. Some common insects and insects of Nebraska corn fields and potato patches... RAGWEEDS(Genus-Ambrosia) The two ragweeds commonly seen in this country are the smaller andgreater ragweeds. These pests are both annuals. Both are found alongroadsides, low ground and waste places, but the smaller ragweed is verycommon in cornfields. The greater ragweed grows from four to eight feethigh but the smaller species seldom attain a height to exceed four feet. Thestems of both kinds are very rough and the leaves divided. The flowers arepale green in color and curing a certain stage in their development w
Image details
Contributor:
The Reading Room / Alamy Stock PhotoImage ID:
2AG3M9FFile size:
7.1 MB (227.6 KB Compressed download)Releases:
Model - no | Property - noDo I need a release?Dimensions:
1159 x 2156 px | 19.6 x 36.5 cm | 7.7 x 14.4 inches | 150dpiMore information:
This image is a public domain image, which means either that copyright has expired in the image or the copyright holder has waived their copyright. Alamy charges you a fee for access to the high resolution copy of the image.
This image could have imperfections as it’s either historical or reportage.
. Some common insects and insects of Nebraska corn fields and potato patches... RAGWEEDS(Genus-Ambrosia) The two ragweeds commonly seen in this country are the smaller andgreater ragweeds. These pests are both annuals. Both are found alongroadsides, low ground and waste places, but the smaller ragweed is verycommon in cornfields. The greater ragweed grows from four to eight feethigh but the smaller species seldom attain a height to exceed four feet. Thestems of both kinds are very rough and the leaves divided. The flowers arepale green in color and curing a certain stage in their development willleave a red stain on the skin if pressed between the thumb and first finfeer.The brown, urn-shaped, beaked, tapering seeds are found in oats, wheat, barley, and other grains, from which they are especially hard to separate. Theseeds retain their vitality for many years. This weed may be eradicated bypulling, mowing, burning, or any other method that will either preventseeding or destroy all seeds formed. SANDBUR(Genus-Solanum). Sandbur The sandbur is an annual so well known that very little description isnecessary. When small it somewhat resembles foxtail. , It grows to be aboutone foot high and is much branched. The seeds ripen from July to Novem-ber and are enclosed in a manJy-pointed bur, which is much more painful tocome in contact with than the cocklebur, as the points are much sharper.The burs are scattered by becoming attached to passing animals. The sandbur can be eradicated by destroying the plant with fire or themower each year. Land planted to corn or other hoed crops should becultivated thoroly. 10 DEVILS SHOESTRING OR MARSH SMARTWEED(Genus-Polygon um)