18 



DEPARTMENT OF AGRICULTURE BULS. 826-8.50. 



Wheat- 

 belt— 



location, farm practices, wheat yield, etc '. 



rent contracts, bulletin by E. A. Boeger 



galls of Tylenchus tritici, description 



grain anatomy, description „ 



injury by western grass-stem sawfly 



nematode diseases caused by Tylenchus tritici, bulletin by 



L. P. Byars 



nematodes, control methods 



Wheats, hard, soft, and blended, flours examination 



Wilt, bacterial — 



of cucumbers, relation of cucumber beetle 



of cucurbits, bulletin by Frederick V. Rand and Ella M. A. 

 Enlows 



of cucurbits, control methods 



of cucurbits, distribution in United States 



viability in soil 



Winter — 



feeding of southern cattle, recommendations 



feeds for cattle in South 



"Wire-grass country." See " Piney woods" region. 



Wisconsin, lumber production, 1918, by mills and by woods 



Woodpeckers, destruction of apple-tree borers 



Woods, lumber production by kinds and by States, 1918 



Worming, apple trees for borer control, directions 



Wounding, small fruits and cherries, relation of temperature, bulle- 

 tin by Lon A. Hawkins and Charles E. Sando 



Wyoming, lumber production, 1918, by mills and by woods 



Yellow-stripe disease. See Mosaic disease. 



Zinc arsenate, use against bean ladybird 843 



Bulletin 





No. 



Page. 



850 



1-3 



850 



1-15 



842 



9-10 



839 



4 



841 



3-8 



842 



1-40 



842 



32-35, 37 



f 



17-18, 



839{ 



21-26, 



1 



27-28 



828 



21-25,43 



828 



1-43 



828 



36-40 



828 



34-36 



828 



12-13 



827 



43-46 



827 



34-38 



r 



6-11, 13, 



845-1 



16, 21-25, 



28-37, 40, 



1 



42-47 



847 



29-30, 41 



845J 



15-39, 

 42-47 



847 



31-32, 41 



830 



1-6 



r 



6-11, 14, 



845 



16,38, 



! 



42-47 



17 



o 



