Brown spots on your bonsai leaves are not only unsightly ; they can lead in lasting injury to your tree . They are your bonsai ’s way of indicate a trouble , and by the prison term your bonsai develops brown spots , the ailment that ’s causing them has already put in itself . The upper side is , in most cases , brown slur on bonsai leaves can be obviate and then forbid in the future .

Leaf Spot

folio spot is a common effort of chocolate-brown spots on bonsai leaves . This fungal disease is spread out by spore that infect the bonsai ’s leafage . It initially appears as very tiny spots that enlarge as the disease progresses . This disease is generally restrain to the foliage of the bonsai but will cause dieback of stem and leg if leave untreated .

Bacterial Leaf Spot

Bacterial leaf stain can also result in brown spots on fungous leaf , though this disease is less usual for bonsai . Similar to fungous leaf spot , it travels by bacterial spores that taint the leave of the bonsai . Other diseases such as powdery mildew , botrytis blight and verticillium wilt can also do dark-brown spot on bonsai leaf . Bacterial foliage spot differs from the others because , if depart untreated , the infection can spread onto the stems , offset and tree trunk of the bonsai .

Insect Infestation

Insect infestation is another common cause of dark-brown spot , resulting from wounds that are because of the insects as they flow on the foliage . Though the small bites will not cause death of the entire folio , the seize with teeth area will decay and perish .

Control

Bonsai leaves that have developed brown spots must be pruned away . These leaves can not be revitalized . However , a combining of snip and chemical treatments will aid the bonsai recrudesce new , uninfected foliage . Chemical treatment should come in the sort of fungicidal , antibacterial or insecticide spray treatment that you select based on the bonsai ’s individual complaint . Many local nurseries and home improvement retailers carry the needed Cartesian product .

Prevention

The good agency to prevent brown spots on bonsai leaves is to keep your bonsai levelheaded . Bonsais that get a balanced amount of nutrients , piss and sun will maintain a vigorous growth rate with a strong ascendant system . Healthy bonsais are better fain to fight off potential danger . Bonsai owners should also include schedule fungicide and insecticide treatments when there is never-ending menace of disease and insects .

References

…