Walnut aphid investigations: Tests in northern California during the 1953 season stressed need for thorough treatment for control
oleh: A Michelbacher, C Davis
| Format: | Article |
|---|---|
| Diterbitkan: | University of California Agriculture and Natural Resources 1954-07-01 |
Deskripsi
Systemic insecticides have been extensively investigated for control of the walnut aphid at Linden for the past two years and in the Walnut Creek, Yuba City, and San Jose areas during 1953.