. Diseases of truck crops and their control . Vegetables. Fig. 72. Parasitized Insects. Treatmext of Pence Posts. a. Cabbage btig parasitized, by Cordyccps nutans, h. cahha^e bug j^tasitized by Cordyceps sobolifera (a. and &. after Lloyd), c. watermelon apbids parasitized by Lysiphldms testaceipes, showing circular holes on the backs of the aphids through which jaiasite emerged, d. a female of L. ieslaceipes in the act of laying her eggs in tie back of a green aphis (after Webster), e. Creosoted post after a period of service, J. a willow post treated, 4 hours in hot creosote and 10 hours
. Diseases of truck crops and their control . Vegetables. Fig. 72. Parasitized Insects. Treatmext of Pence Posts. a. Cabbage btig parasitized, by Cordyccps nutans, h. cahha^e bug j^tasitized by Cordyceps sobolifera (a. and &. after Lloyd), c. watermelon apbids parasitized by Lysiphldms testaceipes, showing circular holes on the backs of the aphids through which jaiasite emerged, d. a female of L. ieslaceipes in the act of laying her eggs in tie back of a green aphis (after Webster), e. Creosoted post after a period of service, J. a willow post treated, 4 hours in hot creosote and 10 hours in cold; set June 13. 1905, exanuned November i, 19141 and showing practically no_ deterioration after 9}^ years' service. 2. A split soft maple post treated 4 hours in hot creosote and 10 hours in cold; set in 1905 and examined November is, 1914- The post was set bdow the creosote line ami some decay has entered beneath the creceote shelL 3. A 5-inch split cottonwood post given a creosote bath treatment, set in 1905 and examined in 1914. The post shows practically no decomposition in either top or bottom. 4. All S-inch ash post split in half, given butt creosote treatment of 6 hours in hot Mid 12 boats in cold, set 1905 and examined in November. 1914. The cietKOted bottom is sound, j^netration on the heart wood surface was less than in the sap wood- The heart wcwd portion of this post wiH undoubtedly give away first. The untreated top is in esculent condition- j. A 4j^inch untreated vrhite cedar _: ^2__ .. Jll_, „^ ' . ,-^„.,. /. A small treating tank in operation- (e. and /.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Taubenhaus, Jacob Joseph, 1884-1937. New York : E. P. Dutton & Co.
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyorkepduttonco
