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N. Mex. The Relationship of Nematodes to Seedling Diseases and 

 Verticillium Wilt of Economic Plants , Learn (l) nematodes 

 associated with seedling diseases and Verticillium wilt; (2) 

 role played by nematodes in development of these diseases; (3) 

 devise and evaluate control measures for any disease complexes 

 found. 



Bot., Ent. 74 



N, Y, The Control of Nematodes on Horticultural Crops , Identify 

 (State) species of nematodes associated with root injury or declined vigor 

 in commercial fruit plantings. Show if species are pathogenic to 

 host. Develop control for crops where a nematode problem is 

 ascertained as result of this project, 

 PI. Path., Hort. 8 (NE-34) 



N, C. Relationships of Nematodes to Root Diseases of Crop Plants in 



the Southern States , To (1) determine occurrence, distribution and 

 relative importance of various nematode species as plant disease 

 causing agents in Southern States; (2) isolate and maintain single 

 species of cultures of more important forms found; (3) study 

 taxonomy, life cycles, host-parasite relations and pathogenicity 

 of more important species; and (4) determine relative importance 

 of various species of plant parasitic nematodes in increasing 

 incidence of other soil-borne diseases, 

 PI. Path. H-124 (S-19) 



Okla, The Relation of Nematodes to Crop Production in Oklahoma , To 



learn (1) identity, distribution, and importance of various nematodes 

 known or suspected to be involved in a disease relationship with plants; 

 (2) effect of chemical treatment and cropping practices on control 

 of nematodes; (3) varietal resistance in most important crop plants 

 involved and nature of resistance wherever possible, 

 Bot., PI. Path, 941 (S-19) 



Pa. The Biology and Control of Animal Pests Affecting Cultivated 



Mushrooms . To study the biology and most effective and economical 

 measures for the control of the insects, mites, and nematodes which 

 reduce the mushroom crop. 

 Zool., Ent. 714 



Pa. Survey and Post-Planting Chemical Control of Plant-Parasitic 



Nematodes in Pennsylvania . (l) Learn species of plant-parasitic 

 nematodes present in State; (2) establish range of various nematodes 

 in State; (3) learn extent in which nematodes are involved in plant 

 disease problems of State; (4) seek chemicals which can be applied 

 to plants or soil as post-planting treatments. 

 Bot. & PI. Path. 1292 (NE-34) 



