Pest insects infesting brassica crops /
Collier, Rosemaryauthor.
Great Britain.Agriculture and Horticulture Development Board.
AHDB Horticulture (Great Britain),publisher.
Caption title.
"Field vegetables."
"AHDB Horticulture is a part of the Agriculture and Horticulture Development Board (AHDB)"--Back cover.
Includes additional sheet and table in back pocket.