U. S. D. A., Bui. 66, Part VII. I Inly 19. 190v. 
SOME INSECTS INJURIOUS TO TRUCK CROPS. 
MISCELLANEOUS NOTES ON TRUCK-CROP INSECTS. 
By F. H. Chittenden. Sc. D.. 
In Charge of Truck Crop and Stored Prod net Insect Investigation*. 
SUCCESSFUL USE OF ARSENATE OF LEAD AGAINST THE 
ASPARAGUS BEETLE. 
During the first week of June. 1908. Mr. W. A. Orton reported the 
common asparagus beetle (Crioceris asparagi L.) very injurious at 
Takoma Park, D. C, and made some experiments with arsenate of 
lead with complete success. Directions for application, as given in 
Circular 102 of this Bureau, were followed. The first application was 
made with 1 pound of arsenate of lead to 20 gallons of water and the 
second a week later, as the plants had grown rapidly in the mean- 
time and a great many new larva? had hatched. The second appli- 
cation was made at the rate of 1 pound to 15 gallons of water. The 
first application destroyed most of the insects, but after a few days 
a considerable number had developed. These appeared to have been 
all killed the day after the second spraying. Xeither spraying seemed 
to injure the plants in the least, but the liquid adhered in fine drops to 
the foliage and was visible there for some time. An unsprayed plat 
on a neighbor's place was considerably 7 injured by these insects, and up 
to July 1 no more had appeared on Mr. Orton's crop. He pronounced 
the treatment very effective. The work was done with a compressed- 
air machine or autospray. 
Mr. Edward A. Eames, Buffalo, X. Y.. writing of the value of 
arsenate of lead as a means of combating the common asparagus 
Note. — The accompanying Tart VII includes short notes on sonic of the 
insects which have been treated in earlier parts of this bulletin and notes en 
two insects not hitherto recorded as injurious in the United States. To the 
former class belong notes on the asparagus beetles and the asparagus miner. 
species considered more in detail in Tart I. pages 1-10. and notes on water- 
cress insects in addition to what has been published in Part II. pages n -Jo. 
To the second class belong notes on the injurious occurrence o\' the pea moth in 
the United States and a short account of a new western FOOt-maggOt — P. EL G. 
