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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e as soon as the dodder appears, as it spreads rapidly. Cocklebur (Xanthium canadense) must be prevented from seedingand to do this considerable watchfulness is necessary, as the plantsgrow rapidly and produce seed when very young. This is especiallytrue in the fall when the cockleburs are apt to come up and go toseed unnoticed. They should be pulled up as soon as seen and ifseed have formed they should be burned. Two years of thoroughwork is often needed, as the seeds are long lived. Rotation of cropsand clean culture is one of the best methods of combating the cocklebur. Running malva (Sphaeralcea augustifolia) or snuffle weed, as it issometimes called, is a pernicious weed to eradicate, which requiresconsiderable patience. The seeds mature quickly and continually andconstant and thorough cultivation is necessary to prevent reseeding.The easier way is to cultivate the plants out while still young beforecoming into bloom. Wild asparagus or Spiny aster (Aster spinosus) spreads both by
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Fig. 48.—Wild asparagus or spiny aster. Bulletin 210. imperial valley settlers crop manual. 245 seed and by underground root stocks, hence the method of fighting itmust be similar to that recommended for Johnson grass. Plowing afield will kill some of the plants, but to exterminate the pest, the topsmust be kept down, so that no green shows above ground and no foodcan be stored in the roots to sustain life for further growth. Theprocess of cutting down this weed as often as it appears above groundis a very tedious one, but if conscientiously followed will be success-ful. The easiest and cheapest way, perhaps, is to plant alfalfa andcut hay two years. This will reduce the hand work to the wild aspara-gus along the ditches and under the fences. Wild Sunflower (Helianthus annus). This is easier to fight thanany of the other weeds mentioned, as it is more easily prevented fromgoing to seed if ordinary care is used. Foxtail (Hordeum jobatum). Rotation of crops is perhaps thebest method o

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