. Appendix to the Journals of the Senate and Assembly of the ... session of the Legislature of the State of California. Plate 8. Lawson Cypress Attacked by Beetle. SOME INSECTS OF THE YEAR 1899-1900. 81 SO that the food supply is cut off. The attack is usually begun atthe top of the tree and extends downward from year to year. This family of beetles generally attacks trees that are not in a veryhealthy condition, although when they become very numerous they taketo healthy trees. Such has proven to be the case with the LawsonCypress Beetle. Those trees which have suffered most severely fromdrou
. Appendix to the Journals of the Senate and Assembly of the ... session of the Legislature of the State of California. Plate 8. Lawson Cypress Attacked by Beetle. SOME INSECTS OF THE YEAR 1899-1900. 81 SO that the food supply is cut off. The attack is usually begun atthe top of the tree and extends downward from year to year. This family of beetles generally attacks trees that are not in a veryhealthy condition, although when they become very numerous they taketo healthy trees. Such has proven to be the case with the LawsonCypress Beetle. Those trees which have suffered most severely fromdrought lately have been most severely injured by the pest; while thosem the same locality which have been kept thrifty are in manv instancesalmost free. After these borers have once gotten into a tree there is no way inwhich they can be killed without injury to the tree. Where the attackIS severe the trees should be cut down and burned during the winterwhile the insects are in their burrows. They begin to eat their way outas early as March, although some appear much later, hence the destruc-tion should be done earlie
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Keywords: ., bookauthorcaliforn, bookcentury1800, bookdecade1850, bookyear1853
