Preferencje help
Polish version English version Język
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 33

Liczba wyników na stronie
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 2 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych:  leaf beetle
help Sortuj według:

help Ogranicz wyniki do:
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 2 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
1

Environmental control of the reproductive diapause in the leaf beetle, Zygogramma suturalis F. [Coleoptera, Chrysomelidae]

100%
Vinogradova E. B., Pantuykhov G. A., Bratchikova N. Y.
Folia Biologica
|
1996
|
tom 44
|
nr 1-2
2

A chromosomal analysis of twelve species of the subfamily Chrysomelinae (Coleoptera, Chrysomelidae)

84%
Petitpierre E., Mikhailov Y. E.
Folia Biologica
|
2013
|
tom 61
|
nr 3-4
3
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Economic indicators and effectiveness of chemical control of leaf beetle larvae and diseases in spring wheat in Podkarpacie Voivodeship Poland

84%
Koniuczak Z., Siekaniec L.
Acta Scientiarum Polonorum. Agricultura
|
2017
|
tom 16
|
nr 1
4

Determination of developmental periods of leaf beetle [Oulema spp.] for short-term forecasting

84%
Walczak F.
Journal of Plant Protection Research
|
2005
|
tom 45
|
nr 3
145-153
Two species of leaf beetle (Oulema spp.) – Oulema melanopus (Linnaeus 1758) and Oulema gallaeciana (Heyden 1870) are classified as the pests of cereals of economicalimportance in Poland. Determination of the optimalperiod of their control is very difficult due to extended time of laying eggs and brood of larvae. Mass brood of larvae of both species takes place at the time when larvae hatched from first laid eggs reached ca. 4 mm length of both species. Both developmental stages indicate an optimal term of leaf beetle control. To improve short-term forecasting and warning system the data on developmental cycles of both species from an egg to larva (ca. 4 mm size), the studies were carried out in the field trails in the Wielkopolska region and some in an environmental growth chamber.
5

Short-term forecasting and monitoring of leaf miners (Agromyzidae) and leaf beetles (Oulema spp.) on winter wheat

84%
Walczak F., Roik K.
Journal of Plant Protection Research
|
2010
|
tom 50
|
nr 4
One of common cereal pests in Poland are flies of the Agromyzidae family. The larvae of these flies is the stage which is harmful. Leaf miner larvae feeding on the leaf parenchyma cause characteristic damage (mines). Their widespread occurrence contributes to a reduction in leaf assimilation surface. Leaf miner larvae mostly damage first-flag and second leaves. Their damage has a negative effect on the yield parameters. Locally they cause losses of economic significance. The flight of leaf miner imagines coincides with the development of leaf beetles (Oulema spp.), another dangerous cereal crop pest. The aim of the conducted research was to determine the optimum time for chemical treatment of leaf mining flies and leaf beetles as part of integrated cereal protection. To achieve that aim, field experiments were conducted in the years 2008–2009 at the Research Station for Variety Testing in Słupia Wielka (the county of Środa Wielkopolska) using winter wheat of the Bogatka variety. Values monitored included the dynamics of flight for leaf mining flies along with the speed of leaf beetle development. The accuracy of the suggested dates was measured by the quantity of the yield obtained. Additionally, the species composition of Agromyzidae damaging winter wheat was also analyzed. During the years of the research, the biggest yields were obtained when both pest species were chemically treated during the period when the leaf mining flies were abundant and when the oldest leaf beetle larvae reached the size of about 2 mm (in the year 2008) and about 4 mm (in the year 2009). It was also determined that the species composition of Agromyzidae damaging winter wheat changes between particular years.
6
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Preservation degree of wet biotopes in the Kozlowiecki Landscape Park based on biodiversity of leaf beetles [Coleoptera: Chrysomelidae]

84%
Scibior R., Dunus W.
Acta Agrophysica
|
2006
|
tom 07
|
nr 2[133]
7

Aulexis erythrodera, a new species of leaf-beetle from Myanmar [Coleoptera: Chrysomelidae: Eumolpinae]

84%
Warchalowski A.
Annales Zoologici
|
2008
|
tom 58
|
nr 3
Aulexis erythrodera, a new species of leaf-beetle from Myanmar is described and illustrated.
8
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Biodiversity of chrysomelid beetles [Coleoptera, Chrysomelidae] of wet biotopes of the 'Lasy Janowskie' Landscape Park

84%
Scibior R.
Acta Agrophysica
|
2003
|
tom 01
|
nr 3[88]
9

A new genus and its two new species of leaf-beetles from Vietnam [Coleoptera: Chrysomelidae: Galerucinae]

84%
Lopatin I.
Genus. International Journal of Invertebrate Taxonomy
|
2003
|
tom 14
|
nr 1
10
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Zwalczanie stonki ziemniaczanej [Leptinotarsa decemlineata Gay]

67%
Pawinska M.
Ziemniak Polski
|
1993
|
nr 2
21-24
11

Stonkowate [Coleoptera: Chrysomelidae] - nowe dla Pienin

67%
Scibior R., Szafraniec S.
Wiadomości Entomologiczne
|
2010
|
tom 29
|
nr 2
107-112
The paper presents detailed information about the localities of 21 species, new to the Pieniny Mountains. The most data concern species collected in protected areas of the Pieniny National Park.
12

Ecological structure of leaf-beetle assemblages (Coleoptera, Chrysomelidae) of the Bug valley plant communities in the Wlodawa–Koden section

67%
Scibior R., Stryjecki R., Pawlega K.
Teka Komisji Ochrony i Kształtowania Środowiska Przyrodniczego
|
2014
|
tom 11
13

Chrzaszcze stonkowate [Col.,Chrysomelidae] na plantacjach wikliny amerykanki [Salix americana Hoedt.]

67%
Czerniakowski Z. W.
Progress in Plant Protection
|
2002
|
tom 42
|
nr 1
215-219
14

Descriptions of new species of the genus Chaloenus Westwood from Greater Sunda Islands (Coleoptera: Chrysomelidae: Alticinae)

67%
Takizawa H.
Genus. International Journal of Invertebrate Taxonomy
|
2012
|
tom 23
|
nr 2
15

Stonkowate (Coleoptera: Chrysomelidae) nowe dla Niziny Mazowieckiej

67%
Scibior R., Pawlega K., Stryjecki R.
Wiadomości Entomologiczne
|
2013
|
tom 32
|
nr 4
16

Leaf damage of the black cherry, Prunus serotina Ehrh., by the leaf beetle, Gonioctena quinquepunctata Fabr.: an accidental foraging on a neophytic host, or an established trophic link?

67%
Halarewicz A., Jackowski J.
Polish Journal of Ecology
|
2011
|
tom 59
|
nr 3
The Black Cherry (Prunus serotina Ehrh.), a North American forest tree, had been extensively planted for timber production in order to improve soil quality in pine plantations in European forests during the first half of the 20th century. Unfortunately, it failed to meet the foresters’ expectations. It has instead spread rapidly in silvicultures becoming a notorious weed species, difficult to control. Although it still has alien plant status, it seems that 150 years of its presence on the European continent might suffice for this neophyte to become adopted as a host plant by the native fauna of insect herbivores. The observations of Prunus serotina were conducted in 2009–2010 in the Rudno Forest District, Lower Silesia, Poland, on Prunus serotina plants growing as a thick understorey shrub layer in fresh mixed deciduous forest. The analyses, performed in 7–10 day intervals from April until the end of July each year, aimed at monitoring the population dynamics of Gonioctena quinquepunctata on P. serotina plants, and the dynamics of leaf perforation caused by this herbivore, in order to determine the relation between these two species. The insects were observed on 100 shoots on 10 plants on each observation date, and were recorded in situ. Based on the estimates of the leaf damage, the mean perforation index (PI) (%) was calculated on each date for each plant shoot, expressed as the mean percentage of the perforated leaf blade area. PI (%) was subsequently correlated with the beetle and larvae density on the plants. It has been demonstrated that the feeding of G. quinquepunctata on Black Cherry plants is more closely associated with the presence of its larvae, than with that of the beetles. Although the mean PI value on each observation date was never higher than 12%, the maximum perforation of individual leaf blades occasionally exceeded 50%, whereas the maximum mean PI calculated for individual shoots on each observation date reached as much as 47%. The authors suggest that feeding of G. quinquepunctata on P. serotina may represent an example of a well established trophic link between a native herbivore and a plant species still considered a neophyte.
17

Najwazniejsze szkodniki wierzby wiciowej [Salix viminalis]

67%
Ropek D., Barabasz W., Szmigiel A., Kolodziejczyk M., Oleksy A.
Progress in Plant Protection
|
2005
|
tom 45
|
nr 2
1032-1034
18

Chrzaszcze z rodziny stonkowatych [Chrysomelidae] szkodniki drzew i krzewow ozdobnych

67%
Soika G., Labanowski G.
Progress in Plant Protection
|
2001
|
tom 41
|
nr 2
412-416
19

Species diversity of the chrysomelid beetles (Coleoptera, Chrysomelidae) in marsh and alder swamp of the "Lasy Janowskie" landscape park

67%
Scibior R.
Teka Komisji Ochrony i Kształtowania Środowiska Przyrodniczego
|
2004
|
tom 01
20

Doeberlia subopaca, a new genus and species of leaf-beetles from China [Coleoptera: Chrysomelidae: Chrysomelinae]

67%
Warchalowski A.
Annales Zoologici
|
2007
|
tom 57
|
nr 3
Doeberlia subopaca, a new genus and species of leaf-beetles from China is described and illustrated.
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 2 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.