Japanese Maple – White Spots on Leaves
![maple phyllosticta 1 | Walter Reeves: The Georgia Gardener japanese maple phyllosticta white spots](https://t9e4s3i5.rocketcdn.me/wp-content/uploads/2020/03/maple-phyllosticta-1-600x800.jpg)
Q: What are the “white spots” on my Japanese maple leaves? Just noticed them this week.
A: It’s a fungal disease called phyllosticta. It is unsightly but is rarely a big problem on Japanese maples.
Only under certain combinations of temperature and humidity will it appear. In the future, use slow-release, organic fertilizers so there is not so much lush growth at one time in spring.
My guess is that a couple of sprays of propiconazole (click for sources) would control it.
![maple phyllosticta 1 | Walter Reeves: The Georgia Gardener maple phyllosticta](http://www.walterreeves.com/wr2020/wp-content/uploads/2020/03/maple-phyllosticta-1.jpg)
maple phyllosticta
![maple phyllosticta 2 | Walter Reeves: The Georgia Gardener maple phyllosticta](http://www.walterreeves.com/wr2020/wp-content/uploads/2020/03/maple-phyllosticta-2.jpg)
maple phyllosticta