173 
following Tulasne, “perhaps varying the substratum and other con¬ 
ditions of environment might result in the development of the 
Cordyceps form in artificial cultures from the Isaria stage.” 
Bruner, Lawrence, and Barber, H. G.—Experiments with Infec¬ 
tious Diseases for combating the Chinch-bug. (Bull. Neb. 
Agr. Exper. Station, No. 34.) 
Brief account of measures taken in Nebraska for the propaga¬ 
tion and distribution of the white-fungus disease ( Sporotrichum 
globuliferum) by means of chinch-bugs dead with this disease ob¬ 
tained from the Kansas University Station. Methods practically 
the same as those followed by Prof. Snow, who is quoted at length 
on chinch-bug diseases due to S. globuliferum, Micrococcus insec - 
torum, and Empusa aphidis. Recent observations said to indicate 
that chinch-bugs are sometimes killed by another form of the 
Sporotrichum, in which none of the characteristic external fun¬ 
gous growths appear. List of one hundred and sixty-four farmers 
to whom diseased chinch-bugs were sent, about twenty-five per 
cent, of the sendings leading to successful experiments. 
Davis, G. C., and Wheeler, C. F.— [A Fungous Disease of the 
Larvae of the Clover-Leaf Weevil (Phytonomus punctatus.) 1 
(Bull. Mich. Agr. Exper. Station, Oct., 1894, No. 116, p. 50.) 
A letter from a Cass county (Michigan) farmer is given, in 
which he reports the occurrence of a very destructive fungous 
disease which periodically destroys this insect, and which in the 
spring of 1894 prevailed from Wisconsin to West Virginia. In 
the case here reported cattle feeding upon the clover were tempora¬ 
rily poisoned. The fungus causing the epidemic is Empusa [ En- 
tomophihora] sphcerospermci, known to infest the larvae of many 
other insects. Brief mention is made of the characteristic growth 
of the fungus and its effect upon the larvae of the clover-leaf 
weevil. 
Forbes, 8. A.—The Chinch-bug in Illinois, 1894.- (Press Bull. 
No. 16, June 9, 1894, Ill. Agr. Exper. Station.) 
Offers cultivated Sporotrichum to farmers for experimental dis¬ 
tribution in infested fields. Results of this method insufficient to 
warrant entire dependence upon it. Should be made only one 
feature of a general campaign. 
Garman, H. — Observations on Farm Pests. (Third Ann. Rep. Ky. 
Agr. Exper. Station, p. 9.) 
On p. 25 notes an epidemic disease of the grain louse ( Siphonopli- 
ora avence) caused by a species of Empusa (E. planchoniana ), 
and mentions two other species of the same genus—one probably 
new to science which he has observed attacking plant-lice indoors. 
Symptoms and post-mortem condition of the infested grain lice 
briefly indicated. Wet weather or damp situations said to greatly 
favor the development of parasitic fungi. 
