A Technıcal Study of Insects and Related Pests Attac Kıng Walnuts

by Mıchelbacher, A. E.
Published 1958

Hılgardıa, Effect of Bathyplectes Curculıonıs On The Alfalfa-Weevıl Populatıon In Lowland Mıddle Calıfornıa

by Mıchelbacher, A. E.

Some Natural Factors Lımıtıng The Abundance of The Alfalfa Butterfly

by Mıchelbacher, A. E.

The Present Status of The Alfalfa Weevıl In Calıfornıa

by Mıchelbacher, A.E.