. Diseases of bees. Bees. UNITED STATES DEPARTMENT OF AGRICULTURE BULLETIN No. 810 Contrlbntlon from the Barean of Entomolosy L. O. HOWARD. Chief Washington, PROFESSIONAL PAPER February 26,1920 EUROPEAN FOULBROOD By G. F. WHITE, Specialist in Insect Diseases CONTENTS Pago Introdnctlon 1 Name of the Disease 2 Healthy Larvae of the Age at which they Dieof EnropeanFonlbrood .... 3 Symptoms 4 Etlolocy 7 Technique IS Theimal Death Point of Baciilas pioton 17 Resistance of Barillas piston to Drying . 17 Resistance of Bacillus piuton when Dry to Direct Sunlight 19 Resistance of BacIUns pinton in
. Diseases of bees. Bees. UNITED STATES DEPARTMENT OF AGRICULTURE BULLETIN No. 810 Contrlbntlon from the Barean of Entomolosy L. O. HOWARD. Chief Washington, PROFESSIONAL PAPER February 26,1920 EUROPEAN FOULBROOD By G. F. WHITE, Specialist in Insect Diseases CONTENTS Pago Introdnctlon 1 Name of the Disease 2 Healthy Larvae of the Age at which they Dieof EnropeanFonlbrood .... 3 Symptoms 4 Etlolocy 7 Technique IS Theimal Death Point of Baciilas pioton 17 Resistance of Barillas piston to Drying . 17 Resistance of Bacillus piuton when Dry to Direct Sunlight 19 Resistance of BacIUns pinton in Water to Direct Sunlight .... ^ ... 20 Resistance of BaeHlns pinton !n Honey to Direct Sunlight 21 Page Resistance of Baciiiua pinton to Fermen- tation 21 Resistance of Bacillus piuton to Putrefac- tion 22 Viability of Bacillus pinton in Honey . 23 Viability of Bacillus pinton in Pollen . 24 Resistance of Baciilas pinton to Carbolic Acid '. 24 Eifect of Drugs on European Foulbrood 29 Transmission of European Foulbrood . 26 Diagnosis 28 Prognosis 31 Summary and Conclusions 81 Literature Cited 84 Explanation of Platea 87. WASHINGTON GOTERNMENT PBlNTINa OVFICB 1920. 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
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Keywords: ., bookcentury1900, bookdecade1900, bookpublisher, booksubjectbees
