Guide to the Study of Insects and a Treatise on those Injurious and Beneficial to Crops, Fachbücher von Alpheus Spring P...

Secont Report on the Injurious and other Insects of the State of New York, Fachbücher von J. A. Lintner

Selectivity of insecticides to beneficial insect, Fachbücher

Effects of Insect Resistant GM Crops on target and non-target insects, Fachbücher

A Treatise on Some of the Insects Injurious to Vegetation, Fachbücher von Charles Louis Flint, Thaddeus William Harris

Injurious Insects of the Farm and Garden, Fachbücher von Mary Lua Adelia Treat

Secont Report On The Injurious And Other Insects Of The State Of York

Injurious insects of the Orchard, Vineyard, Fachbücher von Matthew Cooke

Zoology for High Schools and Colleges, Fachbücher von Alpheus Spring Packard

Special report on Insects, Fungi and Weeds injurious to Farm Crops in Ireland, Fachbücher von R. Matheson

First and Second Treatise on the Decrease of Water in Springs, Creeks, and Rivers, Fachbücher von Gustav von Wex

A manual of injurious insects with methods of prevention and remedy for their attacks to food crops, Fachbücher von Elea...

A Treatise On The Insects Injurious To Fruit | Waldemar Goetrik Klee |

The Leopard Moth And Other Insects Injurious To Shade Trees In The

Insects, Injurious and Beneficial, Fachbücher von Matthew Cooke

Insect Pests Of Cole Crops And Their Management, Fachbücher