Pear thrips
Moulton, Dudley
Pear thrips Content and index - Washington 1909 - 109-117 p. - Pear, Index United States Department of Agriculture, Bureau of Entomology. Bulletin No. 68 .
Pear thrips Content and index - Washington 1909 - 109-117 p. - Pear, Index United States Department of Agriculture, Bureau of Entomology. Bulletin No. 68 .