62 DECIDUOUS FRUIT INSECTS AND INSECTICIDES. 
of lead to 50 gallons of Bordeaux mixture. The first application 
was made before the blossom-buds opened, and two later applica- 
tions were made, applying them at the time of appearance of the 
beetles in injurious numbers. This method of control has been con- 
ducted in this vineyard for three consecutive seasons, and the owner 
states that he is satisfied with the results that he has obtained and 
considers it far more effective and less expensive than the hand- 
picking method of control. 
Located at Girard, Pa., is a vineyard of 40 acres, under the manage- 
ment of Mr. M. C. Kibler, which is subject to the attacks of rose- 
chafers every season. This vineyard was visited on June 23, 1910, 
at which date about 20 women and girls were engaged in handpick- 
ing the beetles from the entire area. The whole vineyard had been 
gone over daily in this manner for a week previous to our visit, yet 
there was evidence of considerable injury by the beetles. At this 
date Mr. George F. Miles, of the Bureau of Plant Industry, was 
making Bordeaux-mixture applications on several acres for control 
of the black-rot fungus. Five pounds of arsenate of lead were added 
to the Bordeaux mixture applied to this area. When the party of 
women who were handpicking the rose-chafers did the collecting 
over the sprayed area on the following day, they found only a small 
number of beetles there as compared with the number found on the 
unsprayed parts of the vineyard. 
THE USE OF SWEETENED ARSENICALS. 
In the summer of 1907 it was reported that an arsenical spray that 
had been sweetened with cheap molasses had proved effective in 
poisoning the rose-chafer in the vineyards in Michigan. In Septem- 
ber of that year the writer visited Mr. Frank Stainton, at Lawton, 
Mich., who was reported to have used this sweetened arsenical. In 
conversation with Mr. Stainton it was discovered that this sweetened 
arsenical was a proprietary mixture made by a local doctor. Mr. 
Stainton stated that he received a sample of it rather late in the 
season and applied some of it to rosebushes infested by the rose- 
chafer. The beetles appeared to be attracted to the sweetened poison, 
eating it in apparent preference to the flowers of the plant, and died 
shortly after. Upon analysis this sweetened arsenical was found to 
consist of arsenite of lime and molasses. Mr. Stainton expressed his 
intention to use sweetened arsenite of lime against the rose-chafer in 
his vineyards during the season of 1908. In the spray experiments 
conducted in the vineyard of Dr. R. Kelly, at Moorheadville, Pa., in 
1908, against the rose-chafer, 1 gallon of molasses was added to 50 
gallons of Bordeaux containing arsenite of lime made according to 
Kedzie’s formula (4 ounces of white arsenic to 50 gallons of the 
above-mentioned sweetened mixture). One gallon of molasses was 
also added to Bordeaux mixture and arsenate of lead, and in addi- 
