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Displaying 1 to 5 of 5 results for Purdue Agriculturist
The Airplane in Insect Control
Publication: Purdue Agriculturist
Subject: Combs, O.B.
Date: 12/1928
vol. 23, No. 3 p. 64
Publication: Purdue Agriculturist
Subject: Combs, O.B.
Date: 12/1928
vol. 23, No. 3 p. 64
Spraying versus Dusting for insect and disease control
Publication: Purdue Agriculturist
Subject: Combs, O.B.
Date: 6/1929
vol. 23, No. 9 p. 222
Publication: Purdue Agriculturist
Subject: Combs, O.B.
Date: 6/1929
vol. 23, No. 9 p. 222
Protecting your bees during winter
Publication: Purdue Agriculturist
Subject: Combs, O.B.
Date: 10/1929
vol. 24, No. 1 p. 6
Publication: Purdue Agriculturist
Subject: Combs, O.B.
Date: 10/1929
vol. 24, No. 1 p. 6
Mediterranean Fruit Fly
Publication: Purdue Agriculturist
Subject: Combs, O.B.
Date: 11/1929
vol. 24, No. 2 p. 32
Publication: Purdue Agriculturist
Subject: Combs, O.B.
Date: 11/1929
vol. 24, No. 2 p. 32
Natural Enemies of Harmful Insects
Publication: Purdue Agriculturist
Subject: Combs, O.B.
Date: 3/1930
vol. 24, No. 6 p. 130
Publication: Purdue Agriculturist
Subject: Combs, O.B.
Date: 3/1930
vol. 24, No. 6 p. 130
