effect of temperature on functional response of carob moth egg parasitoid, trichogramma brassicae bezdenko. (hym.: trichogrammatidae), collected from pomegranate orchards of yazd
نویسندگان
چکیده
ectomyelois ceratoniae zeller (lepidoptera.: pyralidae), is the key pest of pomegranate in iran. trichogramma wasps could be used as effective agents of biological control that can also be used effectively in ipm programs. the effect of host density on parasitism of trichogramma brassicae was studied by exposing densities of 4, 8, 10, 20, 40, 60, 80 and 120 eggs of factitious host (sitotroga cerealella olivier) (lepidoptare.: pyralidae), in glass shell (1×10 cm) and controlled conditions. statistical analysis of functional response was conducted in two steps through sas software. the experiments were carried out at 20, 25 and 30?c. the parasite showed a type ii functional response at 25?c and a type iii at 20 and 30?c. the searching efficiency (a) and the handling time (th) at 25?c were 0.073± 0.011 and 0.311± 0.032, respectively. at 20 and 30?c, b was 0.002?0.0005 and 0.005?0.0007 respectively. th at 20 and 30?c were 0.619?0.028 and 0.425 ? 0.012. to compare the functional response of wasps at 20 and 30?c, an equation with indicator variable was employed. data analysis revealed that the parameters of functional responses are significantly different at 20 and 30?c.
منابع مشابه
effect of different diets of flour moth on its parasitoid wasp fitness, trichogramma brassicae (hym.:trichogrammatidae)
introduction: parasitoid wasp, trichogramma brassicae (bezdenko) (hym.: trichogrammatidae) has excellent position in mass production technology, scope of application, wide geographical distribution and unmatched talent to adapt to different climatic conditions that can be easily reared on mediterranean flour moth (mfm), ephestia kuehniella zeller (lep.: pyralidae). the parasitoid use is in orde...
متن کاملeffect of host egg storage time and wolbachia infection on qualitative characteristics of trichogramma brassicae bezdenko (hym.: trichogrammatidae)
factors hindering the development of inundative biological control are insect rearing costs and provide an adequate amount of natural enemies at the appropriate time. storage of natural enemies is a useful technique to increase time flexibility of parasitoids production, and coincide the natural enemies release with pest outbreaks period, and also could reduce costs of mass production. another ...
متن کاملfunctional response of trichogramma brassicae bez. (hym.;trichogrammatidae) to different egg densities of anagasta kuehniella zell. and plodia interpunctella hub.
functional response of trichogramma brassicae bez. to different densities of eggs of two host species anagasta kuehniella zell. and plodia interpunctella hub. was studied under laboratory conditions (24±1°c, 65±10% rh and 16: 8 l:d photoperiodism). one day old eggs of either host were offered to individual females of t.brassicae in densities 2, 4, 8, 16, 32, 64 and 128 respectively in 21, 15, 1...
متن کاملSide-Effect of Certain Herbicides on Egg Parasitoid Trichogramma evanescens (West.) (Hymenoptera: Trichogrammatidae)
Three laboratory experiments were conducted to evaluate the side-effects of four common herbicides used to control weeds associated with local crops on egg of the parasitoid Trichogramma evanescens. These herbicides are Glyphosate 48%SL, Bromoxynil 24%EC, Thiobencarb 50% and Clodinafop-propargyl 15%WP. The biological aspects such% parasitism, % adult emergence, sex ratio, developmental period a...
متن کاملاثر دماهای مختلف القاکننده دیاپوز بر توانمندی زیستی زنبور پارازیتویید Trichogramma brassicae Bezdenko (Hym: Trichogrammatidae)
زنبورهای پارازیتویید جنس تریکوگراما به دلیل کاربرد گسترده در برنامههای کنترل زیستی، از دهههای گذشته موضوع مورد مطالعه بسیاری از محققان است. یکی از نکاتی که همواره مورد توجه پژوهشگران، تولیدکنندگان و مصرفکنندگان این زنبورها بوده است، افزایش توانمندی زیستی گونههای این جنس در فرایند تولید و ذخیرهسازی بشکل دیاپوز آن میباشد. عوامل محیطی و در رأس آنها دما همواره بر توانمندی زیستی حشرات در تمام...
متن کاملردیابی و شناسایی باکتریWolbachia در زنبور( Trichogramma brassicae (Hym.: Trichogrammatidae
باکتریهای (α-proteobacteria) Wolbachia همزیستهای درون سلولی هستند که در بافتهای تناسلی تعدادی از بندپایان یافت میشوند. القاء بکرمادهزایی در زنبورهای تریکوگراما اغلب توسط این باکتری که از طریق سیتوپلاسم تخم منتقل میشود، صورت میگیرد. در این تحقیق، آلودگی به باکتری Wolbachia در 5/49، 6/3 و 5/2 درصد از افراد جمعیتهای طبیعی زنبور Trichogramma brassicae Bezdenko که بهترتیب از بابلسر، چمستا...
متن کاملمنابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دانش گیاه پزشکی ایرانجلد ۳۹، شماره ۱، صفحات ۰-۰
کلمات کلیدی
میزبانی شده توسط پلتفرم ابری doprax.com
copyright © 2015-2023