Parasitism and development of<Emphasis Type="Italic">Trissolcus simoni</Emphasis> in eggs of different host species |
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| Authors: | Email author" target="_blank">M?KivanEmail author N?Kilic |
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| Institution: | (1) Dept. of Plant Protection, Faculty of Agriculture, University of Trakya, Tekirdag, Turkey |
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| Abstract: | A scelionid egg parasitoid,Trissolcus simoni (Mayr), was investigated by exposing different host eggs to parasitism by females in order to assess the role of this alternative
host species in the biological control of the sunn pestEurygaster integriceps Puton. Egg masses of laboratory colonies of four field-collected host species were used in the experiments. Parasitism rates
ofE. integriceps, Dolycoris baccarum (L.),Graphosoma lineatum L. andCarpocoris pudicus (Pd.) averaged 86.8%, 81.6%, 82.8% and 84.0%, respectively. The parasitoid sex ratio and the percent of adult emergence did
not differ significantly among the four hosts. The average development period was shorter inD. baccarum andC. pudicus, with respective mean times of 10.3 and 10.8 days for females, and 9.2 and 9.6 days for males, than inE. integriceps andG. lineatum. According to these results, all the tested eggs were adequate hosts forT. simoni development.
http://www.phytoparasitica.org posting Dec. 19, 2003. |
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| Keywords: | Insecta biological control Eurygaster integriceps Trissolcus simoni host preference parasitism pentatomids |
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