THE IMPOKTED CABBAGE WEBWOKM. 27 
The cabbage plat now appears to be unmolested by this larva, while nearly 
every turnip in the plat adjoining cabbage has one or more of the larvae some- 
where near the base of the stems or leaves* 
A few mature larvae were found at Brownsville, Tex., November 5, 
1910, boring in steins of mustard and crowns of young cabbage 
plants. Evidence of past injury was common and indicated that the 
larvae were more numerous in early October. Several cabbage grow- 
ers stated that worms, which from their description were evidently 
this species, caused considerable damage in seed beds. One grower 
lost fully 50 per cent of his plants^ which had the bud destroyed and 
were worthless for planting. 
Turnip, mdish, and mustard plants in the earlier stages were gen- 
erally attacked and stunted or caused to grow misshapen, and in 
some cases were entirely destroyed, the larvae boring down into the 
base of the crown and upward into the leaf stems after eating out the 
crown. Several larvae attacked a plant simultaneously. 
At a meeting of the truck growers on the Indiana Canal, 5 miles 
east of Brownsville, Tex., held November 28, 1910, nearly everyone 
reported more or less damage to seed beds of cabbage in October. 
Several had tried dusting with Paris green and lime, but evidently 
after the injury began to be noticed the larvae could not be reached in 
their burrows under the protection of the web. Very few sprayers 
were -in use among the farmers, who were mostly newcomers in this 
section. At Henry Keller's at least 25 per cent of his seed beds were 
ruined, and in small areas about 75 per cent had the bud eaten while 
the plants were small. More than 25 per cent of his young cauli- 
flowers set in the field were injured, and in many cases would not 
make perfect heads. There were a few small larvae found at this 
place and several adults were observed. 
Particulars in regard to earlier occurrences are given by the senior 
writer in the following bulletins of the Bureau of Entomology : No. 
19 (pp. 51-57), No. 23 (pp. 53-61), and No. 33 (pp. 18, 19)7 
DESCRIPTION AND LIFE-HISTORY NOTES. 
THE MOTH. 
The moth is illustrated at a of figure 1. It is gray in color, with 
the forewings marked and mottled, as shown. The wing expanse 
is about five-eighths of an inch (18 to 21 mm.). The following tech- 
nical description is copied from Dr. Hulst'S paper (1) : 
Palpi, head, thorax, and abdomen fuscous; forewings broken fuscous and 
fuscous cinereous; the basal space with a black spot medially, two white lines 
across the wings, the first extra basal edged with dark fuscous, the outer after 
the typical Botis pattern ; a dark-brown spot annulate with white at reniform ; 
a dark-brown subtriangular apical patch, and a subterminal white line ; marginal 
line black, broken ; hind wings, even fuscous ; beneath, lighter, lines obsolete, 
reniform indistinct. 
20639°— Bull. 109—12 2 
