New equipment for obtaining host material for the mass production of Trichogramma minutum, an egg parasite of various insect pests / by Herbert Spencer, Luther Brown, and Arthur M. Phillips.
出版資料
Washington, D.C. : U.S. Dept. of Agriculture, 1935.
複本
說明
18 p. : ill. ; 23 cm.
系列
Circular / United States Department of Agriculture ; no. 376
