- 2h. 
Tenn. Studies on Soil Insecticides with Special Reference to 
the Control of the Elongate Flea Beetle stena Elongata. 
(1) Develop a method of soil treatment —— Tarvae 
which are cause of injury to sweet potatoes. (2) Learn 
effects of such soil treatment as are developed on plant 
growth, yield, and off flavors. (3) Study insecticide- 
fertilizer mixtures and their compatibility. (4) Find 
best and most economical dosage of insecticide per acre. 
(5) Learn any possible off flavors that insecticides may 
impart to sweet potatoes. 
Ente 99 
We Ve improvement of Potato Varieties for West Virginia. To 
(1) select promising breeding stocks of improved physiological 
and morphological characteristics having greater resistance 
to disease, insect injury, and unfavorable environmental 
factors commonly found in West Virginia; and (2) to 
determine the nature, variability, and methods of inheritance 
of resistance in potato varieties to diseases and to injuries 
by insects and environmental factors. 
Hort., Pl« Path. 
H, vcweet Corn Insects 
Md. Chemical Control of Insect Pests of Sweet Corn. To 
improve present insecticidal methods of control of insects 
attacking sweet corn or to develop new and more efficient 
methods. 
Ente H=29-m Coope ARS 
N. Y. Control of the Corn Earworm Attacking Sweet Corn in 
(Cornell) Eastern New York. (1) Develop methods and materials of 
greater value than those in current use. (2) Determine 
levels of population potential for each season and relate 
information to county agents and growers. (3) Investigate 
possibility of developing so-called "resistant hybrids" for 
growing conditions in state. (4) Study all conditions that 
appear antagonistic to earworm population development, 
insect enemies, and diseases. 
Ent. 171 
