| 5475238 |
Graphiola leaf spot |
Graphiola phoenicis |
Palm leaflets with numerous sori and emerging spores. Note that this leaf does not have potassium deficiency. There are no leaf spot symptoms, only the sori of the fungus. |
| 5475239 |
Graphiola leaf spot |
Graphiola phoenicis |
Palm leaflets with numerous sori and emerging filaments (look like tiny strings) with spores. There are no leaf spot symptoms, only the sori of the fungus. |
| 5475236 |
Graphiola leaf spot |
Graphiola phoenicis |
The brown spots are not early symptoms of Graphiola leaf spot, but are symptoms of potassium deficiency. The black pustules are sori of Graphiola phoenicis. |
| 5475237 |
Graphiola leaf spot |
Graphiola phoenicis |
Sori of Graphiola phoenicis have erupted through the leaf epidermis. Some of the sori have filaments emerging from them. The mostly brown spots are not a symptom of Graphiola leaf spot, but a symptom of potassium deficiency. |
| 5475315 |
Texas Phoenix Palm Decline |
Phytoplasma TPD |
The infected trees of Phoenix canariensis in the center and on the right have more dead leaves than would be normal, and are in contrast to the healthy palm on the left. |
| 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. |
| 5475258 |
lightning |
|
Sudden crown collapse caused by lightning. |
| 5475262 |
magnesium deficiency |
|
Older leaf of Phoenix canariensis showing Mg deficiency symptoms towards the leaf base and K deficiency symptoms towards the leaf tip. |
| 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). |
| 5475257 |
lightning |
|
Trunk splitting in Phoenix canariensis caused by lightning. |
| 5475222 |
Fusarium Wilt of Canary Island Date Palm |
Fusarium oxysporum f.sp. canariensis |
Close-up of leaf with one side exhibiting necrotic leaflets and a brown stripe on the petiole and rachis due to fusarium wilt. |
| 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. |
| 5475224 |
Fusarium Wilt of Canary Island Date Palm |
Fusarium oxysporum f.sp. canariensis |
A Phoenix canariensis leaf with one side exhibiting necrotic leaflets and a brown stripe on the petiole and rachis due to fusarium wilt. |
