Oe hee 


























parts of mole crickets devoured in the feeding operations. § 
the specimens the muscles attached to parts of the body coveril 
well as internal organs, appeared to be normal in color such as is. 
in living specimens. Ordinarily these organs rapidly become da 
after death. The retention of this color, together with the volu 
mole-cricket parts taken from crops, indicates that the specimens 
not decaying bodies when eaten and lends additional support to the th 
of cannibalistic habits under natural conditions. The food stu 
are beginning to show * * * why the insects frequent the edges of streams 
ponds, ditches, and depressions where sediment is deposited as wate 
evaporates. Insects and other lower forms of animal life, both de 
and living, concentrate in such areas, giving a more adequate food SUPE 
as ikea as supplying necessary moisture for normal eid. ities Le 
without food, provided sagt a moisture reauihoneate are mainte 
The principal damage done by the mole cricket is that it burrows ne 
the surface of the soil in a manner similar to that of the ground mol 1631 
Ree 
eetle breeds readily in the 
Atiute ae ie passes 
field, but there is yet no evicen 

Tachinid parasite of Mexican bean 
nce 
of the parasite Fae dencueats er aie "from a collection of beetles: 
from 18 to 20. miles from the nearest point of liberation in 1932 but. 
very close to the point of liberation in 1931 near Moorestown, N. sg 
according to Neale F, Howard, in charge of the Columbus, Ohio, labora— 
tory. This "indicates either that the fly overwintered there, or th 
“ * * it spread at least 18 miles. A spread of 18 miles is consider 
quite possible in view of the fact that the fly spread and became abunda 
10 or 11 miles from the point of liberation at Columbus, during ‘195 
Results indicate that under favorable conditions liberations of a f 
hundred flies are sufficient to establish a large colony and that further 
liberations during the same season are not necessary. Most of the li _ 
erations during the 1932 season were successful and in some instance S 
the recovery approximated or exceeded 50 per cent of parasitized larv =} 
collected at random in the field." 
Soil dried out by alfalfa crop reduces wireworm po pulation.—— 
dies on the relation of moisture to the abundance and lee 
Ee) canus Lec. * * *.,"writes E, W. Jones, of Walla Walla, Was 
"indicate that the moisture factor at either of its extremes is very ¢ 
fective in reducing wireworm infestations. Wireworms die in dry s 
as the result of desiccation, Fine sandy loam and clay loam so 
planted to alfalfa dry out to approximately 20 per cent of their wat 
holding capacity during the growing season if not irrigated during =) 
Summer. This low soil-moisture content is obtained in the surface foot 
where the wireworm population is to be found. Consequently the winds 
worms are reduced in numbers. * * * one season of alfalfa, when not 
rigated in the summer, will reduce wireworm infestations about 74 
cent and still a good crop may be obtained." 
