-5= 
The most encouraging thing in sight at the present time is the 
utilization of cultural methods for the purpose of reducing the infesta— 
tion to the point where one thorough early application of lead arsenate 
__..(which does not result in excessive residue) will give satisfactory con- 
Mm trol. 

As indicated in last month's News Letter, a light covering of 
earth over the, cocoons will prevent the emergence of moths. This has 
been pointed out several times by earlier investigators, but little use 
has been made of this in a practical way, and the cultural methods fol- 
lowed by most of the growers have tended to favor the berry moth instead 
of reducing its numbers. Mr. Runner has taken several vineyards which 
were previously heavily infested and changed the cultural practices so 
that the cocoons were buried during the emergence period of the moths, 
with the result of securing a very satisfactory degree of control with 
only one or at most two very early applications of poison. Near—by vine- 
yards under normal cultural treatment have been much more severely in- 
fested. The method will be given further and more elaborate demonstra-— 
tion. 
seats Ges Sto Ls ee ws coe ee Se ee a ST de oe a 
JAPANESE BEETLE AND ASIATIC BEETLE RESEARCH 
Reporting on the life history and habits of the Japanese beetle 
(Popillia japonica Newm.), I. M. Hawley, Moorestown, N. J., says that 
"adult beetles decreased quite rapidly shortly after the beginning of 
August, and * * * during the same month they very largely deserted the 
various forms of trees, vines, and shrubbery upon which they feed during 
the height of the season and become largely limited to smartweed (Polygo— 
num) on which they continued to be found in fair numbers as late as the 
end of the month. Daily examinations of the soil for stages of the Japa-— 
nese beetle in a set of eight stations * * * showed eggs quite scarce 
after August 15" and second-instar larvae predominating over the other 
stages. 
—_ "The approximate percentage of the stages" of the Asiatic bee- 
tle (Anomala orientalis Waterh.) "to be found in the field at the end of 
the month (August)," according to Mr. Hawley, "is as follows: eggs 5 per 
cent, first-instar grubs 17 per cent, second-instar grubs 72 per cent, 
and third—instar grubs 6 per cent. The range of abundance of the grubs 
in field varies from 0 to 83 grubs per square foot." 
On the life history of the Asiatic garden beetle (Aserica cas- 
tanea Arrow), Mr. Hawley says: "eggs 14 per cent, first-instar grubs 53 
per cent, second—instar grubs 17 per cent, third-instar grubs 1 per cent, 
and adults 15 per cent. The range of the abundance of the grubs in the 
field varied from 0 to 117 per square foot. * * * The following plants 
have shown 50 per cent or more defoliation: Asters, barberry hedge 
(young foliage), beggar-ticks, butterfly bush, Carolina poplar, carrot, 
chrysanthemum, cherry, dahlia, delphinium, English ivy (young twigs), 
goldenrod, pear, phlox, tree-of-heaven, and viburnum. Asters showed 
- heavy defoliation more often than any other plant." 
