. Control of household insects and related pests. Household pests; Insect pests. TROPICAL RAT MITES Size: less than mm. Tropical Rat Mite, Ornithomjssus bacoti (Hirst) The tropical rat mite, Ornithonyssus ba- coti (Hirst), is most frequently encoun- tered in California homes after the rat on which it lived has left the premises or died. The hungry mites may swarm over the walls and furniture seeking a blood meal. Only %00 inch long, they can be best seen after feeding, when their nor- mal gray-brown color is overshadowed by the red of ingested blood in their swollen bodies. Their bites cau
. Control of household insects and related pests. Household pests; Insect pests. TROPICAL RAT MITES Size: less than mm. Tropical Rat Mite, Ornithomjssus bacoti (Hirst) The tropical rat mite, Ornithonyssus ba- coti (Hirst), is most frequently encoun- tered in California homes after the rat on which it lived has left the premises or died. The hungry mites may swarm over the walls and furniture seeking a blood meal. Only %00 inch long, they can be best seen after feeding, when their nor- mal gray-brown color is overshadowed by the red of ingested blood in their swollen bodies. Their bites cause an nflammation of the skin, known as "rat- >ite dermatitis," and are usually accom- panied by intense itching. There may be /atery blisters or a slight to moderate swelling. In children particularly, the effects of the bites are noticeable, and scratching creates the danger of subsequent bac- terial infection. The mite may transmit endemic typhus to man. WHAT TO DO: Eliminate rats from the house. How- ever, even then tropical rat mites may be a problem. Treat attics, sub-floor areas, cracks, crevices, furnace vents, baseboards, bed- frames, mattresses, etc. with a sorptive dust (page 5) at the rate of % to 1 pound per 1,000 square feet of floor area. In attics and sub-floor areas apply the dust with an electric duster, or large hand or rotary duster; inside living areas, dust may be applied with a hand duster. In conspicuous areas, the dust should be left for at least 24 hours, before remov- ing. In inconspicuous places the dust should be left indefinitely. Other useful control measures include spraying infested areas thoroughly with highly refined kerosene containing leth- ane. A thorough spraying with refined kerosene alone will kill those mites con- tacted, as will wiping furniture with a rag soaked in refined kerosene. Such use of kerosene constitutes a fire hazard; see page 6 for precautions. Various other commercial household spray preparations, such as 0.
Size: 1545px × 1618px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, booksubjecthouseholdpes, booksubjectinsectpests
