38 ANNUAL REPORTS OF 
was mediocre, owing to their Inability to distinguish between symptoms of the 
and oilier physiological factors thai induce wilting. As the Beason 
many of the men became more proficient in detecting the dis 
Late Id the season a waiver of the 90-percen! relief requirements on 500 men 
ssible to reemploy for a short time some of the Bcouts that bad 
Laid hi the preceding May and to hire qualified uonrelief men for scouting in the 
outside areas. At the conclusion of foliage scouting the force was reduced t«» 
approximate]y«2,100, and the men retained were transferred to eradication and 
saniiaiii.n work. 
Owing to the delay in starting the summer scouting and the inexperience of 
the scouts, it proved Impossible to complete the three surveys of the entire work 
area a- originally planned. However, there was one complete covering of the 
infected zone, approximately two-thirds of tin infected territorj 
covered twice, and a few sections received three Burveys. Scouting of the pro- 
tective band was limited to a single systematic survey of about <^» percent of the 
area and a reMirvey of 20 percent of the territory. 
s outing in outlying cities where diseased trees had been found in previous 
year- was -tarted about July i~>. When additional funds later became available, 
scouts were assigned to the cities exposed to infection when imported hurl elm 
Logs were Landed in this country and transported to veneer factories. A maxi- 
mum of 1"4 relief workers were used in the outside scouting activities in Balti- 
more, Cincinnati, Cleveland. Indianapolis, Norfolk. New Orleans, Knoxville, 
Louisville, Kansas City. Chicago, Dayton, Philadelphia, and Boston. 
Scouting of railroad rights-of-way over which imported hurl elm logs traveled 
en route io veneer factories in the Middle West disclosed a new spot of infection 
containing three diseased trees about 50 miles west of Baltimore near the Balti- 
more cV ohio Railroad transfer center at Brunswick, Md. A sample plot of dead 
and dying elms established during the fall in the infected section of Cleveland 
also disclosed 2.". diseased trees. Residual infections were also found in i<> trees 
in Indianapolis and 3 elms in Norfolk. Infected trees found in these three dties 
were in the same general vicinity in which diseased trees had been removed 
in 1934. 
ral staff members made a number of trial flights in both an autof 
and an airplane late in the summer of 1985 t" determine the possibilities 
using aircraft in spotting concentrations of the disease and in locating dead 
and dying elms that might harbor Infection or furnish breeding places 
insecl carriers. These observations indicate.! that by virtue of its Blow flight 
and maneuverability an autogiro coidd be used to advantage in aerial scouting 
over rough terrain not easily reached i>> -cents afoot. After considerable 
search to find a suitable plane, delivery was accepted on March it of a two- 
seated PA 18, 1983 autogiro. During part of April the autogiro was utilized 
citrus canker survey of marshland areas along the c.ulf coast of Louisiana 
and Texas. Systematic autogiro scouting with a pilot and observer began 
in the oorthwestern counties of New Jersey on June in. Aerial photographic 
maps of the territory flown were used for orientation and location of wilted 
tree, showing apparent characteristics of the Dutch elm disease. After re- 
ceiving the marked maps, ground crew- relocated the trees and cut samples 
for laboratory culturing. No difficult} whatever was experienced by the ground 
crews in Locating tree- spotted by the aerial BCOUt and marked on the air 
it has been estimated that it requires a ground crew of eight men 
ting for 30 days to cover territory that may he scouted in a single day 
from the autogiro. During June 'he aerial .few spotted 115 wilted elms 
,1,1^ total, three elm- were subsequently confirmed a- infected with the disease. 
Wilting and discoloration characteristic of the Dutch elm disease in 1986 
were first found on Ma.\ 22. General wilting of elm foliage was observed dur- 
the first week in June, 
s,-,,,,t schools were Inaugurated shortly after the middle "t Maj for the 
training o1 Bcouts for the pec, season. Most ^\ Hie men assigned to the schools 
wo re those with previous scouting experience or members of sanitation • 
w ho had proved their adaptability to this type of work, en June 8 the trainees 
inlzed into crews and placed in the field. Bj the end there 
_'H five-man scout crews in the field. This number of Works Pi 
nitration crews was supplemented bj i<"> crews composed of civilian 
Corps enroll,-,-. Me, on the W. r a. pay roil at the end 
vear numbered B83. The remainder of the personnel was composed oi 92 
appointees, 229 per diem workers on regular funds, 19 State-appointed per- 
sonnel, 219 State per diem worker-, and S10 C. C. C. enrollces. 
