55 
In another of Mr. Ziegler's fields corn was planted May 19. July 28 this was in 
line silk. By actual count the silk of a single car was found to" Lave twenty-five 
nnhatched boll- worm eggs. Most of the silks had only about a dozen eggs, with 
from three to six larvae in the ears. 
Late in .July notice was received from Mr. John Glassell, jr., a Leading planter at 
Rush Point, La., who had read the recommendations given by the Division upon the 
boll-worm question] and had prepared to test the suggestion. By his invitation the 
plantation was visited July 25, and a complete verification of our own experiments 
proved to he in waiting. Mr. Glassell had planted corn at the time of the second 
hoeing, when the cotton was ahout knee-high, or, as he informed me, about May 20. 
At the time of the visit the third hroodof moths was fairly issuing. The trap corn 
was in fine silk, and the record of a few of the many ears examined will suffice to 
indicate what they were accomplishing. One ear, 11 larvae, 7 eggs on silks; another 
ear, 6 larva?, 10 eggs on silks. The closest inspection of the cotton plants surround- 
ing this corn failed to reveal any traces of boll- worm injury. Various fields of corn 
near hy were examined hut no holl-worm eggs were found. The fresh silking corn 
was nearly in the center of a number of these fields and seemed to he receiving 
almost the entire egg deposition of the issuing brood in that immediate locality. 
Mr. Glassell enthusiastically accompanied your agent during all the observations, 
with a view of thoroughly informing himself of the facts and enabling himself to 
estimate the value of this method of protecting cotton. Subsequently he continued 
to make close observations and reported himself as being well satisfie-d with the 
remedy. In this connection it may also be stated that much valuable corroborative 
evidence was obtained from Mr. S. B. Mullen, of Harrisville, Miss., who had been 
advised of the trap-corn experiments. He arranged several small fields to make a 
test of the idea, and all of his reports by letter arc in entire accord with what has 
already been stated. 
The plantations thus far considered were bottom lands. The cotton in and about 
trap-planted fields was practically free from boll-worm injury. This could in a 
measure be said of other cotton fields in the valley, because the Boll Worm did not 
appear in destructive numbers during the season. This in reality does not affect 
the facts recorded for the corn experiments, and their significance relative to the 
moths which did appear remains the same. 
In the " hill country " of Louisiana and portions of Mississippi away from the river 
valleys, the Boll Worm is not noticed or feared much except during very destruc- 
tive years, when it spreads from the bottom lands. 
A small farm in the uplands west of Shreveport was prepared for experiment in 
much the same way as those in the valley. Corn was planted May 16. By dune 16 
it was knee-high, but no worms were found. July 9 corn was tasseling and be- 
ginning to silk, but as no moths appeared in this locality, no eggs were found. To 
trap the first brood requires corn in silk from about May 15 to June 1. This is too 
early a date to be reached by the yellow or Dent corns. In its stead a sweet corn. 
commonly planted in the south for table use, meets the requirements. This corn 
had passed silking and was in good roasting ears before the first of June. Some of 
the studies made upon it are exhibited in Table II. which shows how badly if was 
and had been attacked. At the time of the count many nnhatched eggs were still 
to be fouud upon the silks. Care must be taken, however, not to estimate the 
abundance of the Boll Worm and the extent of its injuries from such examples. 
The Dent corns also make an unsatisfactory growth when planted late enough to 
bring silking about the first of August. In its stead the sweet corn again meets the 
conditions. 
The plan, therefore, to be recommended to the planter tor using the 
trap corn method of protecting his cotton against boll worm injury may 
be summed up as follows : When planting the cotton have vacant snips 
