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Author:
Luginbill, Philip , 1884- , Beyer, A. H. (Adolph Harvey) , 1882-
Subject:
life cycle (organisms) , Helicoverpa zea , Vicia , natural enemies , Winthemia , parasitoids , biological control agents , control methods , biological control , Heliothis zea Control , Vetch Diseases and pests
Physical description:
19 p. : ill. ; 23 cm.
Additional Author(s):
Luginbill, Philip , 1884-Beyer, A. H. (Adolph Harvey) , 1882-
Collection:
Organic Roots Collection
Series:
Farmers' bulletin
Author:
Chittenden, F. H. (Frank Hurlbut) , 1858-1929
Subject:
life cycle (organisms) , cole crops , insect pests , larvae , cultural control , spraying , arsenicals , poisoning of animal pests , baits , trapping , natural enemies , biological control agents , Pieris rapae , trap crops , Cabbage Diseases and pests
Physical description:
16 p. : ill., 1 map ; 23 cm.
Additional Author(s):
Chittenden, F. H. (Frank Hurlbut) , 1858-1929
Collection:
Organic Roots Collection
Series:
Farmers' bulletin