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 parryi size, plus its low water use and low maintenance, Huachuca agave is considered a good landscaping plant for desert residential landscaping. It requires full sun. It is hardy to roughly , though there are reports of specimens surviving temperatures at . Parry's agave is evergreen. Aged agave produce a twelve-foot stalk with bright yellow blooms. They then die after blooming, as all leaf and root resources are put into the stalk, flowers, and seeds. It can be propagated by either offset or seed. This plant has gained the Royal Horticultural Society’s Award of Garden Merit. Agave parryi Agave parryi, known