. Economic entomology for the farmer and the fruit grower, and for use as a text-book in agricultural schools and colleges; . " Hopper-dozer" for man-power. "curcuHo catchers " for collecting the pestiferous plum curculio ; or fans or other machinery for gathering grape-leaf hoppers, etc., etc. Such special devices are usually brought to the notice of those that need them through the agency of the experiment stations ; their detailed description would enlarge this chapter out of all due bounds. Finally, a few words as to fumigating outfits. Since the advent of the San Jose
. Economic entomology for the farmer and the fruit grower, and for use as a text-book in agricultural schools and colleges; . " Hopper-dozer" for man-power. "curcuHo catchers " for collecting the pestiferous plum curculio ; or fans or other machinery for gathering grape-leaf hoppers, etc., etc. Such special devices are usually brought to the notice of those that need them through the agency of the experiment stations ; their detailed description would enlarge this chapter out of all due bounds. Finally, a few words as to fumigating outfits. Since the advent of the San Jose or pernicious scale in the Eastern and Central States, and the general adoption of the hydrocyanic acid gas treatment for nursery stock, so many kinds of boxes, tents, and other coverings have been described that even the mere enumera- tion would make quite a page. Briefly stated, the requisites for successful fumigation are a tight covering and pure chemicals.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectinsects, bookyear1906
