-5- 



N. C# Studies on the Cause and Control of Diseases Affecting 



Vegetable Crops in North Carolina * To develop more adequate 

 methods of controlling important diseases through studies 

 to learn prevalence, cause, seasonal development and economic 

 importance of major diseases of vegetable crops; (2) studies on 

 life history, perpetuation and distribution of causal agents and 

 influence of environmental factors on them; and (3) studies on 

 control of these diseases by cultural practices, cropping sequences, 

 and application of chemical treatments to seeds, plants and soil, 

 PI. Path. H-89 



Ohio The Comparison of New Fungicidal, Chemotherapeutic. and 



Nutritional Formulations for the Control of Vegetable Diseases . 

 To (1) compare newly introduced materials with fungicidal 

 properties with better established or reconmended formulations in 

 their ability to control vegetable diseases; and (2) learn limitations 

 and specificities of various new materials other than fungicides for 

 use in vegetable disease control program. 

 Bot. 19-1 



Ohio The Development of New Methods for the Application of 



Fungicidal Formulations to Vegetables, with Particular Reference 

 to the Use of Low-Gallonage Sprays . To develop methods whereby 

 low-gallonage, or concentrate, spray applications may be made to 

 vegetables in such a manner that the resulting degree of disease 

 control will be equal or similar to that obtained with the more 

 dilute formulations now in common use. 

 Bot. 19-2 



Ohio The Improvement of Vegetable Stands by the Use of Seed Treatments , 



To determine what chemical compounds or formulations are most 

 effective as seed treatments in combating damping-off and thus 

 improving stand of various vegetables in different types of soil. 

 Bot., PI. Path. 19-3 



Ohio Control of Soil-Inhabiting Nematodes, Fungi. Bacteria and 



Insects Affecting Vegetable Crops . To (1) determine and classify 

 soil-inhabiting organisms responsible for economic loss on vegetable 

 crops growing in Ohio soils: (2)devise means of controlling most 

 destructive organisms; and (3) design and test types of equipment 

 and application techniques for use in applying various liquid and dry 

 formulations in the control of soil-inhabiting pest complex on 

 vegetables. 



Bot., Eht., Agr. Ehgin. 131 Coop.ARS 



