Filbertworm control: Experimental insecticides show promise in tests on northern California walnuts
oleh: A Retan, G Post, A Michelbacher
| Format: | Article |
|---|---|
| Diterbitkan: | University of California Agriculture and Natural Resources 1959-07-01 |
Deskripsi
In the second year of tests, Guthion and Sevin–not yet released for use on walnuts–again showed encouraging control of the filbertworm on Payne and Franquette walnuts.