THE BOLL WORM OF COTTON. 
DESTRUCTIVENESS. 
The damage to corn by the Boll Worm is difficult to estimate, owing 
to the nature of the attack. Its ravages in the “ bud” of the young 
plants and later in the ends of the ears taken collectively no doubt are 
considerable, though no definite per cent can be given. Tomatoes, 
eucumbers, and melons also suffer more or less seriously from its rav- 
ages. It is the attack upon cotton which is considered most serious 
and supposed to be of great proportions. To determine the amount of 
damage to cotton in the regions visited the past season the following 
studies were made. The first was made August 14, in a large field of 
upland cotton surrounded by woods. ‘Two rows were taken at random 
in the field; the first was rank high cotton, the second a smaller growth. 
About 10 feet of each row were marked off and all the bolls on the 
plants in each counted. (See Table I.) 
/ 
| 1 Loss 
{ | Loss by lag 
tow. | Good bolls.) ;, , by other | Total. | 
| Boll Worm. Rana | bea 
Lhe Be 290 | 2 95 | 389 | 
ly sclae 
| 
Maecocie. a5 270 1 43 
The next study was made September 16, in a small field of rank 
bottom-land cotton. The first five plants were taken at random, the 
next fifteen successively in one row. (See Table II). 
TABLE IT. 
Plant Good bolls Loss by wae Total 
a . | 8. ee | I J cul. 
Boll Worm. anaes 
We ate S hereto 40 a 5 52 
Demise sare iays 21 2 13 36 
SVG Sse 4 2 0 6 
es 30 3 26 53 
ie 34 10 34 78 
Giaccone 19 11 20 50 
Y hm eee al 18 2 0 20 
oi ae 8 35 9 15 59 
Sse cree 17 9 12 | 3 
WOES sees 70 6 9 85 
1p ee eee nse 33 1 1 41 
Nee ae 4 9 5d 
WSiewt cee 2 49 0 4 53 
1 F eee 3 0 0 i 
ieaeensee 10 0 0 10 
1G coe. 33 | 2 2 37 
Ips ee ae 25 , 11 38 
1 pepsin feel 2 24 98 
it eee tf 0 3 20 
PRS eeresee i 0 0 | i 
Total 579 78 182 829 
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