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Fred D» Butcher (July lU): Chinch "bugs have been migrating 
from small grain for 10 days. They are more severe over a 
larger area than last year. Lee, Des Moines, Van Bur en, Henry, 
Davis, Wapello, and Lucas Counties report outbreaks. 
Missouri L, Haseman (June 27): Complaints regarding the heavy infestation 
of chinch "bugs throughout the State are received daily. I 
believe we will find that they are more abundant through the 
central counties and the northern counties of the State when 
the heaviest migration is on. Weather conditions in the past 
week have delayed migration practically two weeks. (July): Late 
spring delayed spring migration and breeding for about two 
weeks. Rains at wheat harvest (June 15-July 1) caused wild 
grasses to grow in stubble fields, which held up normal migration 
to corn. Bugs sifted over £or about three weeks. In central 
Missouri the heaviest movement occurred between July 1 and July 10, 
Calcium cyanid as a barrier gave excellent results. For 
the best results it is applied in the bottom of a furrow at the 
rate of 1 pound of flakes to from oO to 100 feet of furrow. The 
heaviest movement of bugs occurs during the afternoon and the 
cyanid is applied when the movement becomes heavy around the 
noon hour. One application will hold the bugs for the rest of 
the day if the wind is not too strong. Such a barrier is not 
too expensive to maintain. 
Since the bugs reached the corn we have dusted it with 
powdered calcium cyanid. This has caused some burning on the 
upper leaves of small corn and in the tassels, but not much on 
the lower blades or in the boots. With a knapsack duster it 
requires about 15 pounds of dust to do thorough work. When 
dust was used full strength it gave practically complete control. 
Very few that fall as dead ever recover. Some die so quickly 
they do not withdraw their beaks. The prolonged migration 
made it necessary to repeat the applications, and even after 
that a great many bugs are still present in the corn. 
South A. L. Ford and K. C. Sever in (July 13): The abundant rain 
Dakota this spring has held the bugs in check in most places. The 
rains were not general, and in those places where moisture 
is needed the bugs are doing much damage. Wheat and barley 
seem to be the only grains seriously affected. Corn which is 
adjacent to wheat and barley is suffering in places. At Geedes 
munh barley and wheat has been ruined and farmers are burning 
it to protect near-by corn. Many farmers are using dust 
barriers to protect corn with success. The heavily infested 
localities are small in area, hot being over more than 8 or 10 
townships at the outside. This infestation seems to have been 
working north at the rate of about 30 miles a year, for the past 
three seasons. 
Nebraska M. H. Swenk (June 15-July l): The situation concerning the 
chinch bug has not materially changed since June 15. 
