. Appendix to the Journals of the Senate and Assembly of the ... session of the Legislature of the State of California. out half apound to the tree, and this wascovered over so as to prevent thewind from blowing it away. In theEastern States tobacco was used bybinding tobacco stems (the midrib ofthe tobacco leaf) around the trunkand then covering with earth. Somegood results were obtained, and it isthought that the liquid, which themoisture brings out of the stems, didthe killing. Tobacco dust and stemscan be had at any of our cigar facto-ries; stems sell for one cent a poundand less, tobacco
. Appendix to the Journals of the Senate and Assembly of the ... session of the Legislature of the State of California. out half apound to the tree, and this wascovered over so as to prevent thewind from blowing it away. In theEastern States tobacco was used bybinding tobacco stems (the midrib ofthe tobacco leaf) around the trunkand then covering with earth. Somegood results were obtained, and it isthought that the liquid, which themoisture brings out of the stems, didthe killing. Tobacco dust and stemscan be had at any of our cigar facto-ries; stems sell for one cent a poundand less, tobacco dust for two cents apound. Gas Lime.—Some years ago it wasthought that gas lime would be agood remedy and would likely killthe borer in the burrow. Experiments were tried, with fatal results tothe tree. I mention this, as on several occasions inquiries as to thismaterial have been received. PREVENTIVE MEASURES. Preventive measures or barriers are substances which prevent theyoung larvae from entering the tree, and it has been the endeavor of theexperimenter to find some substance which would be least affected by. Fig, 7. Peach tree treated with tarredpaper. (After Slingerland.) THE CALIFORNIA PEACH-ROOT BORER. 101 rain and which would yield as much as possible to the expansion of thetrunk of the tree. Paper.—Good paper has lasted better than many other barriers, andvery successful results have been obtained. We have, however, had alsogreat failures, and these can be attributed to the fact that the smallborers—those that are just beginning to enter the bark—were not takenout of the tree. As I have stated above, these small borers are veryoften overlooked, and if inclosed under any paper baiTier will continuefeeding and doing damage, which will be discovered when the paper isremoved in the fall. Some failure may be attributed to weather con-ditions (rain and wind), which soften the paper and cause it to becometorn in places, allowing the borer to enter unobserved. If pape
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