Sublethal Efects of Densonucleosis virus on Reproduction in Female Adults ofPeriplanetafuliginosa

Sublethal effects of reproduotion in female adults were found when eighth and ninth-instar female P. fuliginosa nymphs werw treated by PfDNV with three diffirent concentrations. The results showed that the longevity of female adults were reduced 121days, 145days and 179days, respectively. The cviposition period were reduced 62days, 56days and 121days, respectively. The number of oothecaes laid were reduced 16 oothecaes/female, 20 oothecaes/female and 25 oothecaes/female, respectively. The number of eggs laid were reduced 354 eggs/female, 453eggs/female and 558 eggs/female, respectively. The oothecae viability dropped 28%, 28% and 20%,respectively. The fertility dropped 177 times, 226 times and 279 times, respectively. The female adults of P. fuliginosa were effected by DNV when vigorous period of eggs laid in early 4 months continuously. Mean number of egg laid per month were reduced 30eggs/female, 69 eggs/female, 63eggs/female and 55 eggs/female,respectively. Fertility per month dropped 15 times, 34 times,31