Farm spies; how the boys investigated field crop insects

में बचाया:
ग्रंथसूची विवरण
OCLC:15562962
मुख्य लेखक: Conradi, Albert F. (Albert Frederick), 1877-
अन्य लेखक: Thomas, William Andrew, 1883-
भाषा:English
प्रकाशित: New York, The Macmillan Company, 1916.
विषय:
Beneficial insects > Textbooks.
Insect pests > Textbooks.
Agricultural pests > Textbooks.
Agriculture > Textbooks.
स्वरूप:

Monograph

Note that CRL will digitize material from the collection when copyright allows.

विषय - सूची:
  • The boll-weevil
  • The black bill-bug of corn
  • When corn is fox-eared
  • The black corn-weevil
  • Grasshoppers
  • Chinch-bugs
  • The cotton root-louse
  • Windfalls of corn.

समान संसाधन