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Image Subject Name Scientific Name Description
5475219 excessive water uptake Trunk splitting caused by excessive water uptake.
5475250 herbicides (general) Metolachlor injury on Coccothrinax sp. Note branching in this normally single-stemmed species.
5475247 herbicides (general) Metsulfuron injury on Wodyetia bifurcata. Damage became visible about 7 months following application to the soil.
5475246 herbicides (general) Metsulfuron injury. Damage became visible about 7 months following application to the soil.
5475245 herbicides (general) Glyphosate injury on Phoenix sylvestris.
5475252 iron deficiency Severe Fe deficiency on on Caryota mitis.
5475561 iron deficiency Iron deficiency due to poor soil aeration caused by deep planting.
5475562 iron deficiency Iron deficiency due to poor soil aeration.
5475244 herbicides (general) Glyphosate injury on Phoenix roebelenii. Note that the palm has since grown out of the injury.
5475220 copper toxicity Foliar injury caused by a copper sulfate foliar spray on Acoelorrhaphe wrightii seedling.
5475221 copper toxicity Foliar injury on Acoelorrhaphe wrightii caused by a copper sulfate spray (right). Untreated leaf on the left.
5475563 coconut mite Aceria guerreronis Coconut mite damage on fruits of coconut.
5475311 high soluble salts Leaf tip necrosis caused by high soil soluble salts on Syagrus romanzoffiana seedling.
5475272 mites (Order Acari) Acari (Order) N/A Mite damage on Veitchia sp. seedling.
5475227 Fusarium wilt of queen and Mexican fan palms Fusarium oxysporum f. sp. palmarum A cross-section of a rachis illustrating the internal discoloration due to Fusarium wilt.
5475249 herbicides (general) Isoxaben plus oryzalin injury on Phoenix roebelenii.
5475248 herbicides (general) Oryzalin plus oxyfluorfen injury on Chamaedorea elegans.
5475325 thrips (Order Thysanoptera) Thysanoptera (Order) N/A Upper surface of leaf of Veitchia sp. damaged by thrips feeding.
5475327 water stress Collapsed and twisted trunk of water-stressed Roystonea regia.
5475326 water stress Leaf tip necrosis caused by water stress in Geonoma sp.
5475305 powerline decline Powerline decline on queen palm showing chlorotic and necrotic leaf tips.
5475324 thrips (Order Thysanoptera) Thysanoptera (Order) N/A Lower surface of Veitchia sp. leaf damaged by thrips feeding.
5475304 powerline decline Powerline decline of coconut. Note chlorotic and necrotic leaf tips.
5475329 wind Broken leaves in Bismarckia nobilis caused by high winds.
5475328 wind Tattered leaflets in Roystonea regia caused by high winds.
5475318 bitter leaf Ceratocystis paradoxa Queen palm trunk collapse due to Thielaviopsis trunk rot. Only a few young green leaves remain. Note the "stem bleeding" or oozing of plant liquid down the trunk from the point of collapse.
5475312 Sri Lanka weevil Myllocerus undatus Phoenix roebelenii leaf showing notching caused by Sri Lanka weevil.
5475308 West Indian cane weevil Metamasius hemipterus Feeding damage caused by larvae of Metamasius hemipterus on spindle palm.
5475310 West Indian cane weevil Metamasius hemipterus Close-up of leaf base of Phoenix canariensis infested with Metamasius hemipterus.
5475309 West Indian cane weevil Metamasius hemipterus Phoenix canariensis infested with Metamasius hemipterus. Note older living leaves hanging down against trunk.
5475307 royal palm bug Xylastodoris luteolus Severe damage caused by royal palm bug.
5475306 royal palm bug Xylastodoris luteolus Early damage caused by royal palm bug.
5475295 potassium deficiency Late stage potassium deficiency in coconut palm showing chlorotic, necrotic new leaves and tapered trunk. This palm died shortly after this photo was taken.
5475303 potassium deficiency Severely potassium-deficient Sabal palmetto.
5475302 potassium deficiency Potassium-deficient spindle palm showing increasing severity with leaf age.
5475301 potassium deficiency Potassium deficient older leaf of areca palm showing increasing severity towards the leaf tip.
5475300 potassium deficiency Potassium deficiency symptoms on older leaf of Chamaerops humilis. Note the translucent orange and necrotic spotting.
5475299 potassium deficiency Potassium deficiency symptoms on older leaves of fishtail palm.
5475298 potassium deficiency Potassium-deficient older leaves of pygmy date palm.
5475297 potassium deficiency Potassium-deficient older leaf of Livistona chinensis showing leaf discoloration and leaflet tip necrosis.
5475296 potassium deficiency Necrotic frizzled leaflets on older leaf of a potassium-deficient Dypsis cabadae.
5475294 potassium deficiency Potassium deficient older leaf of Dictyosperma album showing translucent yellow-orange spotting.
5475258 lightning Sudden crown collapse caused by lightning.
5475287 Pestalotiopsis leaf spot Pestalotiopsis palmarum Large, dark lesions have formed near or on the leaf base of all the rachides of this Phoenix roebelenii canopy. These lesions often continue to expand, and the fungus will infect the spear leaf and the apical meristem causing a bud and crown rot.
5475286 palm leaf skeletonizer Homaledra sabalella Frass tubes of palm leaf skeletonizer (Homaledra sabalella) on Latania lontaroides.
5475285 nitrogen deficiency Severe nitrogen deficiency in Veitchia sp. (far left). The palm on the right has died from chronic N deficiency.
5475284 nitrogen deficiency Nitrogen deficiency. Note the golden yellow petioles and rachides and light green colored leaflets.
5475271 manganese deficiency Severe Mn deficiency symptoms on Syagrus romanzoffiana with only necrotic petiole stubs emerging.
5475270 manganese deficiency Severe Mn deficiency symptoms on coconut.
5475269 manganese deficiency Manganese-deficient new leaf of Archontophoenix alexandrae. Note that symptoms are most severe towards the leaf base and least so towards the tip.
5475267 manganese deficiency Manganese deficiency symptoms on Phoenix roebelenii.
5475268 manganese deficiency Manganese deficiency on Roystonea regia. Note that frizzling is most severe towards the base of the leaves.
5475266 manganese deficiency Mangenese-deficient new leaf of Rhapis excelsa.
5475265 manganese deficiency Close-up of Mn-deficient leaf of Phoenix roebelenii showing longitudinal necrotic streaking.
5475264 manganese deficiency Close-up of leaflets of Mn-deficient Archontophoenix alexandrae leaf. Note the longitudinal necrotic streaking.
5475262 magnesium deficiency Older leaf of Phoenix canariensis showing Mg deficiency symptoms towards the leaf base and K deficiency symptoms towards the leaf tip.
5475263 magnesium deficiency Magnesium-deficient older leaf of Livistona rotundifolia showing broad yellow band around entire leaf as well as a yellow band along margins of single leaf segments in upper left.
5475261 magnesium deficiency Magnesium and potassium deficiency symptoms on Phoenix canariensis. The broad yellow-banded mid canopy leaves show Mg deficiency, while the oldest leaves show leaflet tip necrosis (K deficiency).
5475260 magnesium deficiency Magnesium deficiency symptoms. Note the broad yellow bands along the outer margins of the leaves, but distinctly green central portions of the leaves.
5475259 lightning Collapse of twelve trees of Veitchia mcdanielsii and Wodyetia bifurcata due to a single lightning strike.
5475257 lightning Trunk splitting in Phoenix canariensis caused by lightning.
5475254 iron deficiency Mild Fe deficiency symptoms on leaflets of new leaves (two upper leaflets) and symptom-free older leaves (two lower leaflets).
5475253 iron deficiency Severe Fe deficiency on queen palm seedling (left). Normal palm on right for comparision.
5475251 iron deficiency Iron-deficient Rhapis excelsa on left with healthy palms on right.
5475256 lightning Trunk bleeding caused by lightning.
5475235 spear leaf decay Gliocladium vermoesenii Pink spore mass of Gliocladium vermoeseni (Nalanthamala vermoeseni) on palm leaf base.
5475223 Fusarium Wilt of Canary Island Date Palm Fusarium oxysporum f.sp. canariensis Cross-section of a Phoenix canariensis rachis illustrating the internal discoloration due to fusarium wilt.
5475217 cold injury (low temperature) Basal spear leaf rot caused by secondary bacteria and fungi following freeze damage to the base of the spear leaf.
5475218 cold injury (low temperature) Wilting of living leaf tissue of coconut following a freeze.
5475216 cold injury (low temperature) Chilling injury on coconut showing the distribution of necrosis within and among leaves.
5475215 cold injury (low temperature) Chilling injury on Geonoma sp. showing foliar necrosis.
5475214 saddleback caterpillar Acharia stimulea Feeding damage caused by saddleback caterpillars.
5475212 boron deficiency Zigzag shaped leaflet tips ("hookleaf") in coconut is caused by a mild and temporary boron deficiency.
5475211 boron deficiency Crumpled ("accordion-leaf") young leaves caused by a chronic and severe boron deficiency. Note that the youngest leaf is emerging normally, indicating that this palm is recovering.
5475210 boron deficiency Multiple unopened spear leaves in Phoenix sylvestris caused by chronic boron deficiency.
5475209 boron deficiency Severe epinasty in Roystonea regia caused by chronic boron deficiency.
5475208 boron deficiency Trunk bending caused by boron deficiency.
5475207 boron deficiency Leaf truncation in coconut caused by periodic temporary boron deficiency. This pattern was the result of heavy rainfall events approximately every 10 days during the development of the leaf in the center.
5475206 boron deficiency Premature fruit drop in coconut caused by boron deficiency.
5475205 boron deficiency Crumpled new leaves ("accordion-leaf") on Heterospathe elata caused by severe boron deficiency.
5475204 boron deficiency Transverse puckering in queen palm, a symptom of mild boron deficiency.
5475203 boron deficiency Branching in queen palm caused by boron deficiency.
5475202 boron deficiency New leaves growing downward in caused by boron deficiency.
5475201 boron deficiency Leaf tip devoid of leaflets, a symptom of boron deficiency.
5475200 boron deficiency Inflorescence necrosis due to boron deficiency.
5475199 boron deficiency Corrugated leaf of queen palm caused by boron deficiency.
5475197 banana moth Opogona sacchari Damage caused by banana moth larvae on adult coconut palm.
5475196 banana moth Opogona sacchari Damage caused by banana moth larvae in Wodyetia bifurcata.
5475198 giant palm borer Dinapate wrightii Holes in trunk of Washingtonia filifera caused by Dinapate wrightii.
5454376 palm leaf skeletonizer Homaledra sabalella frass

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