| 000 | 00441 am a2200121 a 4500 | ||
|---|---|---|---|
| 100 | 1 | _aHartzell, F.Z., Strickland, L.F. | |
| 245 | 1 |
_aPlant lice injurious to apple orchards _bIII. delayed dormant spray for the control of rosy and green apple aphids |
|
| 260 |
_aGeneva _c1921 |
||
| 300 | _a1-41 p. | ||
| 942 |
_2udc _cB |
||
| 440 | _aAphids, Apple, Orchards, Plant New York Agricultural Experiment Station. Bulletin No. 487 | ||
| 901 | _aS52828 | ||
| 999 |
_c110692 _d110692 |
||