274 research outputs found
New Chemicals for Weeds
Among the new chemicals for killing weeds which appeared on the market in 1940 and 1941 when war needs began to make it increasingly difficult to get sodium chlorate and Atlacide, was Ammate (the name is a contraction of its real chemical name —ammonium sulfate)
The Outlook for Weeds in 1970
Weather interfered with weed control in 1969, and fall conditions allowed many perennial weeds to go into winter in good shape. The result will be another abundant crop of weeds in 1970
Win the Battle with Giant Foxtail
Unless this aggressive weed is fought with determination it can be a real menace to crops. But you can beat it and any other foxtail. Here\u27s how
Make War on Thistles
Nobody likes thistles. This article tells you how to identify the main types found in Iowa and sggests cultural and chemical controls you can apply
Spraying Grows Up
Spraying to control weed and insect pests has grown from babyhood to manhood in about 5 years. Chemical sprays are the ace in the hole a farmer has at his disposal
Control Milkweed
Milkweed grows in scattered areas rather than in bunches which makes it difficult to control. Here are some suggestions for countering this occastionally serious pest
Let\u27s Read the Seed Tag
Most of us are proud of our ability to finger through seeds and pass judgement on their value. And we can tell a lot about seed by this method. But there is a lot more to the story that escapes the eye. If you were to give that seed a detailed laboratory test you might be surprised at the results
Test Your Seed
You can\u27t grow a good crop without good seed. And right now a lot of people in the world can\u27t afford a poor crop on your farm- even if you can
The Control of Poison Ivy
Poison ivy (Rhus radicans L.) is a woody perennial, reproducing by seeds and creeping root stalks. It is found in rocky fields, pastures, fence rows, on roadsides, railroad embankments, under telephone lines, and in rich alluvial woodlands. Poison ivy is native in Iowa and widespread throughout the United States and Canada. Earliest mention of poison ivy was made by Captain John Smith in 1609. J. P. Cornut described the plant in his work on Canadian plants in 1635. It has been shown that as many as 26 different kinds of birds arc responsible for the wide dissemination of poison ivy
Noxious and other bad weeds of Iowa
Within the past 15 years weeds have come to be recognized as the cause of one of the most important losses suffered by American farmers. Experiment station and extension workers, farmers, weed commissioners, insurance companies and farm credit agencies, chambers of commerce and others either directly or indirectly dependent on agriculture have become aroused by the menace of an increased dissemination of noxious weeds.
In Iowa weeds cause a loss of many millions of dollars annually. They crowd out desirable crops, rob them of plant food and moisture, act as hosts for insects and disease-producing organisms of crops, poison or injure livestock, depreciate land values and cause extra labor in cultivation; thus they increase the cost of food production
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