Of the 200 recognized species of agave , most varieties will bloom only once and then conk out . The flowers feature both manlike and female office and can hold water in its large , fleshy , spiked leaves . Several disease commonly affect the agave , but persevering gardening and care can forbid or heal most diseases .
Anthracnose Fungus
Anthracnose fungus creates small lesion on the spiky leaves of the agave and the the crown of the flora . A crimson or orangish spore mass develop inside the lesions and they distribute well from water splashing either via an overhead sprinkler or from rain . Treat the agave using thiophanate methyl , a broad - spectrum fungicide , useable at most local garden sum . To prevent anthracnose fungus , use a land soaking hose or a drip line .
Root And Crown Rot
The most vernacular cause of root and pate waste in agave plant comes from the filth - borne pathogen ( diseases get by either a virus or bacteria ) bacteria Erwinia and the fungus Fusarium . The fungus commonly happens when the industrial plant grows in shady conditions or if there is an over abundance of moisture in the air or land . The fungus appears as black lesion on the leaves . ITreat fungus early by cut back all infested agave leaves .
Agave Snout Weevil
The agave snout weevil feed on the leaves and crown . The female beetle lays its eggs between the foliage spike , and the eggs think of into chuck / larvae which feed on the agave . The agave snout weevil can allow pathogens to enroll the century plant which can finally kill the plant . Apply a broad - spectrum insecticide in the spring to help prevent the agave snout weevil .
Plant Bugs
Plant bug ( caulotops barberi ) feed on the American aloe in late summertime to early tumble . The century plant turns white-livered , eventually killing the flora . Apply insecticidal Georgia home boy or a broad - spectrum insecticide in the other dawn or late eventide to control the plant bugs .
Eryophid Mites
Eryophid mites are microscopic and not seeable to the raw eye . Mite damage causal agency deform new farewell and go old folio . Control eryophid speck by applying a systemic or contact powder miticide for agave plants , available at garden supply store .
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