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 margaritae to five mm long and .5 mm thick. The Species description was published in 1889 by Townshend Stith Brandegee. A synonym of this species is "Agave connochaetoden" Trel. "Agave margaritae" is a representative of the genus "Agave". It is under domiciled in Baja California Peninsula and differentiated through leaf and flower structure characteristics. The species is related to "Agave vizcainoensis". "Agave margaritae" is cultivated in Huntington Botanic Garden in San Marino, California. Agave margaritae Agave margaritae is a species of plant from the Agave genus. Its common name in English is "Magdalena Island Agave". The plant is endemic to Baja