HC Deb 28 July 1938 vol 338 c3332W
Mr. De Chair

asked the Minister of Agriculture whether any effective protection has been devised against the contamination of crops by spraying from the air in war time?

Mr. W. S. Morrison

I do not think it would be practicable to protect growing crops against the possibility of contamination by spraying from the air, but I am advised that it would not be difficult to check the spread of contamination.