نتایج جستجو برای: pre oviposition period

تعداد نتایج: 780495  

Journal: :journal of crop protection 2015
samar ramzi ahad sahragard jalal jalali sendi ali aalami

a castanea crenata agglutinin (abbreviated as cca) was extracted and purified from bitter apple, citrullus colocynthis l., to determine its effects on the demographic parameters of apomyelois ceratoniae zeller. two groups of first larval instars were reared on an artificial diet containing 2% (w/w) of cca and control diets until emergence of adults. two sex ms-chart life table software was used...

Journal: :Agronomy 2022

The frequency and magnitude of climate extremes, especially temperature extremes (TE), are increasing, which exposing insect populations. However, responses to TE poorly understood. In this study, we investigated the impact high-temperature (HT: 38 °C) low-temperature (LT: 3 stresses on demographic parameters population projections peach fruit fly, Bactrocera zonata, a destructive pest fruits v...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده زبانهای خارجی 1392

the present study was an attempt to compare the effect of peer metalinguistic corrective feedback on elementary and intermediate efl learners speaking ability to see which level benefits more from this type of feedback. to this end, 117 female efl learners at grade 3, al-zahra high school in kermanshah, iran were non-randomly chosen. the homogeneity of the participants was attained through a pi...

پایان نامه :دانشگاه آزاد اسلامی واحد کرمانشاه - دانشکده زبانهای خارجی 1393

this study investigated (a) the learners’ existing reading strategy repertoire, (b) the effect of instruction in reading strategies on learners’ strategic performance, and (c) the effect of explicit instruction in top-down reading strategies on reading comprehension ability of intermediate learners. the study was conducted with 40 intermediate efl learners in two groups of experimental and cont...

Journal: :Journal of medical entomology 2012
M F Chaudhury A Sagel S R Skoda

The waste artificial larval rearing media of New World screwworms, Cochliomyia hominivorax (Coquerel) were evaluated to determine their effectiveness as oviposition attractants. Various concentrations of waste larval media resulting from rearing screwworm larvae in gel and cellulose fiber-based artificial diets tested over a 4-wk period attracted varying number of gravid screwworm flies to ovip...

Journal: :Brazilian journal of biology = Revista brasleira de biologia 2013
G I Diez-Rodríguez L K Hübner L E C Antunes D E Nava

The larvae of the southern beet webworm Herpetogramma bipunctalis (Fabricius, 1794) damage the leaves of species in the plant genus Rubus. The present study investigated the biology of H. bipunctalis and developed a protocol for raising H. bipunctalis under laboratory conditions. On the basis of the biological data, we devised a life table. In order to develop the rearing procedures, we determi...

Journal: :Egyptian Academic Journal of Biological Sciences. A, Entomology 2021

Fall armyworm, Spodoptera frugiperda belongs to order Lepidoptera and family Noctuidae, is becoming a serious threat in maize growing areas of the world. Firstly, it was reported from African countries caused significant economic crop losses. Recently pest has been various Pakistan knowledge biomorphic characters important. By keeping view, current study conducted. The resulted that complete me...

Journal: :Memorias do Instituto Oswaldo Cruz 2000
D M Barros-Battesti V C Onofrio S M Simons V L Bonoldi N H Yoshinari

Oviposition and eclosion periods for Ixodes didelphidis were observed under two temperatures (25 degrees C and 27 degrees C) and 90-95% humidity. Although there was a significant increase in the eclosion period (p<0.05) and a tendency to increase the oviposition period at 25 degrees C, there was neither significant differences in the interval (days), until maximum peak of eclosion nor in the nu...

Journal: :Chemical and Biological Technologies in Agriculture 2021

Abstract Background Spodoptera frugiperda (JE Smith), or fall armyworm, is one of major migratory agricultural pests with a wide range hosts. The effect different hosts (maize and kidney bean) on the growth reproduction S. were investigated using age-stage, two-sex life table method. Results results showed that could complete its entire cycle both hosts, albeit significantly development reprodu...

2016
Shangkun Gao Yanlong Tang Ke Wei Xiaoyi Wang Zhongqi Yang Yanlong Zhang

The relationship between body size and fitness in parasitoid wasps has several effects on parasitic ability, reproductive behavior in female wasps, and progeny fitness. Female wasps with various body sizes were obtained by mass-rearing a gregarious ectoparasitoid, Sclerodermus pupariae, which is one of the excellent parasites to control the larvae and pupae of Buprestidae and Cerambycidae. We i...

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