-405- 
RSD SPIDER ( T'tran ychus tol^rius L. ) 
Washington ;.:. A. Yothcrs (August 1930): Unusually severe infestations 
of this mite in apple orchards in certain sections of tho 
ii matchoc iistrict. In certain orchards the trunks, branches, 
foliage, and fruit were covered with tho mites and their webbing. 
CEREAL A. II • D FORAGE ~ CROP INSECTS 
WH EAT AWD RYE 
HESS LAI FLY ( Phyto-ohaga destructor Say) 
Sew York Staff of Geneva Experiment Station (September 29): The 
Hessian fly is moderately abundant in Geneva. 
Illinois "..'. P. Flint (October 21): Tho, extremely dry summer has 
greatly reduced the infestation in this State ma except for 
a 'small area in southwest-central Illinois, there will apparently 
"o: little damage from the insect in the State this fall. Even 
in early-sown wheat infestation is vary light. 
Iowa .H. E. Jaqaos (October 25): Eel-las, Cass, Adair, "Tarren, and 
Van Buron Counties report moderate to heavy infestations. Some 
of the neighboring counties report their presence in smaller 
numbers. 
Nebraska M. H. Swcnk (September 1-Cctcber 15): In spite of tho fact 
that the extremely hot and dry month of July destroyed a large 
percentage of the puparia, there remained quite a heavy in- 
festation of viable puparia in the -'heat stubble, and, with 
the coming of August rains, the Hessian fly emerged abundantly 
and attacked the heavy growth of volunteer wheat that had 
sprung up. Most of this vol inteer growth has not been destroyed, 
and is now too large to destroy by disking. At the same time 
it is heavily laden with larvae ^.nd puparia which will form an 
extremely serious menace to the sown crop of wheat next spring, 
if not yet this fall through .. possible supplementary fall brcod 
the latter port of October. 
APPLE GRAIN APHID ( Rhou al o s i phum prunifoliae Pitch ) 
New York Staff of Geneva Experiment Station (October 20): Grain aphids 
are moderately abundant in Geneva* 
Nebraska M. H. Swenk (September 1-October 15): During the second week 
in October a ry<, field in northern Cass County was practically 
ruined by an abundance of the apple grain aphid. (October 20): 
The apple grain aphid is moderately abundant on rye in eastern 
Nebraska. 
