scholarly journals Computer tomography‐assisted visualization of the movement triggered by frost in Ostrinia nubilalis overwintering in maize stalks

2021 ◽  
Author(s):  
Sándor Keszthelyi ◽  
Antal Binder ◽  
Ádám Csóka ◽  
Zsolt Pónya ◽  
Tamás Donkó
Keyword(s):  
Computer Tomography ◽  
Ostrinia Nubilalis ◽  
Maize Stalks

Appearance of microfungi in maize stalks due to injuries caused by the European corn borer ( Ostrinia nubilalis Hbn.)

2010 ◽  
Vol 58 (1) ◽  
pp. 73-79
Author(s):  
F. Pál-Fám ◽  
Z. Varga ◽  
S. Keszthelyi
Keyword(s):  
Ostrinia Nubilalis ◽  
European Corn Borer ◽  
Room Temperature ◽  
Insect Pests ◽  
Potato Dextrose Agar ◽  
Intermediate Hosts ◽  
Mitosporic Fungi ◽  
Corn Borer ◽  
Source Of Infection ◽  
Maize Stalks

A better understanding of the relationships between insects and microfungi could help to identify the unknown factors reducing yields in maize. As the first step in current research, the aim was to isolate the microfungal species that can be found in the larval cavity of the European corn borer ( Ostrinia nubilalis Hbn. Lepidoptera. Pyraustidae ) (ECB), one of the most important insect pests of maize. In this way, the scale of potential phytopathogens spread by intermediate hosts could be reduced.Fifty stalk sections damaged by ECB larvae were collected in autumn and fifty in spring on a 20-hectare plot in Ráksi (Somogy county). These were placed in wet chambers and incubated at room temperature under natural light. Identification was done from a pure culture inoculated into potato dextrose agar. Twenty-one species from 14 fungus genera were identified, the majority of which were mitosporic fungi. Species belonging to the Fusarium, Acremoniella and Cladosporium genera were predominant. Most of the species were saprotrophic, though some phytopathogenic species ( Gibberella, Colletotrichum, Nigrospora and Fusarium ) were also identified. The number of genera and the incidence of fungi were much higher in spring samples than in autumn ones, except for Fusarium , where incidence was lower in spring. It was found that failing to harvest the maize significantly enhanced the spread of several fungus species, especially phytopathogenic species, the following year, thereby serving as a source of infection.

scholarly journals Voltinism of the European corn borer, Ostrinia nubilalis Hbn., in Poland

2000 ◽  
Vol 36 (No. 4) ◽  
pp. 147-149 ◽  
Author(s):  
Ľ. Cagáň ◽  
G. Sobota ◽  
B. Gabryš ◽  
C. Kania
Keyword(s):  
High Temperatures ◽  
Ostrinia Nubilalis ◽  
European Corn Borer ◽  
Second Generation ◽  
The Other ◽  
Degree Days ◽  
Corn Borer ◽  
Mean Temperature ◽  
The Difference ◽  
Maize Stalks

From 1992 to 1996 the voltinism of the European com borer, Ostrinia nubilalis Hbn., was investigated in Poland. During the study, over 6000 larvae were collected in maize stalks in autumn. In 1994, pupal cases were observed in stalks. This indicated the development of second generation adults of the pest. Pupal cases were not found in other years of the study. The difference between 1994 and the other years was found when the degree-days accumulation at base 10°C was calculated for the periods between July 1 and July 19 (daylight 15 hrs 58 min), or July 29 (daylight 15 hrs 32 min). These values were highest in 1994 and reached 246.5°C, or 414.0°C respectively. The results indicate that degree-days accumulation during the whole year is not responsible for the development of the second generation. It appears that high temperatures in July (not only at the beginning, but also at the end) influenced the development of the second generation of 0. nubilalis in Poland. Average July daily temperatures in 1994 were extremely high (24.5°C). Such temperatures can allow a small partial development of the second generation of O. nubilalis at a relatively cold location like Wroclaw in Poland with a standard annual mean temperature of 8.3°C.

Computer tomography (CT) finding of normal pancreas

1983 ◽  
Vol 19 (4) ◽  
pp. 767
Author(s):  
C J Cho ◽  
B T Kim ◽  
J S Lee
Keyword(s):  
Computer Tomography ◽  
Normal Pancreas ◽  
Ct Finding

Functional multi-spiral computer tomography in the diagnosis of incomitant strabismus

2020 ◽  
pp. 242-243
Author(s):  
S.S. Danilov ◽  
◽  
Y.O. Grusha ◽  
S.E. Avetisov ◽  
I.V. Bodrova ◽  
...  
Keyword(s):  
Computer Tomography ◽  
Spiral Computer Tomography

Computer tomography in diagnostics of osteoarthrosis of the temporomandibular joint.

2018 ◽  
Vol 2 (1) ◽  
pp. 6-12
Author(s):  
Guzal KHAYDAROVA ◽  
◽  
Marat KHODJIBEKOV ◽  
Shukhrat BOYMURADOV
Keyword(s):  
Temporomandibular Joint ◽  
Computer Tomography
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