. Biennial report . Insect pests; Agricultural pests; Plant diseases. STATE BOARD OF ENTOMOLOGY 75 of persons living iu the control districts who have received the Spencer-Parker vaccine during the past three years. It is evident, however, that much good has been accomplished by the control work. The great reduction in rodents over large areas and the resultant and very apparent decrease of ticks in these areas fully justify the expenditures of money and effort necessary to properly carry on the control Please note that these images are extracted from scanned page images that may hav
. Biennial report . Insect pests; Agricultural pests; Plant diseases. STATE BOARD OF ENTOMOLOGY 75 of persons living iu the control districts who have received the Spencer-Parker vaccine during the past three years. It is evident, however, that much good has been accomplished by the control work. The great reduction in rodents over large areas and the resultant and very apparent decrease of ticks in these areas fully justify the expenditures of money and effort necessary to properly carry on the control 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 Montana State Board of Entomology. Helena, Mont. : Independent Pub. Co.
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Keywords: ., bookauth, bookcentury1900, bookdecade1910, booksubjectinsectpests
