Jan H. Boczek

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Gamma radiation at doses higher than 10 krad significantly lowered the fecundity of the grain mite,Acarus siro. The fecundity of irradiated females was inversely correlated with dose, both when control or irradiated males were used in the pairing. Irradiation with ionizing radiation affected sexual activity of males. At doses above 10 krad the number of(More)
Anatomy and ultrastructure of the female and male reproductive system inAcarus siro L. were investigated by light and electron microscopy. The female system consists of paired ovaries of nutrimentary type in which oogonia and oocytes are connected by bridges with a large central cell. The oviducts empty into the uterus, which passes into preoviporal duct(More)
Grain mites reared on wheat germ at 21±1°C and 85% r.h. were treated (acclimated) as adults at 0, 14, 28 or 33°C for 1 or 4 days. Fecundity, longevity and numbers of F1 females and males produced were compared. A treatment of 1 day was enough to acclimateAcarus siro and change the studied developmental parameters. Acclimation always lowered fecundity but(More)
Irradiation of the adult grain mite,Acarus siro L., with substerilizing doses of fast electrons significantly reduced fecundity and egg viability. The number of spermatophores found in the bursa of treated females was also considerably reduced. However, no change in the shape of the spermatophores was observed. It is not known whether the decrease in(More)
Fecundity, longevity and survival to adulthood ofAcarus siro (L.) at constant and alternating temperatures were compared. Both fecundity and longevity were affected by alternating temperatures but the effect of the frequency of alternations was not significant. Significantly higher fecundity and longer life spans were recorded at constant temperatures of 14(More)
Various chemicals commonly found in food (twelve monosaccharides, nine sugar alcohols, twenty triglycerides, eleven unsaturated fatty acids and nine saturated fatty acids) were tested in different concentrations for their ability to attract and sustain feeding by the dried-fruit mite,Carpoglyphus lactis (L.). Oleic acid, α-d-glucose and some triglycerides(More)
S OF PAPERS PRESENTED AT THE 4TH INTERNATIONAL CONFERENCE ON STORED-PRODUCT PROTECTION Sep tember 2 1 2 6 , 1986 Carl ton Hotel , Tel Aviv, Israel A: ENVIRONMENTAL AND PHYSICAL CONTROL TOWARDS RATIONAL CONTROLLED-ATMOSPHERE DOSAGE SCHEDULES: REVIEW OF CURRENT KNOWLEDGE P.C. ANNIS CSIRO, Division of Entomology, Canberra, ACT, Australia Over the last 70(More)