File:Imperial Valley settlers' crop manual (1911) (14595955438).jpg

Identifier: imperialvalleyse210coit (find matches)
Title: Imperial Valley settlers' crop manual
Year: 1911 (1910s)
Authors: Coit, J. Eliot, b. 1880 Packard, Walter E. (Walter Eugene), 1884-1966
Subjects: Agriculture Agriculture
Publisher: Berkeley : University Press
Contributing Library: University of California, Davis Libraries
Digitizing Sponsor: University of California, Davis Libraries

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istened by eachapplication of water that no harm would be done to the vines whenyoung. Any crop which requires constant or frequent irrigationshould not be grown among bearing vines or the quality of the fruitwill suffer. Other growers make mixed plantings of fruit trees, peaches,apricots, etc., with vines. There are indications that this may be agood practice. The trees break the force of the wind and make iteasier to raise the vines and give them a suitable shape. Diseases of the Vine.—So far no fungous disease of the vine ofany importance has been noted in Imperial County. The dryness ofthe air during the growing and ripening season of the early grapesmakes it unlikely that there should ever be much trouble from thissource. The moister weather which occasionally occurs after mid-summer might involve danger in this respect, but no fungous diseasehas yet been called to the attention of the Experiment Station. Bulletin 210. imperial valley settlers CROP manual. 205 3 orq I <! 5 p
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206 UNIVERSITY OF CALIFORNIA EXPERIMENT STATION. The only serious insect pests that have been noted are the vinehopper and a species of thrips. The vine hopper seems at present confined almost entirely to onelocality, but it is possible that it may become as serious a pest as itis in many other parts of California. The only method of controlwhich so far offers much chance of success can be applied effectivelyonly to vines which have a distinct trunk with all arms well off theground.10 This offers another forcible reason for adopting the mode oftraining recommended. The thrips have been found in large numbers on the vine blossoms.So far as noted, no particular damage seems to have been done, astheir attacks were confined to the second crop. Several cases of dying vines were investigated. In some cases thenumbers of dying and dead vines was large. In all cases the troubleseems to be due to mistakes in irrigation or cultivation. In the worstcases the trouble seemed to be due to the shall

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