Rapid spread of alfalfa pest: Spotted alfalfa aphid infests about of state's alfalfa acreage within two years after its discovery in California
oleh: R Smith, J Swift, J Dibble
| Format: | Article |
|---|---|
| Diterbitkan: | University of California Agriculture and Natural Resources 1956-02-01 |
Deskripsi
The worst pest of alfalfa ever to reach California has spread within two years to 33 alfalfa-producing counties.