21 



C. Pestlcldeg and Other Additives 



Ark. Determination of Effect of Ipgectlcides on Plants eind 

 Soils. Including Blo-Assay of Residues f To determine blo- 

 assay methods of determining insecticide residues on crops 

 and in soil to evaluate effects of insecticides, solvents, 

 diluents, and formulations on plant growth, harvest residues 

 and after effects in the soil. 

 Ent. 370 (S-22) 



Calif. Effects of Fxjpdgants. Insecticides, and Herbicides on Soil 

 Productlvltv. Learn (1) Influence of soil properties and various 

 soil management practices on effectiveness of fumigants, insec- 

 ticides and herbicides; (2) effect of fimigants. Insecticides, 

 and herbicides on chemical, physical, and microbiological 

 properties of soil with special reference to soil productivity. 

 Soils, Plant Nutr., Ent. 1532 



Conn. The Influence of Soil Factors on the Herblcidal Effective - 

 (Storrs) ness of Certain Carbamates . To determine the influence of soil 



moisture, texture, organic matter content and pH upon herblcidal 

 activity of these carbamates: isopropyl N-(3 chloro-6HBethoxy- 

 phenyl) carbamate, sec. butyl N -phenyl carbamate; Isopropyl N- 

 (3-chloro-6-«ethoxyirf»enyl) carbamate, isopropyl N-(3-fflethyl- 

 phenyl) carbamate, Isopropyl l*-(3, 6-dlchlorophenyl) carbamate 

 and isopropyl N-(3-chloro-phenyl) carbamate. 

 Plant Sci. 221 (NE-12) 



Del. Control of Phvtopatho genie Fungi. Bacteria, and Nematodes 

 in Soils. To control the phytopatho genie organisms which are 

 prevalent in Delaware soils. Determinations include: (l) influence 

 of soil tempera tiire & moisture; (2) killing distances in different 

 environmental conditions; (3) rates of application necessary to 

 control organisms at various soil depths & at various levels of 

 Inoculum potential in the soil; (4) effect of chemicals in soil 

 on beneficial flora; & (5) residual effect of chemicals on succeed- 

 ing crop plants. 



Plant Path. 17-P 



Ga* Determination of Amounts and Effects of Insecticide Residues 

 "n ^iant 'g and Solls. (l) Leam Insecticide residues on certain 

 important Georgia crops following the use of various Insecticides 

 at different rates, formulations and methods of application; and 

 (2) evaluate effects of Insecticide residues on plant growth, 

 plant products, and soil. 



Ent. 70 (S-22) Coop. ARS 



