290 



smooth wheats yield an average of 37.4 bushels per acre. Six white 

 wheats average about 37 bushels, Avhile the red wheats average a little 

 over 38 bushels." 



" It has been the custom of this Station in past years to distribute 

 seed wheat in small quantities, gratuitously, to farmers in different 

 parts of the State, in return for which the Station required reports 

 giving description of soil, previous treatment, and results at harvest." 

 From lack of definiteness of conditions of treatment and of per- 

 sonal supervision by trained experimenters, the reports have been 

 unsatisfactory, and the Station, therefore, has discontinued the gra- 

 tuitous distribution of seed wheat, but will sell its surplus wheat to- 

 farmers of the State at moderate rates. 



BULLETIN Vol. II, No. 6 (SECOND SERIES), SEPTEMBER, 1889. 



Remedies for the plum curcitlio ( Coxotrachelus nenuphar), 

 C. M. Weed, M. S. (pp. 133-143).— A report on the continuation 

 of experiments begun in 1888, as recorded in the Report of the Ohio 

 Station for 1888, pp. 134-150. Details are given and illustrated by 

 diagrams. The following conclusions, provisionally announced over 

 a year ago,* are confirmed as the result of two seasons' work on two 

 varieties of cherry-trees and four varieties of plum-trees, during 

 which time 65,500 cherries have been individually examined : 



(1) About three-fourths of the cherries liable to injury by the 

 plum curculio can be saved by two or three applications of London 

 purple in the proportion of 1 ounce to 10 gallons of water. 



(2) A sufficiently large proportion of the plum crop can be saved 

 by the same treatment to insure a good yield when a fair amount of 

 fruit is set. 



(3) If an interval of a month or more occurs between the last 

 application and the ripening of the fruit, no danger to health need 

 be apprehended from its use. 



(4) Spraying with the arsenites is cheaper and more practical 

 than any other nietliod of preventing the injuries of this insect. 



Re:medies for the striped cucumber beetle (Diabrotica vit- 

 tata), C. M. Weed, M. S. (pp. 143-148). — The following summary 

 is taken from the bulletin : 



" The present article embodies the results of the season's work on a 

 series of experiments undertaken to determine the preventive or reme- 

 dial value of the following methods recommended to prevent the 

 injuries of the striped cucumber beetle: (1) the use of offensive 

 odors; (2) mechanical coatings of the leaves; (3) poisonous coat- 

 ings of the leaves; (4) inclosing plants under tents or gauze frames. 



" The experiments were made on a large scale under ordinary field 

 conditions during the summer of 1889, when the striped beetles 

 were exceedingly abundant. 



*Ohio Station Bulletin No. 4, p. 52. 



