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Flat top decay syndrome of the giant cardon cactus of Baja California, Mexico

Flat top decay syndrome of the giant cardon cactus of Baja California, Mexico. Other symptoms of flat top decay and gray decay (Presentation no. 4). Click to progress.

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Flat top decay syndrome of the giant cardon cactus of Baja California, Mexico

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  1. Flat top decay syndrome of the giant cardon cactus of Baja California, Mexico Other symptoms of flat top decay and gray decay (Presentation no. 4) Click to progress

  2. A second pattern of flat-top decay, found only in the southern Bahía Concepcíon area (site 4 on the map). The decay starts with a single deep crack in the main stem of the plant, without apparent additional rotting

  3. Deep cracks may appear anywhere along a branch

  4. When the crack is deep enough, the branch falls

  5. Common flat-top decay of cardon at Bahía Concepcíon

  6. A flat-top branch may develop a new side branch that can grow to more than 5 m

  7. A third type of decay, found only south of El Conejo. The entire plant becomes gray or white and later dies

  8. Please download presentation number 5 describing why the affected cacti disappear

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