Impact of cold storage temperature and period on performance of Trichogramma evanescens Westwood (Hymenoptera: Trichogrammatidae).

Trichogramma evanescens Westwood (Hymenoptera: Trichogrammatidae) was mass reared in the eggs of Sitotroga cereallela Olivier (Lepidoptera: Gelechiidae). The impact of cold stored pupae of T. evanescenes at 4, 7 and 10C for 1 to 8 weeks was considered as adults emergence, parasitism and females' percent was considered. The results showed that these two factors of storage temperatures and time substantially and negatively influenced produced adults and F1. These effects were regressed for time at each studied temperature. Results revealed correlation values of -0.913 to -0.986 for adults and -0.880 to -0.973 for F1 with P values of 0.0006 to 0.0001, for studied characters, respectively. This reduction in stored pupae performance should be considered in T. evanescens mass production manipulation for biological control. Key word: Trichogramma evanescens, cold storage, mass production, biological control.

[1]  A. Ayvaz,et al.  Effects of cold storage, rearing temperature, parasitoid age and irradiation on the performance of Trichogramma evanescens Westwood (Hymenoptera: Trichogrammatidae) , 2008 .

[2]  A. Ayvaz,et al.  SOĞUKTA DEPOLAMANIN FARKLI KONUKÇULARDA YETİŞEN Trichogramma evanescens Westwood (HYM: TRICHOGRAMMATIDAE)’in FARKLI EVRELERİ ÜZERİNE ETKİLERİ / EFFECTS OF COLD STORAGE ON THE LIFE STAGES OF Trichogramma evanescens Westwood (HYM: TRICHOGRAMMATIDAE) RARED ON DIFFERENT HOST EGGS , 2007 .

[3]  M. Grieshop,et al.  Effects of Shelf Architecture and Parasitoid Release Height on Biological Control of Plodia interpunctella (Lepidoptera: Pyralidae) Eggs by Trichogramma deion (Hymenoptera: Trichogrammatidae) , 2006 .

[4]  S. K. Jalali,et al.  Differential response of fourTrichogramma species to low temperatures for short term storage , 1992, Entomophaga.

[5]  K. S. Brar,et al.  Effect of Low Temperature Storage on the Efficiency of Three Species of Trichogrammatids , 2005 .

[6]  A. Hoffmann,et al.  Effects of cold storage on field and laboratory performance of Trichogramma carverae (Hymenoptera: Trichogrammatidae) and the response of three Trichogramma spp. (T. carverae, T. nr. brassicae, and T. funiculatum) to cold. , 2004, Journal of economic entomology.

[7]  T. Kuhar,et al.  Cold storage of Trichogramma ostriniae reared on Sitotroga cerealella eggs , 2002, BioControl.

[8]  N. Ozder,et al.  Effect of Short Term Cold Storage on the Quality of Trichogramma Brassicae, T. Cacoeciae , and T. Evanescens (Hymenoptera: Trichogrammatidae) , 2004 .

[9]  J. Steidle,et al.  Assessment of Australian Trichogramma species (Hymenoptera: Trichogrammatidae) as control agents of stored product moths. , 2001, Journal of stored products research.

[10]  D. A. Nordlund,et al.  Mass production of Trichogramma spp.: experiences in the former Soviet Union, China, the United States and western Europe , 1996 .

[11]  S. Smith,et al.  Biological control with Trichogramma: advances, successes, and potential of their use. , 1996, Annual review of entomology.

[12]  L-Y. Li.  Worldwide use of Trichogramma for biological control on different crops : a survey , 1994 .

[13]  P. Singh,et al.  Differential response of four Trichogramma species to low temperatures for short term storage [Trichogramma achaeae, Trichogramma japonicum, Trichogrammatoidea eldanae] , 1992 .

[14]  L. Bonnemaison.  Diapause et superparasitisme chez Trichogramma evanescens Westwood [Hym. Trichogrammatidae] , 1972, Bulletin de la Société entomologique de France.

[15]  N. Iacob,et al.  Influence of temperature variations on the resistance of the wasp Trichogramma evanescens Westw. to storage with a view to field releases. , 1970 .