BEPORT OF THE SECRETARY OF AGRICULTURE. 99 



Miscellaneous — Continued . 



Statistics of Cooperative Extension Work, 1922-23 D. C. 253 



Status and Results of Boys' and Girls' Club Work, Northern and 



Western States, 1921 D. C. 255 



Composition of Filter Press (Lime) Cake D. C. 257 



Frost Resistance in Flax D. C. 264 



Plant Insects: 



The More Important Apple Insects F. B. 1270 



Weevils in Beans and Peas F. B. 1275 



Nicotine Dust for Control of Truck Crop Insects F. B. 1282 



Lime-Sulphur Concentrates : Preparation, Uses, and Designs for 



Plants - F. B. 1285 



The Red-necked Raspberry Cane-Borer F. B. 1286 



The European Corn Borer and Its Control F. B. 1294 



Insect Enemies of Chrysanthemums F. B. 1306 



Control of the Common filealybug on Citrus Fruit in California— F. B. 1309 

 The Corn Earvporm : Its Ravages on Field Corn and Suggestions 



for Control F. B. 1310 



The Striped Cucumber Beetle and How to Control It F. B. 1322 



The Green June Beetle D. B. 891 



Curculios that Attack the Young Fruits and Shoots of Walnut 



and Hickory D. B. 1066 



Biology of the Lotus Borer D. B. 1076 



Experiments with Spray Solutions for Preventing Insect Injury 



to Green Logs D. B. 1079 



Effect of Low Tempetature on the Hatching of Gipsy-Moth Eggs_ D. B. 1080 



Biology of the Papaya Fruit Fly, Toxotrypana Curvicauda D. B. 1081 



Broad-Nosed Grain Weevil D. B. 1085 



Zygobothria Nidola, An Important Parasite of the Brown-Tail 



Moth D. B. 1088 



The Gipsy Moth on Cranberry Bogs D. B. 1093 



Impounding Water in a Bayou to Control Breeding of Malaria 



Mosquitoes D. B. 1098 



Summary of Insect Conditions Throughout the United States 



During 1921 D. B. 1103 



The Lead-Cable Borer or " Short-Circuit Beetle " in California— D. B. 1107 



Chemical Changes in Calcium Arsenate During Storage D. B. 1115 



Natural Control of the Citrus Mealybug in Florida D. B. 1117 



Citrus Scab : Its Cause and Control D. B. 1118 



The Deterioration of Felled Western Yellow Pine on Insect-Con- 

 trol Projects D. B. 1140 



The Barrier Factors in Gipsy Moth Tree-Banding Material D. B. 1142 



Chemical, Physical, and Insecticidal Properties of Arsenicals D. B. 1147 



Feeding Habits of the Japanese Beetle which Influence its Con- 

 trol r>- B. 1154 



Studies on Contact Insecticides D. B. 1160 



Length of the Dormancy Period of the Sugar-Beet Nematode in 



Utah D. C. 262 



Preliminary Report on Control of San Jose Scale with Lubri- 

 cating Oil Emulsion D. C. 263 



Dispersion of the Boll Weevil in 1922 D. C. 266 



Dusting for the Cotton-Boll Weevil D. C. 274 



