. Bulletin of the Department of Agriculture. Agriculture; Agriculture. DEPARTMENT BULLETIN No. 1426. Washington, D. C. August, 1926 THE CLOVER ROOT BORER By L P. ROCKWOOD, Associate Entomologist Cereal and Forage Insect Investigations Bureau of Entomology CONTENTS Page Introduction 1 Synonymy ................. 2 Habits of Related Species 3 Economic History 3 Distribution 6 Description 7 Seasonal History *.. 10 Life History 20 Sexual DeTolopment 26 Pate Number ol Generations 28 Rate of Reproduction 29 Ecology 31 Damage * 35 Natural Enemies 38 Control 39 Summary 45 Literature Cited 46 WASHI
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. DEPARTMENT BULLETIN No. 1426. Washington, D. C. August, 1926 THE CLOVER ROOT BORER By L P. ROCKWOOD, Associate Entomologist Cereal and Forage Insect Investigations Bureau of Entomology CONTENTS Page Introduction 1 Synonymy ................. 2 Habits of Related Species 3 Economic History 3 Distribution 6 Description 7 Seasonal History *.. 10 Life History 20 Sexual DeTolopment 26 Pate Number ol Generations 28 Rate of Reproduction 29 Ecology 31 Damage * 35 Natural Enemies 38 Control 39 Summary 45 Literature Cited 46 WASHINGTON GOVERNMENT PRINTING OFFICE 1926. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Dept. of Agriculture. [Washington, D. C. ?] : The Dept. : Supt. of Docs. , G. P. O.
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