Your search returned 19 results.

Three new aphids from Utah / by George F. Knowlton by

Material type:

Text; Format: print ; Literary form: Not fiction

Availability: Items available for loan: Parasitologia Agricola (1).

Notes on a few species of macrossphini (aphididae) from Utah with descriptions of two new species / by George F. Knowlton by

Series: Aphididae; 18

Material type:

Text; Format: print ; Literary form: Not fiction

Availability: Items available for loan: Parasitologia Agricola (1).

Notes on a few species of Neothomasia from Utah (Homop. Aphididae) / by George F. Knowlton by

Knowlton, George F

Series: Aphidae; 15

Material type:

Text; Format: print ; Literary form: Not fiction

Availability: Items available for loan: Parasitologia Agricola (1).

A new juniper aphid from Utah with notes on a few other species / by George F. Knowlton by

Knowlton, George F

Series: Aphidae; 15

Material type:

Text; Format: print ; Literary form: Not fiction

Availability: Items available for loan: Parasitologia Agricola (1).

Aphid notes from Utah / by George F. Knowlton by

Knowlton, George F

Series: Aphidae; 15

Material type:

Text; Format: print ; Literary form: Not fiction

Availability: Items available for loan: Parasitologia Agricola (1).

Studies on the beet leafhopper / by George F. Knowlton by

Knowlton, George F

Material type:

Text; Format: print ; Literary form: Not fiction

Availability: Items available for loan: Parasitologia Agricola (1).

Some Utah aphids / by George F. Knowlton by

Knowlton, George F

Series: Aphidae; 14

Material type:

Text; Format: print ; Literary form: Not fiction

Availability: Items available for loan: Parasitologia Agricola (1).

Notes on a few species of myzini (aphididae) from Utah with descriptions of two new species / by George F. Knowlton by

Knowlton, George F

Series: Aphidae; 23

Material type:

Text; Format: print ; Literary form: Not fiction

Availability: Items available for loan: Parasitologia Agricola (1).

A new rabbit brush aphid from Utah / by George F. Knowlton by

Knowlton, George F

Series: Aphidae; 23

Material type:

Text; Format: print ; Literary form: Not fiction

Availability: Items available for loan: Parasitologia Agricola (1).

10.

A few capitophorus species of Utah with descriptions of two new species (Aphididae) / by George F Knowlton by

Knowlton, George F

Series: Aphidae; 23

Material type:

Text; Format: print ; Literary form: Not fiction

Availability: Items available for loan: Parasitologia Agricola (1).

11.

A few western aphids with description of three new species / by George F. Knowlton by

Knowlton, George F

Series: Aphidae; 24

Material type:

Text; Format: print ; Literary form: Not fiction

Availability: Items available for loan: Parasitologia Agricola (1).

12.

Notes on Utah lachnea (Aphididae) / by George F. Knowlton by

Knowlton, George F

Series: Aphidae; 27

Material type:

Text; Format: print ; Literary form: Not fiction

Availability: Items available for loan: Parasitologia Agricola (1).

13.

Vegetable insect contrl / by Geroge F. Knowlton, Donald w. Davis y Reed S. Roberts by

Series: Circular; 300

Material type:

Text; Format: print ; Literary form: Not fiction

Publication details: Logan, Utah : Utah State University

Availability: Items available for loan: Parasitologia Agricola (1).

14.

Control of stawberry root-infesting weevils / by George F. Knowlton and Ray I. James by

Material type:

Text; Format: print ; Literary form: Not fiction

Publication details: Logan, Utah : Utah Agricultural Experiment Station

Availability: Items available for loan: Parasitologia Agricola (1).

15.

Greenhouse fumigation / by George F. Knowlton by

Knowlton, George F

Series: College Series ; 472

Material type:

Text; Format: print ; Literary form: Not fiction

Publication details: Logan, Utah : Utah State Agricultural College. Agricultural Expperiment Station

Availability: Items available for loan: Parasitologia Agricola (1)Call number: PA-C 632 B85.

16.

Studies on the morphology of the beet leafhopper : eutettix tenellus (Baker) / by George F. Knowlton by

Knowlton, George F

Series: Hemiptera; 7 Bulletin Technical; 212

Material type:

Text; Format: print ; Literary form: Not fiction

Publication details: Logon Utah : Utah State Agricultural College. Agricultural Experiment Station, 1929

Availability: Items available for loan: Parasitologia Agricola (1).

17.

A new willow aphid from Utah / by George F. Knowlton by

Knowlton, George F

Series: Aphidae; 17

Material type:

Text; Format: print ; Literary form: Not fiction

Publication details: s.l. : s.n.

Availability: Items available for loan: Parasitologia Agricola (1).

18.

The aphid genus Pseudoepameibaphis by

Material type:

Text; Literary form: Not fiction

Availability: Items available for reference: Biblioteca Central: Excluido de préstamo (1)Call number: R-1630.

19.

Potato psyllid investigations by

Knowlton, George F

Material type:

Text; Literary form: Not fiction

Availability: Items available for reference: Biblioteca Central: Excluido de préstamo (1)Call number: R-999.

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Your search returned 19 results.