Influence of Landscape Diversity and Composition on the Parasitism of Cotton Bollworm Eggs in Maize. [PDF]
We deployed >50,000 Helicoverpa armigera eggs in maize fields to assess the rate of parasitism by Trichogramma chilonis across 33 sites during a three-year span (2012-2014) in northern China. Subsequently, we used a partial least squares (PLS) regression
Bing Liu +3 more
doaj +1 more source
Parasitism of Cranberry Fruitworm (\u3ci\u3eAcrobasis Vaccinii\u3c/i\u3e; Lepidoptera: Pyralidae) by Endemic or Released \u3ci\u3eTrichogramma Pretiosum\u3c/i\u3e (Hymenoptera: Trichogrammatidae) [PDF]
Two levels of commercially-reared Trichogramma pretiosum were released during the oviposition period of the cranberry fruitworm (Aerobasis vaccinii) in eight Massachusetts (U.S.A.) cranberry bog sites. Release levels of 4.8 X 105 T. pretiosum per ha or 1.
Simser, Dave
core +2 more sources
Self-regulation of insect communities in agrocenoses of organic farming systems
Goal. Establishing the effect of organic farming on the preservation of useful entomofauna in agrocenoses of winter wheat and sugar beet and determining its role in controlling the number of phytophages. Methods.
V. Sabluk +3 more
doaj +1 more source
Analyzing the Mass-Rearing System of the California Red Scale Parasitoid Aphytis melinus (Hymenoptera: Aphelinidae) [PDF]
Results from studies to improve mass rearing production of the parasitoid Aphytis melinus De Bach (Hymenoptera: Aphelinidae) are presented. Parasitoid production was carried out following standard commercial procedures using an alternative host ...
Castillo, María L. +1 more
core +1 more source
Effects of landscape context on herbivory and parasitism at different spatial scales [PDF]
Local community structure and interactions have been shown to depend partly on landscape context. In this paper we tested the hypothesis that the spatial scale experienced by an organism depends on its trophic level.
Steffen-Dewenter, Ingolf +2 more
core +1 more source
Estimating Parasitism of Colorado Potato Beetle Eggs, \u3ci\u3eLeptinotarsa Decemlineata\u3c/i\u3e (Coleoptera: Chrysomelidae), by \u3ci\u3eEdovum Puttleri\u3c/i\u3e (Hymenoptera: Eulophidae) [PDF]
A computer simulation was used to evaluate methods for estimating parasitism of Colorado potato beetle egg mass populations by Edovum puttleri. The algorithm incorporated the specific attack behavior of E. puttleri, and a development time for parasitized
Casagrande, R. A +3 more
core +2 more sources
Cell motility is governed by a complex molecular machinery that converts physico-chemical cues into whole-cell movement. Understanding the underlying biophysical mechanisms requires the ability to measure physical quantities inside the cell in a simple ...
Aleix Boquet-Pujadas +7 more
doaj +1 more source
Natural parasitism of the European corn borer eggs (Hübner) by Trichogramma spp. (Hymenoptera, Trichogrammatidae) was assessed in sweet corn field in north-west Serbia, region Vojvodina at the localities of Ruski Krstur, from 2004 till 2007.
Ján Tancik
doaj +1 more source
Simultaneous Parasitism of Field-Collected Green Cloverworm, \u3ci\u3eHypena Scabra\u3c/i\u3e (Lepidoptera: Noctuidae) Larvae by Endoparasitioids and an Entomopathogenic Fungus [PDF]
The impacts of entomopathogens (e.g., fungi, bacteria, protists and viruses) on larval Lepidoptera and their associated insect parasitoids have been examined in laboratory studies but field studies of interaction between these two mortality factors are ...
Pavuk, Daniel M, Williams, Charles E
core +2 more sources
microRNAs in parasites and parasite infection [PDF]
miRNAs, a subclass of small regulatory RNAs, are present from ancient unicellular protozoans to parasitic helminths and parasitic arthropods. The miRNA-silencing mechanism appears, however, to be absent in a number of protozoan parasites. Protozoan miRNAs and components of their silencing machinery possess features different from other eukaryotes ...
Yadong, Zheng +2 more
openaire +2 more sources

