Growing lavender , genus " Lavandula , " has become a popular cottage manufacture due to the plant ’s many uses . Under controlled growing experimental condition , the perennial herb has few insect or disease problems . However , lilac-colored foliage fungus , Septoria lavandulae , sometimes referred to as Septoria folio spot , can taint plants of the lavender family , include angustifolia varieties and lavendin loanblend , under certain weather bear on conditions .

Fungus Identification

Septoria lavandulae appears near the edges of aged leave-taking low on the plant life or within shaded field and looks like gray spots . The small size of the fungus take growers to do a thorough scrutiny of plant life on a regular cornerstone . As the fungus progresses , the spots enlarge and sometimes touch each other , forming large lesions with empurpled / brownish borderline .

Germination

Lavender is well grown in areas with depleted humidity since repeated high humidness can germinate Septoria lavandulae spores and cause plant disease . In region with tender temperature and high humidness the fungus usually become problematical in late summer and gloaming , however , long stretches of wet atmospheric condition in the springiness and summertime can cause early onset of the disease .

Transmission

The fungus can overwinter on lavender tissue paper ; therefore , it can be spread any meter during the growing time of year . Water have the spore cases puff up and once free the spores can be spread out by wind , pee splashes during rainstorms , irrigation , and hoi polloi walking through the soaked fields . Plants growing in near proximity can easily become victims of the disease . Septoria lavandulae often appears in greenhouse plants due to favorable raise stipulation such as high humidity and overhead watering .

Plant Damage

Lavender leaf fungus can have a detrimental effect on plant life , run from loss of leave to a general weakening of the plant . This can subdue growth and reduce bloom and oil production . The disease has not been proven to interpolate the herbaceous plant ’s good for you flowers in term of odor or appearing .

Prevention

Prevention begins with site grooming and constant weather eye during wet and humid conditions . reuse flora trays and spate should be thoroughly cleaned and disinfect to eliminate any lurk fungus from previous plants . Plants should be sit to take reward of strain electric current that increase ventilation in fields . Prior to planting , all lavender plants should be inspected to ensure the condition is not already present . New plant should be placed in a confined field aside from be plants . Restricting field access during prime fungus growth conditions can help curb the spread of the disease . antifungal agent must be used prior to the appearing of the disease . By remedy conditions that caused the fungus to grow , plants will recoup on their own .

References

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