-6- 



Tex. Diseases of Peanuts * To study major diseases of peanuts 



in Texas & develop practical measures toward their control, 

 1. Southern Blight. 2. Seedling infections. 3» Leaf spots. 

 PI. Physiol. &. Path. 605 Coop. ARS 



Va. Peanut Nutrition and Factors Affecting the Fruiting and 



Maturity of Peanuts . Study of the physiological factors affect- 

 ing the maturity of peanuts is undertaken to obtain information 

 that is essential for proper evaluation of any peanut research 

 involving yields. 



PI. Path. & Physiol. 86027 



Va. Control of the Southern Corn Rootworm Attacking Peanuts . 



To obtain information on: (1) insecticidal effectiveness of 

 new compounds & decreased concentrations of those now recom- 

 mended; (2) insecticidal effectiveness of new formulations; 

 (3) efficiency of insecticide- fertilizer mixtures compared 

 to granulated & dust formulations; (4) insecticidal effective- 

 ness of side dress applications compared with broadcast; (5) 

 most effective application time; (6) effect of insecticide 

 treatment on maturity of peanut crop; (7) soil persistence of 

 insecticides for rootworm control; (8) amount of residue in 

 peanuts after control measures; & (9) effect of palatability 

 after control measures. 

 Ent. 86042 



Va. Soil-Plant Nutrient Relationships in Peanut Production . 



To (l) determine the optimum calcium-potassium ratio in the 

 fruiting area of peanuts; (2) estimate the quantity of calcium 

 and potassium adsorbed and released by soil constituents; (3) 

 compare several liming materials and gypsum as sources of cal- 

 cium for peanut fruits; (4) compare the ability of peanuts with 

 that of oats to utilize the less available forms of nutrients 

 in the soil; (5) evaluate the relationship of the various forms 

 of plant nutrients in the soil to peanut production: (6) in- 

 vestigate indirect fertilization of peanuts; and (7) study the 

 phosphorus and nitrogen needs of peanuts. 

 Agron. 86049 Coop. USD A 



Va. Effects of the Price Support. Acreage Adjustment, and 



Surplus Removal Programs in Peanuts Upon the Price Relation- 

 ships Between Peanuts and Various Competing Products . Measure 

 extent to which end-users have modified their purchase & use 

 of peanuts due to varying price relationships. Measure demand 

 & price, income & cross-elasticities of peanuts & peanut pro- 

 ducts at end-use levels. 



Agr. Econ. 86080 (SM-14) (Also see Part 2, Section a.) 



