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1

Mass production of nucleopolyhedrovirus of the satin moth Leucoma salicis [LesaNPV]

100%
Ziemnicka J.
Journal of Plant Protection Research
|
2007
|
tom 47
|
nr 4
457-467
Nucleopolyhedrovirus (NPV) of the satin moth Leucoma (=Stilpnotia) salicis L. was produced by infecting the larvae with the LesaNPV strain obtained from epizootic center in Katowice. The infected larvae were reared under laboratory, greenhouse and insectarium conditions. Because L. salicis can not be reared on a semi-synthetic food, the insects were maintained on natural products. Efficiency of the mass virus production depended on an insect growth stage, virus concentration and number of infected larvae in a rearing container. The fourth-instar larvae were the best for LesaNPV replication. Inoculation of younger larval stages (third instar stadium) provided less number of inclusion bodies (insects were dying sooner and did not meet their maximum body weight). On the contrary inoculation of older stages (fifth and sixth instars) resulted in slower virus replication and low larva mortality. The virus concentration of 3 x 109 of inclusion bodies per container was the optimum inoculum for the mass virus production (double infection with the virus concentration of 1.5 x 109 inclusion bodies/1000 larvae). The larvae reared at high-density became more infected and it caused their earlier death and in consequences low virus efficiency. Rearing the insect at low density (less than 10 larvae per 1.0L container) was conducive for both an increase of insect body mass and virus replication as well. The highest number of inclusion bodies per one larva (5.3 x 109-7.7 x 109) and the highest total number of inclusion bodies (152 x 1011-188 x 1011) were achieved under these rearing conditions in a greenhouse and insectarium.
2

Outbreaks and natural viral epizootics of the satin moth Leucoma salicis L. [Lepidoptera: Lymantriidae]

100%
Ziemnicka J.
Journal of Plant Protection Research
|
2008
|
tom 48
|
nr 1
23-39
Long standing systematic observations on Leucoma salicis populations revealed numerous occurrences of outbreaks and natural viral epizootics. Number of insects appearing in outbreaks at peak density ranged from 450 to 3250 on 10 examined poplar trees (up to 2 m height). Abundance of virus within population of such a high density increased along with an increase of insect population. Populations with high density and high level of nucleopolyhedrovirus (LesaMNPV) and cypovirus did not last long and collapsed suddenly. Outbreaks of the satin moth were favored by warm and humid conditions while warm and dry spring, summer months were conducive to viral epizootic. Most outbreaks happened in the years with mean temperatures of spring and summer months above 15°C and 50-60% RH while, most epizootics were recorded at similar temperature conditions but lower RH, i.e. 40-50%.
3

Effects of viral epizootic induction in population of the satin moth Leucoma salicis L. [Lepidoptera: Lymantriidae]

100%
Ziemnicka J.
Journal of Plant Protection Research
|
2008
|
tom 48
|
nr 1
41-52
An epizootic was induced by introduction of Leucoma salicis nucleopolyhedrovirus (LesaMNPV) into satin moth (L. salicis) population feeding on poplar Populus nigra L. Introduction of LesaMNPV virus at a rate 4 x 102 of inclusion bodies per tree into insect population (stage L3 and L4) resulted in a rapid outbreak collapse both in the peak and early decline phases. A rate of epizootic development depended on healthiness of satin moth larvae before the treatment. Insect population with a high level of nucleopolyhedrovirus (app. 21% and 26% infected insects) reached the epizootic peak on the 18th day after the treatment (85% and 86% infected insects). Induced epizootic resulted in the decline phase of L. salicis population that continued for subsequent 6 years. Accidental occurrence of fungus Beauveria bassiana (Bals.) Vuill. extended the population decline phase for the period of at least 8 years. Induced epizootic caused a rapid collapse of satin moth outbreak with direct transition from the population peak phase into the population collapse phase with omission of the decline phase. This pattern was not observed in not treated populations. Artificially induced epizootics affected healthiness of insect pupae and adults as well the reproductive potential of females and healthiness of offspring. The weight of pupae obtained from treated larvae was lower when compared with the control. Virus infections were found more frequently in female pupae than in male pupae. This resulted in a 6-28 fold decrease of the number of egg masses and 3.5-5 times lower numbers of eggs deposited by females. Offspring of infected pairs showed symptoms of viral infection (15-28% infected larvae) and the number of offspring was 70-800 times lower in comparison with offspring of not infected pairs. This study presents the results of induced epizootic and has been the first attempt to review and sum up results of long-term research on evaluation of nucleopolyhedrovirus efficacy in natural conditions.
4

Entomopatogenne wirusy i bakterie w programie XIII Miedzynarodowego Kongrsu Ochrony Roslin

100%
Ziemnicka J.
Ochrona Roślin
|
1996
|
tom 40
|
nr 02
21-22
5

Interakcje nukleopoliedrowirusa AgseNPV i preparatu chemicznego Nurelle D 550 EC u rolnicy zbozowki Agrotis segetum [Den. et Schiff.]

100%
Ziemnicka J.
Progress in Plant Protection
|
2008
|
tom 48
|
nr 4
1340-1344
6
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Studies on nuclear cytoplasmic polyhedrosis viruses of the satin moth (Stilpnotia salicis L.) (Lepidoptera, Lymantriidae)

100%
Ziemnicka J.
Prace Naukowe Instytutu Ochrony Roślin
|
1981
|
tom 23
|
nr 1
7

Efekt lacznego stosowania dwoch patogenow w walce z owocowka jablkoweczka Carpocapsa pomonella L.

100%
Ziemnicka J.
Progress in Plant Protection
|
2002
|
tom 42
|
nr 2
452-455
8

Rola bakulowirusa SsMNPV w regulacji liczebnosci populacji bialki wierzbowki Stilpnotia salicis L. [Lepidoptera: Lymantriidae]

100%
Ziemnicka J.
Rozprawy Naukowe Instytutu Ochrony Roślin
|
2000
|
nr 06
1-85
9

Bakulowirusy i ich rekombinanty jako naturalne pestcydy

63%
Michalik J., Ziemnicka J.
Progress in Plant Protection
|
1997
|
tom 37
|
nr 1
311-316
10

Interakcje nukleopoliedrowirusa AgseNPV i chloropiryfosu u rolnicy zbożówki Agrotis segetum (Den. et Schiff.)

63%
Ziemnicka J., Jakubowska A.
Progress in Plant Protection
|
2009
|
tom 49
|
nr 3
11

Substancje zwiekszajace skutecznosc biopreparatu wirusowego w zwalczaniu owocowki jablkoweczki [Carpocapsa pomonella L.]

63%
Ziemnicka J., Ziemnicki K.
Materiały ... Sesji Naukowej Instytutu Ochrony Roślin
|
1992
|
tom 32
|
nr 2
220-222
12
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Enthomopathogenic fungi in populations of the satin moth Stilpnotia salicis L.

63%
Ziemnicka J., Sosnowska D.
Journal of Plant Protection Research
|
1997
|
tom 37
|
nr 1-2
128-137
Six fungal species, Aspergillus flavus Link ex Fr., Beauveria bassiana (Bals.) Vuill., Acremonium sensu Gams, Fusarium sp. Link ex Fr., Paecilomyces farinosus (Holm. ex Gray) Brown et Smith as well a Paecilomyces fumosoroseus (Wize) Brown et Smith, have been isolated as result of studies on entomopathogenic fungi of the satin moth Stilpnotia salicis. The epizootic induced by the fungus B. bassiana in 1994 caused about 92% reduction of the pest population. That has been noted for the first time in a natural population of S. salicis in Poland.
13

Bacillus thuringiensis - czynnik epizootyczny w hodowlach laboratoryjnych owocowki jablkoweczki [Carpocapsa pomonella L.]

63%
Ziemnicka J., Ziemnicki K.
Progress in Plant Protection
|
2001
|
tom 41
|
nr 2
503-508
14

Bakulowirusy - wazny czynnik w regulacji liczebnosci populacji szkodliwych owadow

63%
Ziemnicka J., Jakubowska A.
Ochrona Roślin
|
2000
|
tom 44
|
nr 09
4-6
15

Efekty lacznego stosowania wirusa poliedrozy jadrowej Spodoptera exigua [HBN.] SeMNPV z kationami dwuwartosciowymi

63%
Jakubowska A., Ziemnicka J.
Progress in Plant Protection
|
2004
|
tom 44
|
nr 2
741-744
16

Proby zwiekszenia atrakcyjnosci pozywki w hodowli owocowki jablkoweczki [Carpocapsa pomonella L.]

63%
Ziemnicka J., Ziemnicki K.
Prace Instytutu Sadownictwa i Kwiaciarstwa. Seria C:Biuletyn Informacyjny:Co Nowego w Sadownictwie
|
1992
|
nr 1-2
48-49
17

Efekty subletalne u gasienic Spodoptera exigua wywolane infekcja bakulowirusem

63%
Jakubowska A., Ziemnicka J.
Progress in Plant Protection
|
2006
|
tom 46
|
nr 2
441-445
18
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Infekcyjność wirusa granulozy izolowanego z rolnicy zbożówki (Agrotis segetum Schiff.) dla siedmiu gatunków sówek (Noctuidae: Lepidoptera)

63%
Lipa J. J., Ziemnicka J.
Prace Naukowe Instytutu Ochrony Roślin
|
1972
|
tom 14
|
nr 1
19
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Entomopathogenic fungi in populations of the satin moth Stilpnotia salicis L.

63%
Ziemnicka J., Sosnowska D.
Journal of Plant Protection Research
|
1997
|
tom 37
|
nr 1-2
Six fungal species, Aspergillus flavus Link ex Fr., Beauveria bassiana (Bals.) Vuill., Acremonium sensu Gams, Fusarium sp. Link ex Fr., Paecilomyces farinosus (Holm. ex Gray) Brown et Smith as well a Paecilomyces fumosoroseus (Wize) Brown et Smith, have been isolated as result of studies on entomopathogenic fungi of the satin moth Stilpnotia salicis. The epizootic induced by the fungus B. bassiana in 1994 caused about 92% reduction of the pest population. That has been noted for the first time in a natural population of S. salicis in Poland.
20
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Biological and biochemical characteristics of Spodoptera exigua nuclear polyhedrosis virus [SeMNPV] [Baculoviridae] stored for a long time at different formulations

63%
Jakubowska A., Ziemnicka J.
Journal of Plant Protection Research
|
2003
|
tom 43
|
nr 3
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