-32-' 
For fumigation of strawberry plants in shipping crates of field- 
packed "baskets, 3 pounds should be used per 1,000 cubic feet for 
4 hours at a temperature of at least 60° F. For the treatment 
of fruits and vegetables in refrigerator cars, 2 pounds per 1,000 
cubic feet (5 pounds per car) should be used for 2 hours at a 
temperature of at least 70° F, 
B.E.P.Q. 499, Sup. 1, 1 p. 1939. 
(127) 
The instructions in B.E.P.Q, 499 are modified to state that 
the method is to be applied only to plants with bare roots or in 
12-inch pots or smaller, or in soil balls not larger than 12 
inches in diameter or thicker than 12 inches when not spherical. 
The soil should not be puddled or saturated, and the balls should 
not be jammed tightly together. 
(128) 
B.E.P.Q. 499, Sup. 1, rev., 2 pp. 1940. 
The minimum temperatures ' in the dosage schedule provided in 
B.E.P.Q. 499 for fumigation of plants with or without soil are 
changed to the following: 63° F„ for an exposure of 2 l/2 hours - , 
54° F. for 4 hours, and 50° for 4 l/2 hours. 
(129) 
B.E.P.Q. 499, Sup. 1, rev. 2, 2 pp. 1940. 
An approved fumigation chamber equipped with vaporizing, air- 
circulating, and ventilating systems must be provided. The air 
within the chamber must be kept in circulation during the fumiga- 
tion. At the completion of the treatment, the chamber must be well 
ventilated before it is entered and the plants are removed. The 
temperature of soil and air for each type of treatment must remain 
throughout the period of treatment at least that specified as 
follows: For dosage of 2 pounds per 1,000 cubic feet, 70° F. for 
2 1/2 hours; for 2 l/2 pounds per 1,000 cubic feet, 63° for 2 l/2 
hours, 54° for 4 hours, and 50° for 4 l/2 hours. 
(130) 
B.E.P.Q. 499, Sup. 2, 2 pp. 1940. 
The following dosages are specified for fumigation of refrig- 
erator cars: 1.6 pounds per 1,000 cubic feet (4 pounds per car) at 
a temperature of at least 80° F. , or 2 pounds per 1,000 cubic feet 
(5 pounds por car) at a temperature of at least 70° F. 
(131) 
Administrative instructions modifying the restrictions of tho 
white-fringed beetle quarantine by .authorizing treatment by 
methyl bromide solution of balled nursery stock not larger than 
six (6) inches in thickness (or of spocifiod thickness) (Sec. 
301.72-5c). U. S. Dept. Agr.T.E.P.Q. 503, 2 pp. 1939. 
Tho soil balls must be buried in sand and plunged in boxes or 
trays approximately 1 foot deep, which are watertight. A 2-inch. 
MM 
