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 ====== Witch's Broom ======
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 ===== Description =====
-Witch's Broom is not a specific genetic clone, but rather a pathological condition or symptom characterized by abnormal, hyper-clustered growth. In *Trichocereus* and other cacti (such as *Lophophora*), it manifests as extreme, dense clustering of growth points, stacking pups, and abnormal white areolar fluff.
+Witch's Broom is a pathological condition and growth symptom in cacti, characterized by highly abnormal, hyper-clustered growth. It affects various species, including //Trichocereus// and //Lophophora//.  This pathogen is highly contagious and spreads rapidly through collections. It is not curable, and left to run its course eventually ends in plant death.
+  * **Rib Count:** In affected areas, distinct ribs are typically absent or highly reduced due to the extreme density of the stacking growth points.
+  * **Spines:** Spines on the clustered pups are often miniature, dense, and can range from light yellow to brown, though they are frequently obscured by excessive areolar wool.
+  * **Epidermis:** The epidermis remains light to dark green in early onset but turns yellow to red as the disease progresses and growth outpaces nutrient availability. In heavily afflicted areas the epidermis is heavily crowded by the rapid proliferation of new shoots.
+  * **Areoles:** Areoles in the affected zones often produce an abundance of dense white fluff or wool.
+  * **Foolproof tell:** Pups on pups on pups. Pups coming out of every areole of other recent pups.
-Because it is a disease state or symptom rather than a cultivar, there is no standard rib count, spine length, spine color, or epidermis color. Instead, the physical presentation is defined by:
+=====Origin =====
-* **Hyper-clustering:** Growth points stack rapidly. True Witch's Broom presents growth that is at least "3X" more clustered than a typical active growth point.
+  * **Pathological Origin:** True Witches Broom is caused by a Mycoplasma-Like Organism (MLO), a type of phytoplasma.
-* **Abnormal Fluff:** Excessive white areolar wool or fluff often accumulates around the stacking pups.
+  * **Pest Induced spread:** The phytoplasma infection can spread from insects feeding on afflicted plant areas, then feeding on other healthy plants.
-* **Aborted Meristems:** Pest damage or infection can cause the main growing tip to terminate, leading to a massive flush of lateral pups.
-It is easily confused with benign genetic mutations (such as crested or monstrose growth forms, particularly in cultivars like "Olivia" which are prone to funky growth in crosses like Olivia x Jess), natural caespitose growth habits (e.g., *Lophophora williamsii f. caespitosa*), or localized pest damage from mealybugs, mites, or caterpillars. Early-stage monstrose growth or hormonal changes in reverting plants can also mimic these symptoms.
+===== Commonly confused with =====
+  * **Monstrose growth:** This condition is easily confused with natural monstrose, crested, or caespitose growth forms (such as //Lophophora williamsii f. caespitosa//). Certain monstrose genetic lines, such as crosses involving the cultivar "Olivia", are highly prone to throwing funky, clustered growth that can be confused with Witch's Broom.
-===== History & Origin =====
+  * ** Pest damage:** Non-infectious broom-like growth can be triggered by physical damage to the meristem. Sucking pests like mealybugs, mites, or caterpillars can damage the growing tip, causing it to terminate and throw a dense cluster of lateral pups. If pests are treated growth will eventually return to normal.
-The term "Witch's Broom" historically refers to a deformity in woody plants, but in cactus cultivation, it describes a highly feared, infectious condition. The primary pathogen associated with the infectious form of the disease is a Mycoplasma-Like Organism (MLO), also known as a phytoplasma. Scientific literature, such as *Advances in Tissue Culture and Eliminating of the Pathogeny of Witch-Broom Disease (MLO)*, documents the pathology of this condition.
-While the exact origin of the pathogen in *Trichocereus* collections is undocumented, it is widely recognized as a highly contagious systemic threat. However, the term is also used colloquially by growers to describe non-infectious, look-alike growth anomalies caused by environmental stress, hormonal imbalances in reverting monstrose plants, or severe pest damage.
 ===== Cultivation Notes =====
-Managing suspected cases of Witch's Broom requires immediate action to protect the rest of the collection:
+Proper management of suspected Witch's Broom is critical to protecting a collection:
-* **Quarantine:** Immediately isolate any suspect plant. Suspect plants should be kept at a significant distance (e.g., 200 yards) from the main collection.
+  * **Quarantine:** Immediately isolate any suspect plant. Keeping it quarantined at a significant distance (e.g., 200 yards) from the main collection is highly recommended while monitoring the growth.
-* **Culling (Infectious Phytoplasma):** If true infectious Witch's Broom (MLO) is suspected, the consensus recommendation is to destroy the plant entirely. Burning the plant, pot and all, is advised to prevent it from spreading.
+  * **Culling:** If infectious phytoplasmic (MLO) Witch's Broom is suspected, the safest course of action is to burn or trash the plant, pot and all, to prevent rapid spread.
-* **Surgical Therapy:** For valuable specimens or cases suspected to be pest-induced, growers have attempted surgical removal. This involves cutting off all affected parts with an isopropyl alcohol-sterilized knife, dusting the wounds with sulfur, removing all feeder roots, dipping the main root in a diluted hydrogen peroxide solution, and repotting in fresh soil.
+  * **Surgery:** For valuable specimens showing localized or pest-induced damage, growers have successfully excised the affected parts. Use a knife sterilized with isopropyl alcohol to cut away the clustered growth. Dust the wounds with sulfur. Keep quarantined for an extended time period to ensure broom type growth does not reappear.
-* **Pest Control:** If the clustering is caused by pests (such as mealybugs or caterpillars terminating the meristem), treat the infestation immediately. Once the pests are eliminated, the plant may resume normal growth.
+  * **Pest Management:** Closely inspect the grow area for pests. Treat for whatever pests are present. This should help prevent spread and reintroduction.
-* **Environmental Evaluation:** Before culling, assess if the growth is a reaction to nutrients or lighting, as certain genetic lines (like "Olivia" crosses) display similar funky growth under specific environmental conditions.
+<ifauth @trusted_grower,@admin>
 ===== Community Discussion & Citations =====
 //Analysis of the discussion.//
+The community discussion centers on distinguishing true infectious Witch's Broom from benign look-alikes. Experienced growers emphasize that "Witch's Broom" is often used as a catch-all term for a set of symptoms rather than a single disease. While the phytoplasmic (MLO) variant is highly contagious and destructive, many cases of "brooming" are actually caused by localized pest damage (such as mealybugs or caterpillars terminating the meristem) or genetic mutations.
-The community is divided on whether "Witch's Broom" should be defined strictly as the infectious phytoplasmic disease (MLO) or as a general symptom of meristem damage.
+In particular, crosses involving the cultivar "Olivia" are noted for naturally producing funky, highly clustered growth points that can easily be mistaken for the disease. Topic experts advise adjusting environmental factors like nutrients and lighting before panicking, as these genetic lines frequently exhibit systemic responses to cultivation inputs.
-Kelly Beth Costello provides scientific backing linking the disease to MLOs, emphasizing its rapid spread and recommending immediate destruction of infected plants. Sam Payne clarifies this distinction, noting that while pest-induced damage can mimic the symptoms and clear up after treatment, the phytoplasmic bacterial form is highly contagious and fatal.
+^ Date ^ Speaker ^ Key Insight/Quote ^
+| 2026 (approx) | Gee Bee | "No, Olivia is known for funky growth in crosses. This is systemic environmental; nutes, lighting etc." |
+| 2026 (approx) | Kelly Beth Costello | "I would burn it, pot and all or it spreads fast." |
+| 2026 (approx) | Sam Payne | "Witches broom is the name for a set of symptoms not a specific disease. So this looks like witches broom caused by pest insects, once treated it hopefully will clear up. Phytoplasmic bacterial witches broom is the nasty contagious hard to treat one that people burn plants about." |
+| 2026 (approx) | Thomas Lauritzen | "Does not look like WB to me. Looks like a active grow point. WB will be 3X this "clustered". You are good" |
+| 2026 (approx) | Matt Olson | "I'm not an expert on the broom, but I don't think it's brooming. If this was just a regular non monstrose cactus, I would be more suspicious. Which is broom, does affect the hormone levels But this just could be the mutation." |
+| 2026 (approx) | ScrapGoat Benjamin | "Oh yeah. My opinion id say quarantine. cut it off. Dust with sulfur. Let it heal. Or you could let it go but if it actually is broom and you let it go you might regret it" |
+| 2026 (approx) | Cody Hinds | "witch's broom isn't a disease, it is a symptom. Sometimes it is caused by viral, fungal, bacterial, or insect infestations, sometimes it is caused by heat or sun stress." |
-Conversely, Cody Hinds and ScrapGoat Benjamin view it as a symptom that can be triggered by stress, pests, or pathogens. Topic authority Gee Bee warns that genetic mutations, particularly in "Olivia" crosses, are frequently misidentified as Witch's Broom when they are actually showing systemic environmental responses to lighting and nutrients. Thomas Lauritzen provides a diagnostic rule of thumb, stating that true Witch's Broom will be at least three times more clustered than a normal active growth point.
+===== Contributor Confidence =====
+//Visible to trusted reviewers only.//
+^ Contributor ^ Confidence ^
+| Gee Bee | 10/10 |
+| Kelly Beth Costello | 8/10 |
+| Sam Payne | 8/10 |
+| Thomas Lauritzen | 7/10 |
+| Matt Olson | 7/10 |
+| ScrapGoat Benjamin | 6/10 |
+| Cody Hinds | 6/10 |
-^ Date ^ Speaker ^ Confidence Score ^ Key Insight/Quote ^
-| 2026 (approx) | Gee Bee | 10 | "No, Olivia is known for funky growth in crosses. This is systemic environmental; nutes, lighting etc." |
-| 2026 (approx) | Sam Payne | 8 | "Witches broom is the name for a set of symptoms not a specific disease. So this looks like witches broom caused by pest insects, once treated it hopefully will clear up. Phytoplasmic bacterial witches broom is the nasty contagious hard to treat one that people burn plants about." |
-| 2026 (approx) | Kelly Beth Costello | 8 | "It spreads via every means available, not worth it to me to threaten a collection." |
-| 2026 (approx) | Thomas Lauritzen | 7 | "Does not look like WB to me. Looks like a active grow point. WB will be 3X this "clustered". You are good" |
-| 2026 (approx) | Matt Olson | 7 | "I'm not an expert on the broom, but I don't think it's brooming. If this was just a regular non monstrose cactus, I would be more suspicious." |
-| 2026 (approx) | Johnathon Siwiec | 7 | "I cut off all broom parts, used iso to clean knife. Dusted with sulfer, cut off all feeder roots main root still nice and white with no tinge of pink." |
-| 2026 (approx) | ScrapGoat Benjamin | 6 | "Oh yeah. My opinion id say quarantine. cut it off. Dust with sulfur. Let it heal." |
-| 2026 (approx) | Cody Hinds | 6 | "witch's broom isn't a disease, it is a symptom. Sometimes it is caused by viral, fungal, bacterial, or insect infestations, sometimes it is caused by heat or sun stress." |
 ===== Credibility Notes =====
-* **Gee Bee** is recognized as a topic authority (10/10) whose expertise overrides general speculation, particularly regarding environmental and genetic factors in specific cultivars like "Olivia".
+* **Gee Bee:** Recognized as a premier topic authority on Trichocereus genetics. Their expertise on "Olivia" crosses and environmental growth triggers overrides general community speculation.
-* **Kelly Beth Costello** (8/10) and **Sam Payne** (8/10) provided highly detailed, scientifically grounded explanations distinguishing infectious phytoplasmic pathogens (MLOs) from pest-induced symptoms.
+* **Kelly Beth Costello:** Provided direct scientific literature citations regarding Mycoplasma-Like Organisms (MLO) and offered clear, actionable biosecurity advice.
-* **Thomas Lauritzen** (7/10) and **Matt Olson** (7/10) offered clear, actionable diagnostic criteria regarding clustering density and genetic mutations.
+* **Sam Payne:** Provided a highly detailed, accurate botanical breakdown distinguishing between pest-induced meristem termination and contagious phytoplasmic infections.
-* **Johnathon Siwiec** (7/10) provided a detailed, step-by-step treatment protocol based on direct cultivation experience.
+* **Thomas Lauritzen & Matt Olson:** Offered consistent, detailed diagnostic criteria regarding clustering density, hormonal shifts, and genetic mutations.
-* **ScrapGoat Benjamin** (6/10) and **Cody Hinds** (6/10) provided helpful general advice and conceptual framing, though they noted their limitations in expert-level experience.
+* **ScrapGoat Benjamin & Cody Hinds:** Provided solid, practical cultivation advice and accurate conceptual definitions of the symptom, backed by years of observation.
+</ifauth>