90 Farmers’ Bulletin 1294. 
bulbs recorded. Worst affected gardens had 100 per cent of stalks 
infested. Estimated loss to commercial gardens 5 per cent of value 
of crop. 
ASTERS. 
China or garden asters were generally very heavily infested both in 
home and commercial gardens including both those grown ovtdoors 
and to a lesser extent those propagated in greenhouses. Borers tun- 
neled in main stems and flower stalks causing mutilation of plants 
in heavily infested plantings. Injury often prevented normal de- 
velopment of flowers. Estimated loss in heaviest infested fields 
ranged from 10 to 15 per 
cent of total value of crop. 
CHRYSANTHEMUMS. 
Infestation confined 
principally to plants 
grown under glass. Usu- 
ally léss than 1 per cent of 
plants injured, although, 
in a few cases noted, in- 
festation amounted to 16 
to 20 per cent. Injury to 
flower stem often  pre- 
vented proper develop- 
mentof blooms. Estimated 
loss in worst infested 
greenhouses amounted to 
2 per cent of total value of 
crop. (Fig. 16.) 
GLADIOLI. 
Infestation usually 
amounted to only a trace, 
except that im one case 
Fic. 15.—Green beans showing the work of Euro- £ 3 ‘ 4 
pean corn borer larve. where plants were grow- 
ing near other infested 
plants a maximum of 6 per cent infestation was recorded. Egg clus- 
ters found on leaves. Few borers present in flower stalks. Losses 
trivial. (Fis. 1) 
ZINNIAS. 
Frequently found infested in home gardens and small commercial 
gardens. Infestation varied from a trace to 10 per cent. Injury 
seldom interfered with normal development of flowers, except in 
a few cases. Losses in any instance did not exceed 1 per cent of 
value of crop. 
COSMOS AND HOLLYHOCKS. 
The stalks of cosmos and the flower stems anc leaf stems of holly- 
hocks occasionally found infested. No appreciable loss. 
