- 31 - 



Va. Fungicide and Insecticide Conrpatibilitles in Orchard 



Spraying . To determine (1) fvmgicidal effectiveness of 

 standard fungicides; (2) pesticidal potency of insecticides 

 and acaricides; (3) phyixjtoxic character of combinations of 

 these products used in simxiltaneous conibinations; and, (k) 

 sfiifety and effectiveness of certain fungicides when used in 

 alternating sequence, 



Ent., Plant Path, and Physiol. 86020 



Va, Boron Nutrition of Plemts . To study (l) boron require - 



ments of apples; and, (2) relationship betveen volatility of 

 , boron in ashing of plant saarples euid boron requirements. 

 Plant Path, and Hiysiol, 86028 



W. Va, Nutrition of ^ple Trees in West Virginia , In an area 



study, learn (1) most efficient and economical use of N applied 

 as spray; (2) if N reserves in apple trees can be maintained 

 by N sprays alone; and, (3) effect of N sprays on biennial 

 bearing, fruit size, fruit color, storage life, and fruit set. 

 In study of nutrient status of apple orchards, (l) evaluate 

 nutrient statvis of comnaercial orchards as learned by leaf 

 aneLLyses for N, P, K, Ca and Mg; and, (2) learn where in the 

 State, nutrient deficiencies might be appearing and to what 

 extent such a situation may exist, 

 Hort. l6 



W. Va, The Effect of Certain Chemicals on Color, Finish, and 

 Maturation of Apples , To (1) learn effect of chemicals on 

 quantity and quality of color of apples; (2) investigate 

 chemicals which may improve finish on apple varieties, par- 

 ticularly Golden Delicio\is; and, (3) investigate chemicals 

 which may accelerate maturation of apples and/or decrease 

 interval of time existing between first and last fruits 

 that become matiire, 

 Hort, 39 



W, Va, The Effect of Chemical Spray Schedules on the Quality 



and Quantity of Apples Produced, To Determine (1) effect of 

 various insecticides and fungicides and time of application 

 on the quemtity and quality of fruit produced; and, (2) 

 relative cumulative as well eis current season's effect of 

 various spray schedtiles on fruit set, yield, color and finish. 

 Sixteen-year old apple trees will be used. One tree each of: 

 Delicious, Stayman, York, Rome, and Golden Delicious will be 

 in each plot (replicated 7 times per treatment). Ten schedules 

 W13JL be tested. Spray ai)plications will be made with conven- 

 tional high pressure equipment with single nozzle gun, or an 

 8-nozzle broom gun. Records of condition of foliage, fruit 

 set, yield, size, color, finish, maturity, and keeping queLLl- 

 ties, also insect and disease control results will be kept. 

 Plant Path,, Bact,, Ent,, Hort, 83 Coop, ARS 



