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Cilt sonuçları

The Red Spider on Cotton

E. A. McGregor · Yayınevi bilinmiyor

16 sayfa · 1912

Agricultural pests

The Citrus Thrips

E. A. McGregor · Yayınevi bilinmiyor

12 sayfa · 1944

Citrus

The Sugar-beet Thrips

Albert Franklin Burgess, Carl William Thompson, Charles Dwight Marsh, E. A. McGregor, Francis Burzley Milliken, Frank Cummings Cook, Fred Hebard Hillman, George Asbury McMurdo, Harold Nelson Humphrey, Herbert Hager Mowry, · Yayınevi bilinmiyor

Publications on Fish Parasites and Diseases

E. A. McGregor · Yayınevi bilinmiyor

92 sayfa · 1963

Fishes

The Red Spider on Cotton and how to Control it

E. A. McGregor · Yayınevi bilinmiyor

20 sayfa · 1916

Cotton

Nearctic Mites of the Family Pseudoleptdae

E. A. McGregor · Yayınevi bilinmiyor

56 sayfa · 1949

Mites

Natal Grass

James Stuart Ball, C. L. Marlatt, Carleton Roy Ball, Curtis Hernon Kyle, E. A. McGregor, Edmund H. Gibson, Emanuel Alexandrovich Goldenweiser, Fred Corry Bishopp, Furman Lloyd Mulford, , · Yayınevi bilinmiyor

Fig Insects in California

Perez Simmons, William Doyle Reed, E. A. McGregor · Yayınevi bilinmiyor

782 sayfa · 1931

Fig

Farmers' Bulletin

E. A. McGregor · Yayınevi bilinmiyor

16 sayfa · 1928

Agriculture

The Mites of Citrus Trees in Southern California

E. A. McGregor · Yayınevi bilinmiyor

50 sayfa · 1956

Citrus

The Ice Well for the Dairy Farm

Alfred Paul Dachnowski-Stokes, Arnold Orlando Benson, Bruce Berger Derrick, Curtis May, Curtis Paul Clausen, Erastus Newton Bates, Erval Jackson Newcomer, George Arceneaux, · Yayınevi bilinmiyor

The True Cricket

E. A. McGregor · Yayınevi bilinmiyor

16 sayfa · 1929

Cotton

CiltThe Red Spider on Cotton, by E. A. McGregor,...E. A. Mac Gregor

The Red Spider on Cotton, by E. A. McGregor,...

E. A. Mac Gregor · Yayınevi bilinmiyor

22 sayfa · 1913

Kategori yok

CiltThe Red Spider on Cotton and how to Control It. E. A. McGregor,...E. A. Mac Gregor

The Red Spider on Cotton and how to Control It. E. A. McGregor,...

E. A. Mac Gregor · Yayınevi bilinmiyor

14 sayfa · 1928

Kategori yok

MitesAcarinaNathan Banks, E. A. McGregor, Alfred Nalepa

Acarina

Nathan Banks, E. A. McGregor, Alfred Nalepa · Yayınevi bilinmiyor

Sayfa sayısı yok · 1889

Mites

FishesPublications on Fish Parasites and Diseases, 330 B.C. - A.D. 1923U.S. Fish and Wildlife Service

Publications on Fish Parasites and Diseases, 330 B.C. - A.D. 1923

U.S. Fish and Wildlife Service · Yayınevi bilinmiyor

84 sayfa · 1964

Fishes

CiltDescriptions of Seven New Species of Red SpidersUnited States National Museum, E.A. Mcgregor

Descriptions of Seven New Species of Red Spiders

United States National Museum, E.A. Mcgregor · Yayınevi bilinmiyor

Sayfa sayısı yok · 1916

Kategori yok

CiltRed Spider on Cotton (Tetranychus Bimaculatus Harvey).United States. Department of Agriculture, E. A. Mcgregor

Red Spider on Cotton (Tetranychus Bimaculatus Harvey).

United States. Department of Agriculture, E. A. Mcgregor · Yayınevi bilinmiyor

Sayfa sayısı yok · 1912

Kategori yok

CiltRed Spider on Cotton and How to Control It. (Rev. 1934).E. A. Mcgregor, U.S. Dept. of Agriculture. Bureau of Entomology, United States. Department of Agriculture

Red Spider on Cotton and How to Control It. (Rev. 1934).

E. A. Mcgregor, U.S. Dept. of Agriculture. Bureau of Entomology, United States. Department of Agriculture · Yayınevi bilinmiyor

Sayfa sayısı yok · 1917

Kategori yok

AlgaeRevision of the North American Genera and Species of the Phalaenid Subfamily Plusiinae (Lepidoptera)E. A. McGregor, Elmer Yale Dawson, James Halliday McDunnough

Revision of the North American Genera and Species of the Phalaenid Subfamily Plusiinae (Lepidoptera)

E. A. McGregor, Elmer Yale Dawson, James Halliday McDunnough · Yayınevi bilinmiyor

45 sayfa · 1938

Algae