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hessian flies
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The Hessian-fly and the Western wheat-stem saw-fly in Manitoba, Saskatchewan and Alberta
By Norman Criddle
Field experiments with oats, 1890
By Morrow, G. E.
The Hessian fly in California
The Hessian fly in California
By C. M. Packard
The serphoid and chalcidoid parasites of the hessian fly
The serphoid and chalcidoid parasites of the hessian fly
By Arthur Burton Gahan
Genetic analyses of ten sources of hessian fly resistance, their interrelationships and association with leaf rust reaction in wheat
Genetic analyses of ten sources of hessian fly resistance, their interrelationships and association with leaf rust reaction in wheat
By
Symptoms of wheat rosette compared with those produced by certain insects
By Harold Hall McKinney
The Hessian fly in the United States
By Osborn, Herbert
The Hessian fly situation in 1915
By F. M. Webster
An annotated bibliography of the hessian fly, phytophaga destructor (Say)
By J. S. Wade
The serphoid and chalcidoid parasites of the hessian fly
By A. B. Gahan
At a meeting of the committee appointed by the American Philosophical Society
At a meeting of the committee appointed by the American Philosophical Society
By American Philosophical Society.
The golden rules of agriculture
The golden rules of agriculture
By John Nicholas Mertz
Hessian fly in Washington
Hessian fly in Washington
By K. S. Pike
The Hessian fly in Oregon
The Hessian fly in Oregon
By L. P. Rockwood
The Hessian fly in Oregon
The Hessian fly in Oregon
By L. P. Rockwood
Study of Hessian fly, Mayetiola destructor (Say), biotypes and resistance in wheats in Morocco
Study of Hessian fly, Mayetiola destructor (Say), biotypes and resistance in wheats in Morocco
By Mustapha El Bouhssini
The Hessian fly in West Virginia and how to prevent losses from its ravages
The Hessian fly in West Virginia and how to prevent losses from its ravages
By Hopkins, A. D.
Keys to the parasites of the Hessian fly based on remains left in the host puparium
Keys to the parasites of the Hessian fly based on remains left in the host puparium
By C. C. Hill
Status and relative importance of the parasites of the Hessian fly in the Atlantic States
Status and relative importance of the parasites of the Hessian fly in the Atlantic States
By C. C. Hill
The Hessian fly, Cecidomyia destructor, in Great Britain in 1887
By
Parasites of the hessian fly in the North Central States
By C. C. Hill