13 
Scales on the Oleander.—Leaves infested with Aspidiotus nerii received. 
Soap-suds made as strong as the plant will bear may kill them if applied 
when the eggs have recently hatched. 
Locust or Periodical Cicada. (Prairie Farmer, April 29, 1871, v. 42, p.-.) 
I)r. Tefft, of Elgin. Ill., writes of the appearance of the locust in that 
vicinity in 1837 and in 18.74. and says if they come in 17 years again we 
•should expect them this season. 
The regular return of this insect in the same locality every seventeen 
y T ears, indicates that it requires this term of years to mature. Different 
broods have their own localities. They begin to emerge about the last 
week of May, and disappear by the first week in July. They place their eggs 
in twigs of almost any kind of tree, preferably in oak. These hatch about 
the end of July, and the young drop to the ground and burrow into it. 
The imagos damage the twigs, often quite seriously, usually, though not 
always, killing them. They appear so suddenly and profusely that all 
attempts to check them have failed. Extent of territory covered by the 
brood of 1871 imperfectly determined, but included part of yorthern Illinois, 
Southern Wisconsin and Michigan, and Eastern Iowa. 
□ Entomologist's Report.—Riley's Third Missouri Report, reviewed. Addi¬ 
tional investigations of most injurious species commended. 
Topics of Interest for the Coming Season : Chinch Bugs , Potato Beetles , and 
Codling Moths. (Prairie Farmer, May 6, 1871, v. 42, p.-.) 
Reports on prevalence and local history of noxious insects solicited. 
[For abstract concerning chinch bug. see 16tli Rep. State Ent. Ill., Ap¬ 
pendix. p. 35.] 
Potato Beetles.—Colorado potato beetles are turned up by the plow in 
many localities. Recently reported as being found six feet under ground. 
Codling Moth.—It is a disputed and practical question whether this in¬ 
sect is attracted to light in the evening. Asks that collections of insects 
so attracted be made and sent him. 
Bark Louse of the Pear. — Apple-Tu'ig Borer.—Potato Bugs and Paris Green. 
(Prairie Farmer, May 20, 1871, v. 42, p. -.) 
Bark louse of the pear received in twigs from Southern Illinois. Un¬ 
der each scale there are from three hundred to five hundred eggs. The 
species not known to do serious harm. Eggs hatch about the first of 
July. 
Apple twig borer, Bostrichus bicaudatus, from Panora. Iowa. Beetles 
bore into and feed upon the pith. Infested twigs should be cut off and 
burned. 
From the numbers of the Colorado Potato Beetle plowed up, a general 
outbreak is feared. Brushing off and destroying them is tedious and 
scarcely practicable in field culture. Paris green is expeditious and effec¬ 
tive, and may be successfully used when diluted with twenty parts flour 
and ashes. The more it can be- diluted and retain its efficacy the better. 
No case of death from its use yet recorded. Rules for using it recom¬ 
mended. 
The Effects of Clean Culture in preventing the Parages of Noxious Insects .— 
Cankerworms , Codling Moths, and Apple and Peach Borers. (Prairie 
Farmer, May 27, 1871, v. 42. p. -.) 
Clean culture an indispensable condition in the raising of sound and 
abundant fruit. Removing and burning dead bark and rubbish destroys 
the shelter where the cankerworm deposits her eggs. This should be 
done during the first two or three weeks of April in the northern part of 
the State. The codling moth pupates beneath the scales and is exposed 
to its foes by their removal. Clean culture deprives those which fall to 
the ground of their customary shelter. Borers of apple and peach 
