. Biennial report . Insect pests; Agricultural pests; Plant diseases. RDCKY MDUNTAIN SPDTTED FEVER LIFE CYCLE OF THE SPDTTED FEVER TICK AND SUPPD5ED CYCLE Dr THE VIRUS THt VIRUS 16 THANSnnriD BY TWO TICKS, THE WOOD TICK AND THE RABBIT TICK . IT IS MAINTAINED (1) BY PASSAGE EROn STAGE TO 6TAGE OF THESE TICKS AND (2) BY NEW LINTS OE INFECTION STARTED IN PREVIOUSLY UN INFECTED TICKS ST TEEDING ON INFECTED HOSTS. THE WOOD TICK IS THE ONLY KNOWN AGENT OF HUMAN INFECTION. TICK-DERMACENTOR VENU5TUS 1 EGGjS 4 NYMPHS 2 LARVAE 5 ENGORGED NYMPHS 3 ENGORGED LARVAE 6 MALE and FEMIALL 7 ENGORGED FEFIALE THE
. Biennial report . Insect pests; Agricultural pests; Plant diseases. RDCKY MDUNTAIN SPDTTED FEVER LIFE CYCLE OF THE SPDTTED FEVER TICK AND SUPPD5ED CYCLE Dr THE VIRUS THt VIRUS 16 THANSnnriD BY TWO TICKS, THE WOOD TICK AND THE RABBIT TICK . IT IS MAINTAINED (1) BY PASSAGE EROn STAGE TO 6TAGE OF THESE TICKS AND (2) BY NEW LINTS OE INFECTION STARTED IN PREVIOUSLY UN INFECTED TICKS ST TEEDING ON INFECTED HOSTS. THE WOOD TICK IS THE ONLY KNOWN AGENT OF HUMAN INFECTION. TICK-DERMACENTOR VENU5TUS 1 EGGjS 4 NYMPHS 2 LARVAE 5 ENGORGED NYMPHS 3 ENGORGED LARVAE 6 MALE and FEMIALL 7 ENGORGED FEFIALE THE WOOD TICK COMPLETES ITS LIFE CVCLEl IN TWO YEARS, FEEDING THREE TIMES, FIRST AS LARVAE THEN AS NYHPHS AND LAST AS ADULTS. EACH STAGE FEEDS ON A SEPERATE HOST sTLV on LAftGe. CONTROI METHOnfi AREDIRECTrO AGAINST THE LARVAE AND NYMPHS OM RODENTS AND THE ADULT TICKS ON DOMESTIC ANIMALS. THE METHODS USED ARE RODENT DESTRycr/ON , DIPPING OF DOnESTIC ANIMALS, RESTRICTION OF GRAZING, HAND PICKING AND THE APPLICATION OF REPELLANTS. + ROCKY MOUNTAIN SPOTTEID FEVER f MAN AND RODEwrs + TICK PARALYSIS (nosTLY in childreln ) + TICK PARALYSIS (SHEtPi + TULARAEMIA (Man and rooCnTSI O SEPTIC INFECTION Chan) DESIGNED BY UNITED STATES PUBLIC HEALTH SERVICE. 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.
Size: 2024px × 1234px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauth, bookcentury1900, bookdecade1910, booksubjectinsectpests
