- 2 - 



Ind, Studies of Etiology. Epidemiology and Chemical Control of 



Fruit Diseases , Learn effectiveness of (1) fungicides, 

 combinations of fungicides, and of additives for control of tree 

 fruit and small fruit diseases; (2) nematocides for control of 

 nematodes in small fruit and tree fruit plantings. Obtain (3) 

 information on developmental physiology of tree fruits and relate 

 changes in physiology to susceptibility to rotting organisms; 

 (a) additional information on factors favoring development and 

 spread of B, ribis and related fruit rotting organisms, 

 Bot. &"P1. Path. 953 



Ind, Baprovement of Tree Fruits and Stoall Fniits by Breeding for 



Disease Resistance. Quality, and Other Characters , (1) Search 

 for and evaluate disease resistance and other desirable horti- 

 cultural characters in tree fruit and small fruit species; (2) 

 learn genetic basis for important pathogenicity and resistance 

 factors in pathogens and hosts, and genetic bases for other 

 desirable horticultural characters used in breeding programs; 

 (3) examine chromosomal condition in breeding stocks and induce 

 changes in numbers where necessary to effect in^jrovement by 

 interspecific hybridization and polyploid breeding; (4) breed 

 commercially desirable tree and small fruit varieties through 

 hybrid! nation -of desirable germ plasm, 

 Hort,, Bot, & PI. Path, 960 Coop. ARS 



Ky. The Develotfflient of New Fruits Adapted to Kentucky , To 



develop fruit varieties adapted to Kentucky and superior in 

 quality, food value, and resistance to disease, 

 Hort. 555 



La, Production. Breeding and Handling of Tree and Small Fruits 



with Particular Reference to Figs. Pears and ?fi.gcellaneous Fruits . 

 To assemble and evaluate existing varieties in Louisiana; improve 

 these varieties through breeding and test them on various markets 

 for fresh and processed fruits, 



Hort,, Food Technol, 822 Coop, ARS 



Maine Virus Diseases of Deciduous Tree Fruits , (l) Learn extent 

 and importance of virus diseases in apple and cherry varieties 

 grown in Maine; (2) study epidemiology of disease and insect 

 vectors involved; (3) develop an accurate method of indexing 

 deciduous tree fruits for virus infection; (A) devise a workable 

 method of control, 



Bot, & PI, Path, 55 (NE-IA) 



