. Appendix to the Journals of the Senate and Assembly of the ... session of the Legislature of the State of California. as claimed that the apples were not carrying so well as in formervears This may have been partly due to drought and exhaustion ofihe soil. A thorough spraying with kerosene emu sion as oon a theanhids make their appearance will not only result in an increase olsriable f ruH, but also protect the branches. The spray mus be app ledwiTh considerable force, and preferably warm, to increase its penetra-bility. SOME INSECTS OF THE YEAR 1899-1900. Nematode AVorms. 83 Nematode worms,
. Appendix to the Journals of the Senate and Assembly of the ... session of the Legislature of the State of California. as claimed that the apples were not carrying so well as in formervears This may have been partly due to drought and exhaustion ofihe soil. A thorough spraying with kerosene emu sion as oon a theanhids make their appearance will not only result in an increase olsriable f ruH, but also protect the branches. The spray mus be app ledwiTh considerable force, and preferably warm, to increase its penetra-bility. SOME INSECTS OF THE YEAR 1899-1900. Nematode AVorms. 83 Nematode worms, although not insects, yet deserve mentioning onaccount of their importance. Specimens are frequently sent in forexamination. As the practice of growing vegetables under glassincreases the injury caused by these almost microscopic worms willbecome more noticeable. Plate 10 shows the result of the attack unontomato roots grown under glass by G. W. Hurtt, San Bernardino. CalIhe worms attack a great variety of plants, and working in the soil sl^they do, their control is a difficult matter. The sterilizing of the soil. Plate 10. Tomato Roots Attac ked Nematode Worms. with steam as practiced in the East is an expensive operation. How-ever, we believe that the desiccation method which is employed to aconsiderable extent in Europe will prove quite effectual in those portionsot tne fetate which have warm, dry summers. By thoroughly workingthe soil in the summer so that it will lose all the moisture possible, andthen by applying unslaked lime at the rate of four tons to the acre, whichassists still further in the drying of the soil and destruction of the wormsalmost complete immunity should be had. The lime will also destrovsuch fungi as cause the club-root of cabbage, etc., which resembles moreor less the work of the nematodes. But land so heavily limed willusually have to be left fallow for the season 84 UNIVERSITY OF CALIFORNIA—EXPERIMENT STATION. Sprays and Washes. Following a
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