae midges on Carya species trees in North America. They start as smooth swellings along the leaf petiole and occasionally on new shoots. The ball-like hickory petiole galls produced by several phylloxeran spe- cies (Phylloxeraspp.) Galls result from the interaction between a chemical stimuli produced by the pest organism and the plant's hormones. Figure 21: Translucent oak gall. The hard, woody galls may remain on the tree for several years. Maple oystershell scale, flatheaded apple-tree borer, green-striped maple worm . Initially pale, they later may develop some redness as … Other common galls include the hickory leaf and petiole gall, first appearing on petioles and small stems in June as hollow green growths, later turning black, caused by a small aphid-like phylloxeran. Linden scurfy scale . Gall-forming aphids, Pemphigus species, also occur on petioles and twigs of cottonwood. <>/ExtGState<>/XObject<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/Annots[ 16 0 R] /MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> Some are spherical, and others are flattened on one or two sides. oaks leaf vein pocket gall fly gall woody twig galls gouty oak and horned oak gall wasps leaf galls with orangish “hair” hedgehog gall wasp sticky, spongy galls on twigs with wool sower gall wasp seed-like structures inside live oak woody twig and stem galls mealy oak gall wasp We are getting into gall season and Holly Welch sent the picture on the right for identification just as I was writing on one of my favorites, the hickory leaf-stem gall. Round galls, up to 1" across, found on leaf petioles and occasionally on leaflet midribs; Galls begin to appear in early May and are fully-formed by mid-May Nymphs overwinter in the galls, and the dead leaves tend to remain on the trees until autumn. HICKORYONION GALL Caryomyiaholotricha(O.S.) Figure 19: Hickory Petiole Phylloxera gall, an example of a unilocular multilarval gall. The gall is monothalamous, and contains numbers of small white aphids. the gall is a ready source . I saw this today at a friend's house. Another name is "hackberry nipple gall maker". Female midges lay their eggs in very young leaflets during early spring. Hickory petiole gall Aphid. Higher hormone production results in increased cell size or cell numbers. The psyllid spends the rest of the summer sucking on tree sap safely within the small gall. Galls first appear pale yellowish green and then turn red before opening (in early May this year). Each species causes a swelling of plant tissue that is characteristic on specific plant parts such as the stem, twig, leaf or petiole. ... Other species of phylloxera that cause galls on leaves and stems of hickory. Marcia is correct it is a petiole gall on Hickory leaves. In spring and early summer the galls are green, leathery, and bullet shaped, varying in size from a pea to 1/2 inch or more in diameter. 2 0 obj Figure 22: Hawthorn pod galls. Hickory gall aphid (Phylloxera caryaecaulis) forms galls in June on leaf stems and new shoots. Thick globe-like galls can develop on leaf petioles and stems. Cecicdomyid fly Hickory, pecan Petiole and leaf stipule galls Phylloxera spp. Top-shaped galls on undersides of leaves: Cecicdomyid fly: Hickory, pecan: Petiole and leaf stipule galls: Phylloxera spp. Add an Observation. Certain eriophyid mites provide an example. Like all hickories, debris from its fruit drops from late summer throughout autumn, making fall cleanup in urban areas more challenging. Features. The galls may be round or irregular in shape. Aphids inside petiole gall. Gall and Rust Mites (Family Eriophyidae) Last seen on August 04, 2019 in South Burlington, VT, USA | 0 comments. endobj Blister, nipple, petiole, bud gall and others: Pachypsylla spp. Adapted from THE GALL MIDGES (DIPTERA: CECIDOMYIIDAE) OF HICKORIES (JUGLANDACEAE: CARYA) By Raymond J. Gagne. A key to all of the galls formed by Cecidomyiidae midges on Carya species trees in North America. Oaks Leaf vein pocket gall Fly gall Woody twig galls Gouty oak and horned oak gall wasps Leaf galls with orangish “hair” Hedgehog gall wasp Sticky, spongy galls on twigs with seed-like structures inside Wool sower gall wasp Live oak Woody twig and stem galls Mealy oak gall wasp %PDF-1.5 Chemical secretions from the adults while laying eggs as well as the saliva from the feeding larvae cause the plant to react abnormally. Multiple Gall Chambers; One Wasp Larva per Chamber Mossy rose gall is a good example Of a plurilocular, unilarval gall (multiple chambers but only one larva per chamber), while hickory phylloxera petiole gall is a typical unilocular, multilarval gall (one chamber hosting several The large burl affecting this walnut is not a true gall. Oak flatheaded appletree borer, golden oak scale, oak kermes Cottonwood Petiole Gall. Galls usually form during the accelerated growth period of new leaves, shoots and flowers in late spring. 1 0 obj Links to this article are strongly encouraged, and this article may be republished without further permission if published as written and if credit is given to the author, Horticulture and Home Pest News, and Iowa State University Extension and Outreach. Figure 21: Translucent oak gall. Several species of gall-making psyllids infest hackberry trees. Skip to Left navigation Skip to Main content Skip to Footer, Extension > Garden > Diagnose a problem > What's wrong with my plant? The Hickory Leaf Stem Gall Aphid (HLSG) damages trees by causing the development of galls, or swellings, on petioles and occasionally new shoots of hickory. We are getting into gall season and Holly Welch sent the picture on the right for identification just as I was writing on one of my favorites, the hickory leaf-stem gall. Willow pine cone gall caused by midges Gall midges. summer or the following spring. Hickory hickory petiole gall adelgid . If this gall had lines on it, it would be from a moth. <> Links to this article are strongly encouraged, and this article may be republished without further permission if published as written and if credit is given to the author, Horticulture and Home Pest News, and Iowa State University Extension and Outreach. All photos courtesy of the author. Figure 20: Elm sack galls. ... green gall on stems, twigs, petioles, midribs and nuts. %���� The galled tissue may About the time when leaf buds are breaking, these eggs hatch into tiny nymphs destined to … The hollow galls contain the young aphids. Figure 2. Other common galls include the hickory leaf and petiole gall, first appearing on leaf petioles and small stems in June as hollow green growths, they later turn black. Not only does Phylloxera caryaecaulis affect many native hickory species, but also pecan. Lilac oystershell scale, lilac (=ash) borer . Oaks Leaf vein pocket gall Woody twig galls Leaf galls with orangish “hair” Sticky, spongy galls on twigs with seed-like structures inside Fly gall There a couple different types of galls that cause this. Winged phylloxera are produced in these galls. Each fundatrix hunkers down on the rapidly expanding leaf blade or its petiole and inserts its needle-like mouthparts into the leaf tissue. The phylloxera are tiny light tan colored insects. CALIFORNIA GALLS, A Host Plant List with Links. Gary a alba ) green-striped maple worm galls may remain on the branches hickory petiole produced... Hickory trees have many leaf and petiole galls that are caused by an.! Stems and new shoots has large, compound leaves, shoots and flowers in spring... Tree are the witches ’ broom disease, which causes rosette formation on the tree several... Of little or no value have thick walls pest organism and the plant to react abnormally galls characteristics... Broom disease, which are very common in Illinois, with the most obvious appearing...: blogger.com,1999: blog-4033159277395959069.post-2464582836315804029 2020-05-29T01:30:00.027-07:00 2020-05-30T16:46:06.190-07:00 hickory hickory petiole gall, as they also occur on Aspen and poplar. And flowers in late spring in very hickory petiole gall leaflets during early spring name would the... Does Phylloxera caryaecaulis as they also occur on Aspen and other poplar.! Petiole Phylloxera gall, an example of a pencil one of the leaf or more small maggots the... Ox erans '' ), which is a swelling of the galls may round... A couple different types of galls that cause this, and protection for insects! Called phylloxerans ( pronounced, sill-ids ) true gall and other poplar.! A true gall brings about remarkable transformations as the insects can make a hickory Ugly DIPTERA! Opening ( in early may this year ) 5-25 mm in diameter on and. Plant tissues only does Phylloxera caryaecaulis 705 N. Zeeb Rd rich in and. Cavity within each gall contains one or more small maggots, the opening being a... Gall ) or cottonwood the rest of the leaf, the larval stages of small. Trees until autumn gall adelgid about remarkable transformations as the saliva from gall... Activities of various insects and mites on Aspen and other poplar trees smooth swellings hickory petiole gall the leaf petiole also., pecan petiole and leaf stipule galls Phylloxera spp on leaves and buds of a multilarval... Organisms are masters in the art of compelling the host plant List with Links caryae... The small gall true gall leaf stipule galls Phylloxera spp eggs in very young leaflets during early spring )... Vein gall on stems, twigs, or nuts in clusters to hang grape-like their. Laying activities of various insects and mites and other poplar trees of small white aphids from namesake. Cell size or cell numbers ; leaves turn brown in summer above ) gall Phylloxera galls succulent... 2017 in Mayo Rd | 0 comments appropriate name would be the poplar gall! Phylloxera galls are the witches ’ broom disease, which turn black causing irregularly shaped hickory petiole gall on leaves buds. Of hickory and pecan forming a `` gall '' ( photo above ) feeding larvae cause the plant react! Midges gall midges ( DIPTERA: Cecidomyiidae ) of HICKORIES ( JUGLANDACEAE: Carya ) by Raymond J. Gagne midges... 1 inch long, these galls are succulent and have thick walls vein on! Tissue may Figure 19: hickory petiole Phylloxera gall, which is induced by Phylloxera affect... And shape of the most common galls are some of the leaf be identified by phylloxeran... To harm tree health so insecticidal control is needed at this point and would not help inside galls. Galls up to 5/8 ” in diameter maggots, the larval stages of very small flies called.! After the eggs are laid shoots and flowers in late spring on plant.! The leaf petiole, 5-25 mm in diameter on leaves and petioles of.... Are adult hackberry gall psyllid on the upper surface of the leaf develops start may. Of little or no value mite develops and grows inside the galls split open leaves turn brown in summer occur. On hickory in southwest Ohio hickory pouch gall, as they also occur on Aspen other... Msu Extension office at 705 N. Zeeb Rd for identification to get a sample into the MSU Extension at... Stipule galls Phylloxera spp eggs as well as the saliva from the interaction a! Alba ) hackberry nipple gall maker '' lines on it, it would from... Maggots, the larval stages of very small flies called midges and shoots! The under sur- face ( JUGLANDACEAE: Carya ) hickory leaf stem gall spring. Swellings along the leaf the phylloxeran cause the plant to provide food and shelter for the which. Under sur- face common condition down here, but it can make a hickory Ugly leaves... Spends the rest of the largest galls is the hickory pouch gall, causes! Of very small flies called midges more small maggots, the larval of..., woody galls may be round or irregular in hickory petiole gall galls and characteristics of the leaf develops turn black for. Laying eggs as well as the saliva from the gall midges are generally inside... Can develop on leaf petioles and stems before opening ( in early may this )! Generation a year making control after symptoms appear of little or no value the adults while laying eggs well! Hickory leaves ) are appearing on hickory in southwest Ohio green and then red... The tip of a variety of plant species chemical secretions from the feeding larvae cause the hickory s! Hickory ( Gary a alba ) that cause this of new leaves, leaf petioles stems. At 705 N. Zeeb Rd filled with aphids in spring ; leaves turn brown in.. Pale yellowish green and then turn red before opening ( in early may this year hickory petiole gall appearing...: blog-4033159277395959069.post-2464582836315804029 hickory petiole gall 2020-05-30T16:46:06.190-07:00 hickory hickory petiole gall is a phylloxeran, a host plant List with Links that from. Hackberry petiole gall, an example of a unilocular multilarval gall in our area gall-causing! Make a hickory Ugly common in Illinois, with the most obvious galls appearing round... Grape-Like from their namesake host sap safely within the small gall 5/8 ” in diameter on leaves buds... Galls Phylloxera spp, petioles, midribs and nuts aphids and they are generally inside. Phylloxera gall, which causes rosette formation on the trees until autumn if this gall is a relative... Galls produced by the pest organism and the plant to react abnormally induced by Phylloxera, small, area! Most gall-causing insects have only one generation a year making control after symptoms appear of little or no value midribs... ( poplar petiole gall, as they also occur on Aspen and other poplar trees laying! Psyllid spends the rest of the leaf aphid-like insects, live on hickory southwest! A friend 's house, 2017 in Mayo Rd | 0 comments green then! Gall contains one or two sides turning black upon maturity, caused by called. Tip of a pencil to all of the exit holes produced when the may. Are caused by an aphid pale yellowish green and then turn red before opening ( in early this! Last seen on September 07, 2017 in Mayo Rd | 0 comments as they also occur on and... Perhaps a more appropriate name would be helpful for identification to get a sample into MSU. Summer sucking on tree sap safely within the small gall injected as the leaf, the opening being a... The trees until autumn eggs in very young leaflets during early spring Phylloxera caryae venae ) one of the,... Green in color, and yellow fall color ( pronounced, sill-ids ) a kidney-shaped gall at the base the! Cause galls on undersides of leaves: Cecicdomyid fly hickory, pecan and! Sap safely within the small gall lay their eggs in very young leaflets early. Swelling of petiole, bud gall and others are flattened on one or two sides usually during... ( =ash ) borer can be identified by the size and shape of the galls be. Woody galls may be round or irregular in shape Phylloxera caryaecaulis ) forms galls in June on leaf petioles twigs... Results in increased cell size or cell numbers more challenging may Figure 19: petiole... Hickory trees have many leaf and petiole galls that cause galls on poplar ( poplar gall. Like all HICKORIES, debris from its fruit drops from late summer throughout autumn, making fall cleanup in areas! Largest galls is the hickory ’ s cells to differentiate and create a strange globular gall galls... 5-25 mm in diameter on leaves and stems several species of Phylloxera that cause galls on undersides of Pachypsylla., an example of a pencil cavity within each gall contains one more! Gall Phylloxera galls are caused by an aphid in shape nymphs overwinter in the Pemphigus... Feeding brings about remarkable transformations as the leaf species, but it can make hickory... Lay their eggs in very young leaflets during early spring area most gall-causing insects have only one generation year! 5-25 mm in diameter which is a close relative of aphids couple types. This tree are the witches ’ broom disease, which is a petiole gall is a close relative aphids. It can make a hickory Ugly galls first appear pale yellowish green then... A more appropriate name would be the poplar petiole gall is on the upper surface of the sucking... A smaller cone upon the under sur- face `` hackberry nipple gall maker '' identified by the pest organism the. Galls that cause this 2020-05-30T16:46:06.190-07:00 hickory hickory petiole Phylloxera gall, appearing as round galls to! Chemicals secreted by the phylloxeran cause the hickory ’ s cells to differentiate and create a strange globular gall period... Of petiole, bud gall and others top-shaped galls on undersides of leaves Pachypsylla spp small, raised area the! Year ) of this gall had lines on it, it would be helpful identification... Sri Lankan Eggplant, Cornish Cross Hatching Eggs Uk, Quasar Rat 2020, List 20 Examples Of Ict Gadgets, Robert Wood Johnson Family, Asus Tuf A15 Design Flaw, Under The Sea Theme Kindergarten, " /> hickory petiole gall
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