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Wyszukujesz frazę "Helicoverpa armigera" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Light-Trap Catch of Scarce Bordered Straw (Helicoverpa armigera Hübner) Depending on the Sunspot Numbers between Years 1993 and 2011
Autorzy:
Nowinszky, L.
Puskás, J.
Kiss, M.
Keszthelyi, S.
Powiązania:
https://bibliotekanauki.pl/articles/1163578.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Helicoverpa armigera
light trapping
sunspots
Opis:
The study examined the light-trap catch of the Scarce Bordered Straw (Helicoverpa armigera Hübner) (Lepidoptera, Noctuidae) depending on the sunspot numbers. The catching data of examined species were taken from the light-trap registers of the Hungarian Light-trap Network. During the years between 1993 and 2011, 25,531 moths were caught by the 36 light-traps. Our results show that there is low Sun’s activity (the number of sunspots is between 0 and 30); there is no verifiable effect on the efficiency of light trapping of Scarce Bordered Straw. However, in other years, when the number of sunspots is between 30 and 100 and when it is higher than 100, high sunspot numbers cause an increase in the catch.
Źródło:
World Scientific News; 2018, 109; 263-266
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biological control of chickpea pod borer, Helicoverpa armigera Hubner (Lepidoptera: Noctuidae): A global concern
Autorzy:
Wubneh, Wasihun Yaregal
Powiązania:
https://bibliotekanauki.pl/articles/1192108.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
bioagents
Cicer arietinum
Helicoverpa armigera
integrated pest management
Opis:
Chickpea (Cicer arietinum L.) is grown widely in the world because the seeds are rich source of protein for the rapidly increasing population. However, the production and productivity of chickpea have been experienced drastically because of biotic and abiotic stresses. It is vulnerable to a broad range of pathogens and the mainly severe pest being gram pod borer, Helicoverpa armigera. For the management of this serious pest, application of insecticides has several adverse effects on living organisms and the environment as a whole, the use of biological agents for chickpea improvement appears to be appropriate approach. Various studies by different scholars on the effect of different bio-agents against H. armigera have been carried out and found to confer resistance to pod borer. The use of Bacillus thuringiensis (Bt) based microbial insecticides have become an integral part of IPM approaches, particularly because these preparations provide an environmentally suitable alternative to the generally hazardeous broad-spectrum chemical insecticides. These bacterial insecticides like Nuclear Polyhedrosis Virus (NPV), which is target specific and exert no effect on beneficial organisms (e.g. parasitoids and predators). Most natural populations of H. armigera have at least some degree of infection by species-specific NPVs. When the degree of NPV infection can be enhanced, H. armigera larval population can be decimated, without deleterious effects on any other organisms. Various potentially effective parasitoids, like ichneumonid, Campoletis chloridae and Trichogramma spp., are found parasitizing eggs and larvae of H. armigera infesting chickpea. Various insectivorous birds and use of bird perches have long been observed to be effective predators of H. armigera larvae. Similarly various plant extracts have shown insecticidal properties and can be used effectively on field crops. Use of different bio-agents and botanicals having easy ways of formulation, cost effective, environmentally suitable and no or
Źródło:
World Scientific News; 2016, 45, 2; 92-110
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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