UBRARY ^ 
STATE. PLANT BOA 
/ 
REPORT OF THE ACTING CHIEF OF THE BUREAU OF 
PLANT QUARANTINE, 1934 
United States Department of Agriculture, 
Bureau of Plant Quarantine, 
Washington, D. C, August 28, 1934. 
Sir: I transmit herewith a report of the work of the Bureau of 
Plant Quarantine for the fiscal year ended June 30, 1934. 
Respectfully, 
Avery S. Hoyt, Acting Chief. 
Hon. Henry A. Wallace, 
Secretary of Agriculture. 
INTRODUCTION 
Work of the past year has been notable primarily for progress in the suppression 
or eradication of known outbreaks rather than in the finding of new or startling 
developments. The discovery of a considerable infestation of the Japanese 
beetle in St. Louis constitutes the only major finding of a well-known serious pest 
in a new section of the country. 
The eradication of the Pennsylvania outbreak of the gypsy moth was stimu- 
lated and intensified as a result of the allotment of funds from the Public Works 
Administration and other emergency organizations of the Government. This 
infestation has proved to be large and thoroughly established, and almost half 
of the egg clusters destroyed in the Department's gypsy moth campaign during 
the year were found in that State. Similar allotments of emergency funds also 
made it possible to extend the suppressive activities in western New England 
eastward from the barrier zone into the Connecticut River Valley to aid in the 
elimination of infestations in that region which were threatening to spread west- 
ward to localities outside the present known infested sections. 
Because of the overlapping of the areas infested by Japanese beetle and gypsy 
moth, it was found advisable in the interests of economy to merge the enforce- 
ment work on the two quarantines. With the spread of the Japanese beetle 
in the New England States and the extension of the quarantine in that area, the 
Bureau was in the position of having two sets of inspectors in the same area 
while the work of inspection and certification of products could be handled by 
one unit. The enforcement of the satin moth quarantine which is operative in 
the same territory was also combined with the other two quarantines. 
Progress is reported in connection with the pink bollworm outbreak on wild 
cotton in southern Florida. A new infestation consisting of the finding of two 
infested fields in Georgia necessitated some additions to the regulated area but 
is not believed to threaten the success of the eradication effort in that part of 
the United States. Through the cooperation of the Agricultural Adjustment 
Administration it was possible to establish a cotton-free zone surrounding the 
infested premises for 1 year and this additional safeguard, it is believed, will 
constitute an important aid in the extermination of the pink bollworm from the 
southeastern part of the United States. 
Among the new and improved methods described in this report may be men- 
tioned the use of glass flytraps for determining the status of citrus groves as to 
Mexican fruit fly infestation in the lower Rio Grande Valley, and a number of 
improvements in methods of treating cotton for the pink bollworm, and in 
spraying equipment used in the gypsy moth project. 
The work of the port-inspection service, which is maintained for the protection 
of the agriculture and horticulture of the United States from injurious foreign 
insects and plant diseases, resulted in 25,305 interceptions of insects and plant 
diseases. Those which it was possible to determine definitely were found to 
belong to 1,277 different species of insects, 166 different species of fungi and 
bacteria, and 14 species of nematodes. In making these interceptions, the 
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