- 3k - 



Kans. Accumulation and Effect of Pesticidal Residues in Soils 

 Following Pest Control Practices! To determine (1) rate of 

 insecticidal accumulation and disintegration in soils of 

 various types and at various locations under varying climatic 

 conditions following application of insecticides at normal 

 application rates and at abnormal rates; and (2) effect of 

 pesticidal accumulation in soils upon soil microorganisms 

 and on agricultural crops ordinarily grown in representa- 

 tive localities. 



Ent. 393 (NC-19) 



Md. Development of Antibiotic Substances for Control of 



Plant Pathogenic Organisms , To (1) study organisms 

 capable of producing new antibiotic materials which suppress 

 growth of plant pathogens; (2) determine nature of antibiotic 

 substances produced by these organisms; and (3) develop 

 control practices for plant diseases based on use of these 

 organisms • 

 Bot. J-92 



Mass. Effect of Pesticides on Quality of Fruits and Vegetables . 

 To (l) develop effective methods for detecting differences in 

 flavor which may be caused by pesticides applied to fruits 

 and vegetables before harvest; (2) learn if flavor differences 

 are due to pesticides per se, to decomposition products of 

 pesticides, or changes in food product itself caused by 

 physiological response of plant to the chemical; (3) correlate 

 pesticide or decomposition product residuals with organoleptic 

 analyses; and (A) learn taste threshold values of pesticides 

 and/or their decomposition products. 

 Food Tech. 71 (NE-15) 



Mich. A Study of the Antimitotic Action of Various Organic 



Compounds Used as Insecticides. Fungicides and Herbicides . 

 To (1) assess antimitotic and potential mutagenic action of 

 compounds used in insect, fungus and weed control where previous 

 field or chemical studies may suggest that they have such 

 activity; and (2) classify active compounds as to type of anti- 

 mitotic activity shown on basis of established reactions. 

 Bot. & Pl.Path. 99 



Mich, The Role and Fate of Herbicides. Antibiotics. Growth 



Regulating Substances and Other Compounds in Different Soil 

 Types . To (1) study residual effect of herbicides, antibiotics, 

 and plant hormones in different soils; (2) find effect of 

 various compounds on microbial flora of soils; (3) find species 

 of bacteria which might prove helpful in aiding disintegration 

 of herbicides; and (4) determine effect of biuret on plant 

 growth, to determine the cause of transformation of urea to biuret, 

 and to determine biuret content of various commercial sources 

 of urea. 



Hort., Soil Sci., Bact. 123 



