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germination test of 500 peas of ten sorts with the result that but one- 
fourth germinated, and the partial destruction of the cotyledons rendered 
the further growth of these doubtful. A check lot of the same number 
of sound peas gave a germination of 97 per cent. An examination of 
275 injured peas showed but 69 in which the germ was not wholly or 
partially destroyed. Moreover, Prof. Popenoe further states: 
In a field test of the growth of sound as compared with weeviled peas, the results 
were more decisive from a practical standpoint. In this test 23 varieties were rep- 
resented, each by 100 sound and 100 weeviled peas, taken as they came, without fur- 
ther selection. The seeds were planted in the garden in parallel rows, the sound and 
weeviled peas of each sort side by side, the rows 18 inches apart. The planting was 
done on the 5th of June, and the dryness of the season hindered the perfect germina- 
tion and growth to a noticeable degree. Of the sound peas 68 per cent came up, and 
64 per cent made strong plants. In 10 varieties of the weeviled peas no seeds ger- 
minated; the remaining 13 varieties were represented in all by 58 plants, or 4.4 per 
cent, in germination, of which but 49, or 3.8 per cent, grew to average size and 
strength. 
This evidence practically settles the long mooted question, and it is 
safe to say definitely that weeviled or “buggy” peas should not be 
planted. 
THE BEAN WEEVIL (Bruchus fabe Riley). 
This congeneric insect resembles the species we have just treated, in 
general appearance. It appears to be a native American insect, and 
probably fed originally upon some wild bean. 
It is said to have been first noticed upon 
cultivated beans about 1860 in Rhode Island, 
is now generally distributed throughout the 
United States, and has been carried by com- 
merce to different parts of the world. The 
adult beetle is shown at Fig. 42, and it will 
be noticed that the main points of difference pig. 4 Bean Weevil: a, adult; b 
are the absence of the white markings. The damaged bean—enlarged (after Rie 
general color is tawny gray with more or less “>” 
dull yellowish, and it is somewhat smaller than the Pea Weevil. In its 
life-history this species differs from Bruchus pisi in two important — 
points. Largely on account of its smaller size and the greater size of 
the seed which it infests, a number of individuals will develop in a 
single bean. AS many as 28 have thus been found feeding at once. 
A second point of difference, and one of great economic importance, 
is that the insects will continue breeding indefinitely in stored beans. 
We showed this to be the case in 1882, but recent writers have, for the 
most part, ignored this interesting fact. The eggs are primarily laid 
‘upon the bean pod in the field, and the larva enters the seed in the 
Same manner as does the Pea Weevil. The rate of growth is similar, 
and some individuals, as with the other species, may issue the same fall, 
others hibernating within the beans and issuing in the spring. If easy 
means of exit are not present, the females will soon begin to lay their 
