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Maine Identification and Control of the Fungi and Viruses Causing 

 Disease in Low-Bush Blueberries" ! (1) To study numbers and kinds 

 of virus disease present and determine pathogenicity of fungi 

 isolated from diseased blueberry plants j (2) learn what insect 

 vectors are involved and develop control measures, 

 PI. Path., Ent. 99 



Mass. Black-Root Rot of Strawberries . To determine the cause of 



black-root rot of strawberries and to find effective methods of 

 control. 



Pomol., Hort, 98 Coop. ARS 



Mass. Small Fruit Disease Investigation . Establishment of more 



practicable and less expensive methods of applying chemicals. 

 Clarification of most effective time of fungicide applications. 

 Test new fungicides as they are presented. Continue study of 

 role played by oxygen in fruit set and keeping quality. Life 

 cycle and control studies will be made of pathogens causing here- 

 tofore unknown diseases. Investigate eradicant fungicides and 

 chemotherapeutant s . 



Cranberry Station 121 



Mich. Strawberry Red Stele Root Rot Disease; To Study Factors 



of Field Spread and Identification, Resistance, Physiology of 

 the Causal Organism, New Methods of Control, and to Test New 

 Selections Developed Through the Breeding Program for Resistance . 

 To (l) develop technique for red stele diagnosis in field during 

 any period of year; (2) investigate methods to learn resistance in 

 varieties and selections which will lead to more rapid technique; 

 (3) study physiology of causal organism which would have direct 

 bearing on breeding and methods of control; (A) evaluate methods 

 of eradicating the disease once present in soil, to aid in reclaim- 

 ing many infected areas for strawberry growing; and (5) determine 

 if selections developed are red stele resistant. 

 Bot., Hort. PI. Path., 810 



MLnn. Fruit Diseases. — 5. Diseases of Small Fruits and Methods of 

 Control . To make provision for handling emergency diseases which 

 may develop on small fruits, after the Office has been advised that 

 more than preliminary investigations are to be undertaken. 

 PI. Path. & Bot., Hort, 2206-5 



Mo, Downy Mildew and Black Rot Control on Grapea . To find a 



fungicide or a fungicide combinatioi that will effectively control 

 both blackrot and downy mildew with little or no phytotoxic effects. 

 Hort. 194 



