Ozone stipple of grape leaf: Lesions on the upper leaf surfaces and premature leaf fall occur on grapevines in areas polluted by air-borne ozone
oleh: B Richards, J Middleton, W Hewitt
| Format: | Article |
|---|---|
| Diterbitkan: | University of California Agriculture and Natural Resources 1959-12-01 |
Deskripsi
Grape leaf stipple occurs in the vicinity of Los Angeles and San Francisco.