Debatable question on DDT resistance in flies
Entomologists acknowledge insects can develop resistance to insecticides. Laboratory tests show possible DDT resistant fly strains, but farm failures are more likely due to careless use or inferior products. Removing breeding sites like manure piles and wet spots is essential, as DDT acts slowly and a fly may survive hours after contact.
MENTIONED IN THIS ARTICLE
Uncle Sam
New Insecticide Pyrenone Proves Effective On Livestock
A report notes pyrenone sharply reduces flies on livestock and outperforms older insecticides. Farmers are adopting it in fly sprays as part of integrated pest control for cattle and sheep.
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Thomas E. Dewey
New York
Earl Warren
California
Sacramento
Calif
Warren
Reviving Grindstone With Carboloy Tool
A battered farm grindstone is trued using a sharp pointed tool attached to a small board. The tool is made from carboloy cemented carbide described as the hardest metal made by man.
Tests Show Tung Meal Poisonous to Chickens
The tung meal proved poisonous as a protein source in chick rations at the Florida Agricultural Experiment Station. It caused heavy mortality at 10 and 15 percent levels. At 6 percent and higher levels the meal interfered with feed utilization and growth.
MENTIONED IN THIS ARTICLE
Florida Agricultural Experiment Station
Amusing Designs to Emis udles Per Olive Trees and Taxes
A Balkan tale recalls how in Macedonia the Ottoman authorities taxed olive orchards to deter rival nationalities. The policy pressured owners to abandon olive growing, an important regional industry, by making olive trees unprofitable to maintain.
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Balkan
Macedonia
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