Ark. 
Del. 
Del. 
Hawaii 
oe 
I. MISCELLANEOUS INSECTS 
A. General Economic Entomology 
Ecology and Control of Aphids. To study physical, chemical 
and biological factors affecting abundance of spinach aphid, tur- 
nip aphid, pea aphid, greenbug, and cotton aphid, including effect 
on populations of sub-lethal applications of insecticides, and 
effectiveness of various new and standard insecticides in control 
to be determined in conjunction with the ecological study, with 
emphasis on control at low temperatures. 
Ent. 186 
Distribution and Abundance of Economic Insects and Their 
Damage to Crops in Delaware. (1) Increase yields and improve 
quality of crops by obtaining information for more effective 
insect control, for better detection of pest, for facilitating 
more accurate prediction of outbreaks and estimates of crop 
damage, and for indicating direction of future investigations. 
(2) Initiate preliminary emergency research on any species 
found to be of economic importance. 
Ent. 6-E 
The Application of Climatology to Delaware Agriculture. 
To learn (1) frequency distributions of rainfall, temperature 
and humidity for major crop areas of state and probabilities 
of occurrence of certain weather patterns likely to influence 
plant growth, disease, insect infestations and efficiency of 
crop treatments; (2) relationships between macroclimatic and 
microclimatic variables most influential in crop production; 
(3) learn relationship between available meteorological data 
and crop response, spread of plant diseases and severity of 
insect infestations; (4) influence of climatic conditions on 
crop growth, disease and insect infestations and efficiency 
of crop treatment. 
Hort., Agron., Pl. Path., Ent. 14-H (NE~35) Coop. USDC -WB 
The EDB Dip Process for Fresh Fruits and Vegetables. Gis) 
Analyze equipment needs for applying EDB Dip treatment to fresh 
fruits and vegetables. (2) Compare equipment needed for batch 
method and continuous method of treatment in terms of engineer- 
ing and economic factors involved. (3) Design and construct 
pilot model processing unit. 
Agr. Engin., Ent., Pl. Path., Food & Nutr. 742 
