Calif. 
Calif. 
Calif. 
. 3 
The Nature of and Predisposing Factors for "Wetness" of 
Table Grapes and the Relationship of this Condition to Market 
Quality. To (1) specify what wetness is, (2) determine 
significance of moisture of condensation in relation to wetness, 
(3) determine role of condensed moisture in predisposing the 
fruit to decay, (%#) determine significance of berry juice in 
relation to wetness, (5) evaluate relationship of rough 
handling to berry injury in terms of amount of wetness, 
(6) determine relationship between wetness from injury and 
decay incidence, (7) determine if use of excessive amounts of 
SQo for fumigation predisposes fruit to wetness, (8) determine 
significance of microscopic injuries such as insect punctures 
in relation to wetness, (9) learn changes in permeability of 
the skin to juice during stages of senescence of fruit during 
storage, aa learn if wetness is correlated with maturity 
of fruit when harvested, and (11) learn influence of different 
degrees and types of wetness upon market quality of fruit as 
indicated by wholesale and retail prices. 
Agr. Econe, Pl. Path. ES 456 Coop. ARS 
Control of the Grape Bud Mite by Chemical and Cultural 
Methods. Devise a method of control that can be used by 
commercial grape growers. 
Vitice, Ent. 1710 
Grape Planting Stock Investigations. Investigate 
(1) methods of producing own-rooted vines; (2) methods of 
establishing vines on resistant stocks; (3) mechanization of 
field grafting and improvement in field grafting techniques; 
(4) treatment of rooted and non-rooted stock to eradicate 
soil pests -=- phylloxera and nematodes -=- prior to 
distribution or planting. 
VATICS PL (S1 
The Biology and Control of Insects and Mites Attackin 
Strawberries. 1 Learn effectiveness and safeness of soil 
insecticides. (2) Study biology of insects and mites attacking 
first year plantings and learn importance of their control 
during non-bearing year. (3) Study biology of insects and 
mites attacking strawberries on their bearing year and learn 
effectiveness of acaracide and insecticides on these pests. 
Ente, Bot. 464 
