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 utahensis and fiber by local Native American peoples such as the Havasupai. Among the Navajo, the plant is used to make blankets. Agave utahensis Agave utahensis is a species of agave known by the common name Utah agave. Varieties of the species include the Nevada agave and Kaibab agave. It is an uncommon plant of the United States' desert southwest, in the states of Utah, Nevada, Arizona, and California. "Agave utahensis" is a rosette-shaped agave having blue-green sharp-spiked leaves. The raceme inflorescence is very tall, reaching a maximum of 4 m (12 ft). It is generally yellow or yellow-green with bulbous