October, ’24] 
LARSON: WEEVILY SEED BEANS 
541 
The difference in the size of the plants was most marked about the time 
the blossoms began to appear. There was not a perfect stand of the 
latter, and some died before producing beans. None of the beans 
having 11 or 12 holes came up, and only a few of those having 4 or 5 
holes came up. These were small weaklings, having a struggle to exist 
and finally succumbed to the attack of red spider without producing 
beans. 
In 1922 plantings of weevily beans were made as indicated in Table 2. 
Where possible, lots of 100 beans, free from weevil infestation, containing 
living weevils, dead weevils, and emergence holes from 1 to 10 or more 
were planted. With some varieties of beans, when it was impossible to 
get the desired number, a smaller number was used. There were no 
emergence holes in the beans containing either living or dead weevils. 
In some instances it was later found that all beans in these two groups did 
not contain weevils, as they were thought to. The tiny larvae had died 
immediately after making their minute entrance holes through the seed 
coats. It was impossible to tell before planting how many dead weevils 
were inside of the beans in any infested lot containing either dead weevils 
or emergence holes. Likewise it was impossible to determine before 
planting how many living weevils were within each seed in the lots con¬ 
taining living weevils; but by dissecting beans from each lot which was 
taken it was possible to determine the approximate size of the weevils in 
each lot. 
All lots were planted the same way and at approximately the same 
depth in the open spaces in an orange orchard. The moisture condition 
was quite nearly uniform for all that were planted on the same date. 
The climatic conditions during the period immediately following the 
planting may not have been all that could have been desired, as the sky 
was cloudy almost constantly, with the exception of three hot days as is 
shown in Table 1. The humidity was high, but the temperature appears 
to have been high enough to insure a rapid development of young bean 
plants. 
Table 2 shows a great difference in the number of plants that came up 
from different varieties, as well as from different lots of beans. It 
also shows that a greater percentage of the clean beans or those being free 
from weevil attack, came up and grew, than of the others. More plants 
came from beans containing living weevils than from beans containing 
dead weevils. This may be partly accounted for by the fact that a few 
more beans were later found to be free from weevils in this group than in 
the other. A few young bean plants were killed by cutworms and other 
