United States.: Bureau of Entomology

Subjects

Aleyrodidae., Agricultural pests, Alder blight., Alder--Diseases and pests, Aleyrodidae, Aphis, Argentine ant., Bean thrips--Life cycles. Bean thrips--Control., Bee culture--Queen rearing., Bees--Diseases., Boll weevil., Chinch-bugs., Citrus, Citrus whitefly--Control--Florida, Citrus--Diseases and pests--Florida, Cotton--Diseases and pests, Dendroctonus. Scolytidae., Diseases and pests Control, Diseases and pests., Diseases and pests.Insect pests Hawaii., Electric lines, Entomology Bibliography, European foulbrood, Forest insects., Grapes--Diseases and pests.