. Appendix to the Journals of the Senate and Assembly of the ... session of the Legislature of the State of California. l attack is made at this stage. Themethods for fighting it are twofold, viz.: preventive and destructive. Indiscussing these methods it will be well for us to begin with the destructive measures used against the borer are either the tediousway of digging it out with a knife or chisel or with an especially madeinstrument (Fig. 3), or by the use of strong washes applied to the trunkand roots below ground, or by the fumes of carbon bisulphide. In looking over the vari
. Appendix to the Journals of the Senate and Assembly of the ... session of the Legislature of the State of California. l attack is made at this stage. Themethods for fighting it are twofold, viz.: preventive and destructive. Indiscussing these methods it will be well for us to begin with the destructive measures used against the borer are either the tediousway of digging it out with a knife or chisel or with an especially madeinstrument (Fig. 3), or by the use of strong washes applied to the trunkand roots below ground, or by the fumes of carbon bisulphide. In looking over the various remedies which have been used since theinsect became known, I find the following which have given goodresults: The Digging-out or Worming Method.—The digging-out or wormingmethod is no doubt the surest way to know that the borers are killed,provided that good conscientious workers can be had. The best time todo the work is in November or December. The soil, which should bemoist enough to crumble, is removed from around the tree and the barkscraped free from all clinging materials, such as gum and earth. With. Fig. 3. Instrument for digging out peach-root borers. a knife or chisel, or, still better, the regular tool (Fig. 3), composed ofhook, scraper, and chisel, the search for the borer is made. First find achannel and follow it up or down, using the hook, and locate the a thorough search for every one until you are satisfied that allborers are out of the tree. Care should be exercised not to take toomuch bark off—only the necessary quantity to get the borers out. Thetrees may be left open for a few days, especially if moist weatherprevails, and then can be covered up until spring, when some preventivemay be used, as shown later on. Some growers have dug for borerstwice a year, generally in May or June, with good results. Shallow-rooted trees are attacked more severely than trees planted deep ; andtrees with root-knot are also favorite places for the borer to
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