57 
cotton. For less infested regions 5 acres of trap crop for 75 or 100 
acres of cotton may suffice to insure the same protection. By a judi- 
cious arrangement of the trap crop and cotton lots fche five acres of t In- 
former may, in the same proportions as above given, be made to act 
as a protection for just twice the number of acres of cotton above desig 
nated. To illustrate this, the accompanying diagram | Plate i) for a 
plantation of 1,060 acres is presented, and is suggested as probably 
the best plan for placing the trap corn to the best advantage and in- 
suring the greatest immunity. 
On May 27, in company with Prof. Jerome McNeill, a trip was taken 
to Eustan and Calhoun about 00 miles east of Shreveport. This region 
is quite heavily wooded, mostly hilly and broken. Along the entire 
route, often passing beyond the Red Eiver Valley, the crops were at 
least three weeks behind those of the river bottoms. A similar differ- 
ence occurs in Texas. Southern Texas is about two or three weeks 
earlier in point of season than the northern portions. From this great 
extent of the cotton producing regions, and the variability of the con- 
ditions in different localities, it becomes advisable to waive all specific 
recommendations and depend upon the planter to determine the exact 
time during which the broods of moths to be feared deposit their eggs 
in his immediate locality and manage his trap crop accordingly. By 
way of emphasis and to avoid being misunderstood by farmers, it may 
be remarked that the time of appearance and egg deposition of the 
moths is the point in question, and not the w r orms. Should the farmer 
base his calculations on the latter, he will fail entirely, since the females 
will have issued a week or ten days previously and have laid their eggs 
upon some other host. 
The regular crop corn can be protected to a certain extent if care is 
taken to plant it as early as is expedient, calculating to have it beyond 
its prime in silking before June 10. If rows of corn near by are 
planted at a time to bring silking about July 1, the protection to the 
coin crop will be still more complete. For this reason late planted 
corn which silks about July 1 is much more eateu by Boll Worms than 
that planted earlier. 
It has already been intimated that the earliest appearances of Boll 
Worm injury are noticed in patches of early sweet corn in the numer- 
ous small gardens throughout the cotton country. These practically 
form a breeding ground for the first brood. The evident importance of 
hand picking and destroying the larvae in these patches is hardly to be 
overestimated. In fact, it may be quite as practicable to recommend 
thai these small patches be planted with the intention of destroying 
the corn as soon as an examination of the ears shall show them to be 
well stocked with worms and eggs. An early planting of sweet corn 
as a- trap crop in cotton w ill divide the attack upon the gardener's corn 
intended for the market and meet this source of complaint a* well. 
