8LIFE CYCLE Aid in determining the origin of infestation Determine the severity of problemTreatment alternatives
9Life Cycle Important Points. Lays 3 to 5 eggs a day 300 to 500 eggs in lifetimeTotal days from egg to adult is about one month at 80.6˚ F.5 molts from nymph to adultCan live well over 6 months without feeding (some reports over 18 months)Johnson (1942) fed bed bugs once (various stages) then kept them in an outhouse for 18 months. Several fed after this.
10TEMPERATURE EFFECTS Below ~55˚ F Development stops Above ~99˚ F Development stopsThrive at temps between ~68˚ F - 80˚ FDie at Temps > 111˚F or < 32 ˚F
11INSPECTION/TREATMENT Must be very thoroughCan be expensiveCan involve disposal of items that can not be effectively treatedMay require more than one treatment
12TREATMENT OPTIONS Heat is your best friend Insecticidal dusts are long lastingSome liquid and aerosol products are labeled for bedbugsIsolate to prevent spreading
13TREATMENT PROCEDURESNothing leaves room without treatment or inspectionBegin at the bed and work outwardsBag items and treat with heat if possibleWrap items in plastic for disposalInsure disposal items are not recycled
14PREVENTION Not easily prevented Resident education best prevention Inspect hotel/motel roomsInspect luggage and clothing upon departure
15ADVICE TO TRAVELERS Cycle clothing thru a clothes dryer on high heat Place items in closed-up auto in the sunFreeze items if convenientIsolate luggage from residence
16MEDICAL ISSUES BAD NEW IS – Bedbugs can carry diseases GOOD NEWS IS – Bedbugs are NOT known to transmitAllergic reactions to bites
17TYPICAL REACTIONSPainless, red welts, often in groups of three, not centralized to one body partPics::: gallery/australia/melbourne/Three Papules: “Breakfast, Lunch, and Dinner” Possibly due to the three ventriculus’ of the bed bugdinnerlunchbreakfastSame Pattern
18MYSTERY BITES Not all welts and irritation are caused by insects Detailed inspection with magnifier (10X)Sticky boards helpfulDetailed questionnaire
21NON-INSECT IRRITANTS Environmental Factors Multiple people itching Tiny fragments of paper, fabric, insulationIrritation may worsen with low humidity
22NON-INSECT IRRITATIONS Medical ConditionsSymptoms associated with diabetes, liver, kidney and thyroid disordersFood allergies, prescription and recreational drugs, and stressPower of suggestion
23Delusory Parasitosis BEDBUGS ARE VISIBLE. GET A SAMPLE. Describe sensations that feel like bugs, worms, or mites are biting, crawling or burrowing into, under, or out of their skin.Complain that furniture is infested.Conviction that no one believes they exist except themselves.BEDBUGS ARE VISIBLE. GET A SAMPLE.