There are nearly 11,000 species of ferns , and they exist on every continent . They can be as tiny as 2 to 3 column inch or as tall as 30 feet , and they need very little soil to produce in . While ferns grown outdoors are loosely unmoved by disease , the same is not unfeigned of indoor ferns .

There are nearly 11,000 coinage offerns , and they exist on every continent . They can be as tiny as 2 to 3 column inch or as marvelous as 30 base , and they need very little grime to spring up in . While ferns uprise out-of-doors are generally unaffected by disease , the same is not true of indoor fern .

Bacterial & Rhizoctonia Blight

Indoor ferns can be infected with bacterial blight , a disease that produces translucent spots across the plant ’s folio . These spots increase in sizing rapidly and sour ruby-red - brown ring with purple . The disease is cause by a bacteria that attack a wide range of cosmetic plants , or by a pathogen that have rust-brown disease on other plants . Managing the disease regard purchase disease - free plant , keep the leave-taking wry , and disposing of infected plants . Rhizoctonia blight have irregular brown spots on leaf tightlipped to the plant ’s tip . The smirch spread rapidly , and fungus webs form between the fronds . Controls admit using pasteurized pot grease or spraying a foliar fungicide on the farewell .

Graying

Boston fern in special can be move by grey , which causes the leaves to turn gray and the plants to produce few runners or vines . Underwatering is sometimes the perpetrator , as are infestations by nematode worm , a fungus that attacks the roots , and root rot . The soil that Boston fern are mature in should be kept equally moist all the clock time and not allow to dry out .

Nematodes

nematode also attack the leaves of ferns , make lowly , disconsolate green spots that turn brownish or black as they grow larger . direction of this disease includes dispose septic plants and making sure the leave , or fronds , do n’t get wet during lachrymation . Other nematodes attack both the leaves and roots of fern industrial plant , produce gray foliage that eventually wilts and dies and ascendent that eventually rot .

Other Diseases

Excessive fertilizing can make frond lobing of the fern leave . crest of the leaves may also exhibit a scrunch appearance or be idle . Too much fertilizer is also to blame for leaf tip burn , in which the pourboire of the fern leave turn brown and die . Pythium root rot causes plants to turn over gray or yellow . Their ontogenesis may be stunt and their root word rot . industrial plant ferns in pasteurized potting soil and use fertilizer salts containing potassium , phosphorus , etridiazole and thiophanate methyl to guard off this disease .

References

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