Aztec dodder
Cuscuta azteca
The Aztec dodder (Cuscuta azteca) belongs to the Convolvulaceae family. It is an obligate stem parasite that lacks chlorophyll and true roots, relying entirely on host plants for its survival and growth.
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Aztec dodder
This species is classified as a significant quarantine pest. By wrapping around host stems and penetrating them with haustoria, the parasite extracts essential nutrients, water, and carbohydrates, causing severe stress to the host.
Its natural distribution is centered in Mexico and Central America. Due to its biological adaptability, it poses a constant risk to agriculture if introduced into suitable climates through seed contamination.
The primary economic impact involves total crop failure in heavily infested patches and a reduction in the overall quality of harvested produce due to the metabolic depletion of the host.
Beyond direct physical damage, the Aztec dodder serves as a vector for various viral and phytoplasmal pathogens, facilitating the spread of diseases across vast agricultural areas.