Ascospore Release of <i>Togninia minima</i>, Cause of Esca and Grapevine Decline in California

Fig. 1. Typical tiger-striped pattern of esca on the foliage of an infected Thompson Seedless grapevine in Madera Co., California.



Image from Plant Health Progress article:
Ascospore Release of Togninia minima, Cause of Esca and Grapevine Decline in California