Add to ORKGThe following notes are extracted from Bulletin 32 of the Iowa Experiment Station, and embrace such portions of work upon certain injurious insects as have a biologic interest. We are indebted to the Experiment Station for the use of the figures
The orthoptera are among the most important of the injurious insects of this State, almost all of th...
Notes on Cucurbita moschata, Duch. A.T. Erwin pages 213-222 Four New Thysanoptera, With a Preliminar...
The Parasites of Some Lepidopterous Stalk Borers in Iowa. George C. Decker pages 567-580 Eimeria bec...
The following notes are extracted from Bulletin 32 of the Iowa Experiment Station, and embrace such ...
Considerably more than one half of all the known species of living things are insects. These make vi...
At its meeting a year ago the Academy authorized a small research grant to help with what we have ch...
At its meeting a year ago the Academy authorized a small research grant to help with what we have ch...
Considerably more than one half of all the known species of living things are insects. These make vi...
Aside from the interest attaching to this family of the Homoptera as a remarkably specialized group ...
White grubs have been doing serious damage in Iowa every third year for about three decades. In 1921...
This list is prepared from the material in the collections of the Iowa Agricultural College and the ...
The insects described in this bulletin are at present very common in Iowa and inquiries are being so...
The members of the order Coleoptera can be distinguished readily from all other insects, except the ...
This list is prepared from the material in the collections of the Iowa Agricultural College and the ...
The members of the order Coleoptera can be distinguished readily from all other insects, except the ...
The orthoptera are among the most important of the injurious insects of this State, almost all of th...
Notes on Cucurbita moschata, Duch. A.T. Erwin pages 213-222 Four New Thysanoptera, With a Preliminar...
The Parasites of Some Lepidopterous Stalk Borers in Iowa. George C. Decker pages 567-580 Eimeria bec...
The following notes are extracted from Bulletin 32 of the Iowa Experiment Station, and embrace such ...
Considerably more than one half of all the known species of living things are insects. These make vi...
At its meeting a year ago the Academy authorized a small research grant to help with what we have ch...
At its meeting a year ago the Academy authorized a small research grant to help with what we have ch...
Considerably more than one half of all the known species of living things are insects. These make vi...
Aside from the interest attaching to this family of the Homoptera as a remarkably specialized group ...
White grubs have been doing serious damage in Iowa every third year for about three decades. In 1921...
This list is prepared from the material in the collections of the Iowa Agricultural College and the ...
The insects described in this bulletin are at present very common in Iowa and inquiries are being so...
The members of the order Coleoptera can be distinguished readily from all other insects, except the ...
This list is prepared from the material in the collections of the Iowa Agricultural College and the ...
The members of the order Coleoptera can be distinguished readily from all other insects, except the ...
The orthoptera are among the most important of the injurious insects of this State, almost all of th...
Notes on Cucurbita moschata, Duch. A.T. Erwin pages 213-222 Four New Thysanoptera, With a Preliminar...
The Parasites of Some Lepidopterous Stalk Borers in Iowa. George C. Decker pages 567-580 Eimeria bec...