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--- virology:p:phyllosticta [2026/07/03 03:37] – gate discussion/citations/confidence/credibility sections to trusted groups clonebot
+++ virology:p:phyllosticta [2026/08/23 22:26] (current) – vaugith
@@ Line 1: / Line 1: @@
-> ⚙️ **Auto-generated, pending human review.** This page was compiled automatically by a bot from community discussions and has **not yet been verified by an editor**; details may be imperfect and corrections are welcome. //Editors: delete this line once you have reviewed the page.//
+====== Phyllosticta ======
-====== Phyllosticta Leaf Spot (Phyllosticta Fungal Disease) ======
 {{virology:p:media:phyllosticta:873a00dd83ab7b83.jpg?400}}
 {{virology:p:media:phyllosticta:b9142129a81178a7.jpg?400}}
 ===== Description =====
-Phyllosticta Leaf Spot is an aggressive fungal disease caused by the pathogen *Phyllosticta*. It is characterized by rapid progression, presenting as distinct fungal lesions or black spots on the epidermis of infected cacti. If left unchecked, it poses a significant threat to the infected plant and can quickly spread to surrounding collections.
+Phyllosticta Leaf Spot is an aggressive fungal disease caused by the pathogen *Phyllosticta*. Forms light brown to tan lesions with no particular orientation or pattern. Often the lesions are boarded by a darker brown line and pycnidia fruiting bodies are uniformly distributed. Lesion can generally grow larger than either Phoma or Phomopsis, easily confused with both. If left unchecked, it poses a significant threat to the infected plant and can quickly spread to surrounding collections.
-===== History & Origin =====
-The disease is a known pathogen within cactus collections. A notable documented case occurred in June 2026 when grower Mel Moe sought assistance for an aggressive infection, which was subsequently diagnosed by community expert Gee Bee.
 ===== Cultivation Notes =====
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 * **Fungicide Protocol:** Apply systemic and contact fungicides. Alternate applications of thiophanate-methyl and azoxystrobin, or use Mancozeb, to prevent the pathogen from developing resistance.
 * **Substrate Optimization:** Verify that the media pH is within the appropriate range for Trichocereus and ensure the soil has excellent drainage.
-* **Nutritional Support:** Supplement the fertilizer regimen with additional calcium, magnesium (calmag), and potassium to bolster the plant's natural immune defenses.
+* **Nutritional Support:** Supplement the fertilizer regimen with additional calcium, magnesium, and potassium to bolster the plant's natural immune defenses.
 <ifauth @trusted_grower,@admin>