TAILIEUCHUNG - A comparison of the development times of trissolcus rufiventris (Mayr) and Trissolcus simoni Mayr (Hym.: Scelionidae) at three constant temperatures

The effects of temperature on the development of the egg parasitoids Trissolcus rufiventris (Mayr) and Trissolcus simoni Mayr (Hym.: Scelionidae) were determined at 3 constant temperatures. | Turk J Agric For 30 (2006) 383-386 © TÜB‹TAK A Comparison of the Development Times of Trissolcus rufiventris (Mayr) and Trissolcus simoni Mayr (Hym.: Scelionidae) at Three Constant Temperatures Müjgan KIVAN*, Nihal KILIÇ Nam›k Kemal University, Faculty of Agriculture, Department of Plant Protection, Tekirda¤, TURKEY Received: Abstract: The effects of temperature on the development of the egg parasitoids Trissolcus rufiventris (Mayr) and Trissolcus simoni Mayr (Hym.: Scelionidae) were determined at 3 constant temperatures. Female development ranged from days at 32 °C to days at 20 °C for T. rufiventris, and from days at 32 °C to days at 20 °C for T. simoni. The average development time of males was shorter than that of females for each parasitoid species. The development of female T. rufiventris required degreedays above the theoretical threshold of °C and that of males required degree-days above °C. The lower threshold temperature and thermal requirement of T. simoni were estimated as °C and degree-days for females and °C and degree-days for males. The immature stages of T. rufiventris developed faster than those of T. simoni. It was concluded that T. rufiventris has an advantage in the biological control of Eurygaster integriceps Put. (Het.: Scutelleridae). Key Words: Eurygaster integriceps, Trissolcus simoni, Trissolcus rufiventris, egg parasitoids, development, thermal requirement Üç Sabit S›cakl›kta Trissolcus rufiventris (Mayr) ve Trissolcus simoni Mayr (Hym.: Scelionidae)’ nin Geliflmelerinin Karfl›laflt›r›lmas› Özet: Yumurta parazitoitleri Trissolcus rufiventris (Mayr) ve Trissolcus simoni Mayr (Hym.: Scelionidae)’nin geliflimine 3 sabit s›cakl›¤›n etkileri belirlenmifltir. Difli geliflme süresi, T. rufiventris için 32 °C’de , 20 °C’de gün, T. simoni için 32 °C’de gün, 20 °C’de gün aras›nda de¤iflmektedir. Her bir parazitoit türü için ortalama erkek geliflme süresi .

• Nông nghiệp
• Eurygaster integriceps
• Trissolcus simoni
• Trissolcus rufiventris
• Egg parasitoids
• Thermal requirement
• Sunn Pest
• Overwintering sites
• Adults spend autumn
• Relative variation
• Heteroptera
• Cereal pest Scutelleridae
• Molecular orbital calulations
• Methylcyclohexene isomers
• Geometry optimized structures
• Eurygaster integriceps Put
• Development threshold
• Sum of degree days
• Chemical control in wheat
• Egg parasitoid
• Biology of overwintered
• Eurygaster integriceps Puton
• Biological control
• Insect cellular immunity
• Hemipteran pest E
• integriceps
• Lipoxygenase inhibitor
• Cyclooxygenase inhibitors
• Homopteran species
• Growing degree day
• Photo thermal units
• Helio thermal units
• Thermal requirement of soybean
• Varied environment
• Green gram
• Thermal requirement of green gram
• Green gram (Vigna radiate L
• Different phenological stages
• Varied weather condition
• Physiological maturity
• Crop phenology
• Heat use efficiency
• Barley cultivars under varied microenvironment
• Varied microenvironment
• Agro climatic indices
• Rainfed rice crop at Bhubaneswar
• Rainfed rice crop