Agave tequilana Through the 1990s, diseases spread, particularly "Fusarium" fungi and "Erwinia" bacteria, exacerbated by the low genetic diversity of the agave plants. Other problems include the agave weevil, "Scyphophorus acupunctatus", and a fungus, "Thielaviopsis paradoxa". According to a 2004 study, additional pathogens, "Erwinia carotovora", "Enterobacter agglomerans", "Pseudomonas mendocina", and "Serratia" spp. are responsible for continued rot. The homoisoflavanones 5,7-dihydroxy-3-(4-methoxybenzyl)-chroman-4-one, 7-hydroxy-3-(4-hydroxybenzyl)-chroman-4-one and 4’-demethyl-3,9-dihydro-punctatin can be isolated from "A. tequilana". Agave tequilana Agave tequilana, commonly called blue agave () or tequila agave, is an agave plant that is an important economic product of Jalisco, Mexico, due to its role as the base ingredient
Agave eggersiana interested parties (concerned government agencies, the scientific community and/or industry) submit data or suggestions concerning this species (USFWS 1998b). The plant is being cultivated at the St. George Village Botanical Garden in St. Croix U.S.V.I.(USFWS 1998a) and at Fairchild Botanical Gardens in south Florida. "Agave eggersiana" has flowering stalks up to 7 m (23 feet) in height and has large, yellow tubular flowers that produce flattened black seeds (USFWS 1998a). Agave eggersiana Agave eggersiana, Eggers' century plant, is an endangered species of spiky plant which grows in the Virgin Islands, in dry, exposed areas. "Agave eggersiana" is a perennial herb