_ 4 - 



Miss, Investigation of the Diseases of Fruit Crops and Their 



Control . To (1) identify and study pathogenic organisms con- 

 cemed with fruit diseases in Mississippi; (2) study factors 

 concerned vdth early "dying-out" of peach trees within orchards; 

 (3) develop effective and simple spray program for control of 

 peach scab, bacterial spot, and brown rot of peach; apple bitter 

 rot and blotch; and other fruit diseases as deemed feasible; 

 and (4) explore and study other methods of practical disease 

 control among various fruit crops as deemed necessary. 

 PI. Path. HL-8 



N. H. Breeding Improved Fruits for New Hampshire . Develop 



improved varieties of fruit, including: (1) hardier peaches; 



(2) later ripening apples, and provide a suitable mate for 

 Mcintosh with greater hardiness and more disease resistance; 



(3) better raspberries and blackberries; (4) late pear variety 

 equal to Clapp's Favorite with more winter hardiness and blight 

 resistance; and (5) later ripening strawberries of superior 

 quality. 



Hort., Bot. 74 



N. J. Tree Fruit Diseases pnd Their Control . To test (l) 



protective and eradicant value of several new fungicides in 

 apple scab control; (2) promising fungicides with insecticides 

 for compatability; (3) nevx materials against cherry leaf spot, 

 peach bacterial spot, and peach brown rot; (4) promising new 

 fungicides or dust in packing house to control brown rot during 

 transit; and (5) to study effect of nitrogen, potassium and 

 minor elements on susceptibility of peaches to brown rot and 

 bacterial spot. 

 PI. Path. 451 



N. Y. Nematodes Parasitic on Roots of Fruit Trees , (l) Assess 



(Cornell) the damage to fruit trees by plant pathogenic nematodes; (2) 

 devise control methods for diseases caused by nematodes; (3) 

 clarify life histories of plant parasitic nematodes, learn 

 influence of environmental factors on their development and 

 pathogeniticy, clarify relationships between nematodes and 

 other organisms in causing diseases of roots of fruit trees. 

 PI. Path. 188 (NE-34)^ 



Ohio The Control of Fruit Diseases. — 2. The Control of Fungus 



Diseases of Stone and Small Fruit Plants^ To (l) learn 

 effectiveness, safety and economic value of new fungicides 

 for control of fungus disease of stone and small fruits; and 

 (2) develop more effective and cheaper fungicide spray schedules 

 for peaches, pliuns, and cherries. 

 Bot. 15-2 



