60 
PLAXT QUARANTINE AND CONTROL ADMINISTRATION [April-June, 
at present assigned to direct scale-extermination work. The limited surveys 
still under way have resulted in the addition since January 1, 1929, of 325 
palms in the Imperial Valley and 8,305 in the Salt River Valley to the total of 
52,785 palms recorded and mapped in these vallevs during the last six months 
of 1928. (See S. R. A. 97, p. 97.) 
The virtual completion of the reconnaissance work and the fact that many 
of the recently appointed inspectors now have enough experience so that they 
are able to work independently, have made possible an enlargement of the 
intensive palm-inspection program. A total of 169,973 palms were thus ex- 
amined during the first six months of 1929 as compared with 70,630 during the 
previous half year. Nevertheless, only 362 infested palms were found as 
compared with 1,228 for the last half of 1928. The difference is largely in the 
Imperial Valley of California where a number of heavily infested properties 
were discovered in the fall of 1928 and the palms destroyed, or pruned and 
torched. 
An important factor in the improved conditions has been the adoption of 
the policy of destroying abandoned and uncared-for palm plantings by pulling 
out the palms with tractors or having laborers dig them out. A total of 
16,987 palms were so destroyed during the. 6-month period, consisting in the 
main of slightly infested seedling gardens without commercial value. 
The outline of field activities given in Table 11 indicates the progress in 
the scale-extermination operations. It will be noted that in the Coachella 
Valley, 218 palms were found infested. Over half (120) of this number were on 
one property, newly found infested in April, and almost all the palms in that 
garden were destroyed. 
Table 11. — Palm inspections, date-scale-eradication project. January 1 to June 
SO, 1929 
Arizona 
California 
Item 
Phoenix Yuma 
district district 
Coachella 
district 
Imperial 
Valley 
i 
15, 198 1 6, 935 
10 I 
32 1 
8,305 !-. 
144, 540 
121 
218 
13,300 
Infested properties found . . 
57 
Infested palms found and treated or destroyed .. 
112 
325 
'"Of the 21 properties on which infested palms were determined in the Coachella district during the 
6-month period, 7 were reported as new infestations. 
WHITE-PINE BLISTER-RUST QUARANTINE ENFORCEMENT 
PINE SHIPPING PERMITS 
Under the revision of the white-pine blister-rust quarantine regulations which 
became effective August 15, 192S, provision was made for shipping 5-leaf pines 
from New England or New York or Washington State into certain other infected 
States when the trees are grown from seed under specified sanitation conditions 
for protection from the blister rust. One New England applicant for such a 
permit was found to be growing pines under those conditions during the past 
six months and a permit was issued to his nursery. 
NEW STATE LEGISLATION 
The State of Michigan declared the cultivated black currant a public nui- 
sance, under public act No. 313 approved by the governor on May 24, 1929. 
This act also authorizes the commissioner of agriculture to set aside certain 
areas for growing white pine, and other areas for the culture of currants and 
gooseberries. Minnesota has also enacted new legislation under which the 
commissioner of forestry and fire prevention is authorized to designate blister- 
ruxt-control areas within that State. 
TRANSIT INSPECTION 
The inspection of nursery stock in transit resulted in the interception of 138 
violations of the white-pine blister-rust quarantine during the 6-month period 
