نتایج جستجو برای: flies unspecified
تعداد نتایج: 29658 فیلتر نتایج به سال:
Resistance to diamondback moth, Plutella xylostella (L.), has been a major criterion for selection in the crucifer breeding program at the New York State Agricultural Experiment Station. Two types of resistance have been identified and studied. Larval survival on normal wax genotypes (with the typical whitish bloom of cultivated Brassica) is about 50% of survival on susceptibles. Polar extracts...
The detection of resistance in codling moth (Cydia pomonella) populations against the Mexican isolate of its granulovirus (CpGV-M), raised questions on the sustainability of the use of this biological insecticide. In resistant host cells, CpGV-M is not able to complete its replication cycle because replication is blocked at an early step. Virus isolates able to overcome this resistance have bee...
All published records for the 49 species of moth flies known from North Africa are reviewed and discussed: Morocco (27 species), Algeria (33 species), Tunisia (18 species) and Egypt (five species). In addition, records of seven species of Psychodinae new to the fauna of Morocco are added, of which three are new mentions for North Africa (Table 1) and one is a new record for Egypt. Telmatoscopus...
We introduce the UAV learning model in which some of the attributes in the examples are unspecified. In our model, an example x is classified positive (resp., negative) if all possible assignments for the unspecified attributes result in a positive (resp., negative) classification. Otherwise the classificatoin given to x is "?" (for unknown). Given an example x in which some attributes are unsp...
Although the assumption of elliptical symmetry is quite common in multivariate analysis and widespread a number applications, problem testing null hypothesis ellipticity so far has not been addressed fully satisfactory way. Most papers literature indeed are dealing with specified location actually address rather than non-elliptical alternatives. In this paper, we proposing new classes procedure...
background: cutaneous leishmaniasis is a major health problem in iran in spite of implementation of control program. this infectious disease caused morbidity in less than 27000 people in 2010. this study was set to determine some ecological aspects of sand flies in fasa district, fars province, southern iran during 2011–2012. methods: a total of 4792 sand flies were captured by means of sticky...
Background and purpose: One of the most popular methods to control the synanthropic flies is using parasitoid wasps. The aim of this study was to estimate the experimental parasitism rates of pupae of Musca domestica, Lucilia sericata, and Sarcophaga heamorrhoidalis by parasitoid wasps, including Nasonia vitripennis, Spalangia nigroaenea, and Pachycrepoideus vindemmiae. Materials and methods: ...
Abstract Background The Conopidae are an interesting family of small- to large-sized endoparasitic flies, commonly known as thick-headed flies. These flies have been proposed potential biological control agents invasive social wasps (subfamilies: Polistinae and Vespinae, family: Vespidae). Results All Algerian (family Conopidae) listed in the present study. Four subfamilies, nine genera 23 spec...
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