A 56.20:18/949
|
Cotton fleahopper / |
1 |
A 56.20:19
|
Cotton leafworm / |
1 |
A 56.20:19/949
|
Cotton leafworm / |
1 |
A 56.20:20
|
Red spider / |
1 |
A 56.20:20/949
|
Red spider / |
1 |
A 56.20:22
|
White pine blister rust / |
1 |
A 56.20:23
|
Stem rust / |
1 |
A 56.20:24
|
White-fringed beetles / |
1 |
A 56.20:25
|
Sweetpotato weevil / |
1 |
A 56.20:25/956
|
Sweetpotato weevil / |
1 |
A 56.20:26/960
|
The gypsy moth / |
1 |
A 56.20:28
|
The alfalfa weevil. |
1 |
A 56.20:no.3/rev
|
Colorado potato beetle / |
1 |
A 56.20:no.4/rev.1963
|
Japanese beetle : Popillia japonica Newman. |
1 |
A 56.20:no.21
|
The pink bollworm : Pectinophora gossypiella. |
2 |
A 56.24:
|
Insects in relation to national defense. |
1 |
A 56.6:P 69/938
|
Revised rules and regulations governing the movement of plants and plant products into and out of the District of Columbia. |
1 |
A56.6..P69_938
|
Revised rules and regulations governing the movement of plants and plant products into and out of the District of Columbia. |
1 |
A 56.6:R 86
|
Rules and regulations of Bureau of Entomology and Plant Quarantine. |
1 |
A56.6..R86
|
Rules and regulations of Bureau of Entomology and Plant Quarantine. |
1 |