4 BULLETIN 1229, U. S. DEPARTMENT OF AGRICULTURE. 
whatever between the two hosts, in so far as occurrence of the dis- 
ease was concerned. 
At various places along the shore line between YValdport and 
Newport, Oreg., a distance of approximately 20 miles, the disease 
was found on both Fragaria and Hypochaeris, both of which grew 
in abundance. At times where the two plants were closely asso- 
ciated both were found affected, and again one or the other or both 
were free. In some spots either host growing by itself was affected 
and at other times free from infection. In fact, infested areas were, 
as a rule, in spots. The plants on one strip of considerable extent 
might be 50 per cent and even occasionally 100 per cent infested, 
while those on another strip a short distance away would be entirely 
free or possibly less than 1 per cent affected. 
At Newport a search was made for the disease in several small 
patches of cultivated strawberries within the town and in its suburbs. 
No diseased plants were found, however, in spite of the fact that 
Hypochaeris was found diseased quite frequently in strawberry 
patches. In one case a diseased plant of Hypochaeris was found in 
actual contact with the crown of a cultivated strawberry plant, 
which itself was not affected. 
Likewise, in Tillamook and vicinity plants of Hypochaeris were 
found affected. Cultivated strawberry fields were observed and ex- 
amined carefully, but not a trace of the disease was found. Wild- 
strawberry plants at this place, which is 5 miles from the coast, were 
examined but found free from infection. 
Along the Tillamook County beach the disease was found seatter- 
ingly on the w T ild strawberry, in some places 75 per cent of the plants 
being affected; in others, none or comparatively few. Hypochaeris 
was also quite frequently diseased, some areas one-fourth of a mile 
from the shore being found in which 75 per cent of the plants were 
affected. Such spots were rare, however. In fact, many areas were 
examined during the course of the surveys in which not a trace of 
the disease was to be found. Here, too, occasional beds of cultivated 
strawberries were observed and found to be free from the disease. 
In the vicinity of Seaside, Oreg., and thence northward it was 
observed that the stem nematode occurred on Hypochaeris, but was 
not to be found on Fragaria. Seaside is separated from the Tilla- 
mook Beach region, where the strawberry disease occurred abund- 
antly, by a natural barrier consisting of a high promontory which 
was heavily forested. For several miles this host does not grow. 
This natural barrier may be an explanation for the absence of the 
disease beyond. Between the Tillamook Beach and Seaside Hypo- 
chaeris was rather rare, but such plants as were observed wore free 
from the disease. Great open meadows in which both Hypochaeris 
and Fragaria chUoemis grew abundantly occurred near Gearhart. 
Many infested Hypochaeris plants were found here, but the Fragaria 
was always l'nv from the nematode. Along the edge of the golf 
links :\\ Gearhart a similar condition existed. Occasional diseased 
Hypochaeris plants were likewise found at the branch agricultural 
experiment station at Astoria, Oreg. Along the coast line north 
and south of Long lie;. eh. Wash., the disease was found in consider- 
able abundance on Hypochaeris, hut the wild sand strawberry w;i< 
entirelv free from infection. Not a trace of the disease could be 
