My pre-bonsai chojubai has not been very vigorous this summer, and its leaves are striated yellow/green.
Is this indicative of over/under watering and/or a pest/fungal problem? Any suggestions on treatment are welcome.
Thanks!
My pre-bonsai chojubai has not been very vigorous this summer, and its leaves are striated yellow/green.
Is this indicative of over/under watering and/or a pest/fungal problem? Any suggestions on treatment are welcome.
Thanks!
It’s not fungal. Maybe a nutrient deficiencie and/or root issues.
Carefully lift it out and check the outer roots for issues like rot. If the roots look healthy, check out the link below for nutrient issues.
The roots look fine - maybe a little thick due to the large substrate.
I’ll try adding micronutrients. Thanks!
When you checked the roots did you notice any lumps? When was it last repotted? It could be a case of root galls, but from the photos it looks it also looks like chlorosis which is caused by over watering possibly with a high pH which stops the plant making chlorophyll. You can treat with calmag