Wyniki wyszukiwania - Biblioteka Nauki

1

The composition and role of parasitoids in reducing population densities of diamondback moth Plutella xylostella L. on different cabbage vegetables

100%

Jankowska B. , Wiech K.

Journal of Plant Protection Research

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2006

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tom 46

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nr 3

275-284

EN

In 1993–1997, 990 pupae of diamondback moth (Plutella xylostella L.) were collected from nine different varieties of Brasica oleracea L., grown on experimental farm near Kraków. Only 234 moths (23.6%) were recovered from the cocoons. The most important factor reducing the population of DBM was parasitization (65.1%). It varied between the years of observation and oscillated from 60% to 90.3%. Sixhundred and fourty four specimens of parasitic wasps belonging to 11 species from families: Ichneumonidae (5 species), Braconidae (3 species), Pteromalidae (2 species) and Eulophidae (1 species) were reared out. In each year of observations the most abundant species among DBM parasitoids was Diadegma fenestralis Holmgr. as it constituted 71.4% of all of the wasps reared. In the years 1994 and 1996 with low abundance of diamondback moth, D. fenestralis was the only species parasitizing 66.7% and 89.5% of the pest larvae

PL

W latach 1994–1997 poczwarki tantnisia krzyżowiaczka (Plutella xylostella L.) były zbierane z dziewięciu różnych warzyw kapustowatych. Z zebranych 990 poczwarek w wyniku hodowli uzyskano tylko 23,6% motyli tantnisia krzyżowiaczka. Najważniejszym czynnikiem redukującym liczebność gąsienic było ich spasożytowanie (65,1%), które w poszczególnych latach wynosiło od 60% do 90,3%. W wyniku hodowli uzyskano 11 gatunków parazytoidów (także drugiego stopnia) należących do 4 rodzin: Ichneumonidae (5 gat.), Braconidae (3 gat.), Pteromalidae (2 gat.) i Eulophidae (1 gat.). We wszystkich latach badań największe znaczenie miał gąsienicznik Diadegma fenestralis Holmgr., stanowiąc 71,4% wszystkich wyhodowanych błonkówek. W latach 1994 i 1996, gdy tantniś nie występował licznie, D. fenestralis był jedynym występującym gatunkiem parazytoida, pasożytując 66,7% oraz 89,5% gąsienic tantnisia.

2

Some ecological peculiarities of the diamond back moth [Plutella maculipennis Curt.] population development

100%

Sidlyarevich V. , Lameko V.

Vegetable Crops Research Bulletin

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2000

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tom 52

3

Occurrence and supervised control of the diamondback moth Plutella xylostella [L.] in Brussels sprout crops in Belgium

84%

Van de Steene F. , Callens D.

Vegetable Crops Research Bulletin

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2000

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tom 52

4

Field evaluation of plant extracts for the control of diamond moth (Plutella xylostella Linnaeus) infesting cabbage (Brassica oleracea Linn)

67%

Odewole A. F. , Adebayo T. A.

International Letters of Natural Sciences

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2014

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tom 11

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nr 2

EN

Cabbage (Brassica oleracea Linn.) is one of the important vegetables grown worldwide. Insect pests have been a major constraint to its production with some reported to have developed resistance to commonly available synthetic insecticides. In order to find alternative control for these pests, field experiments were conducted in the early seasons of 2011 and 2012, to evaluate the efficacy of three plant extracts, Tephrosia vogelli Hooks, Zingiber officinales Rosh and Lantana camara Spanish flag, applied at 5, 10 and 25 % w/v concentrations Delthamethrin (a synthethic insecticide) and an unsprayed plot were included as positive and negative controls respectively. Plots were arranged in a Randomized Complete Block Design (RCBD), with three replications. Mean Data over the two planting seasons were subjected to the analysis of variance and significant means were compared using the least significant difference (L.S.D) at P < 0.05. Z. officinales extract effectively control P. xylostella larvae at all concentrations with 25 % w/v gave the best yield of 0.50 kg/ha while T. vogelii and L. camara extracts were as effective as Deltamethrin at different concentrations and hours on diamondback-moth (P. xylostella) adult The present findings indicated that effective botanicals against Diamondback moth adult and larvae of cabbage can be formulated from extract of T. vogelii, L. camara and Z. officinales at 25 % concentration respectively.

5

Roznice w zasiedlaniu dwoch typow chrzanu przez pchelki [Phyllotreta spp.] , tantnisia krzyzowiaczka [Plutella xylostella L.] i gnatarza rzepakowca [Athalia rosae L.]

59%

Rogowska M. , Horbowicz M.

Progress in Plant Protection

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2004

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tom 44

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nr 2

1050-1053

6

Jak chronic rzepak przy masowym wystapieniu gnatarza

51%

Mrowczynski M. , Wachowiak H.

Agrochemia

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2002

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nr 11

18-19

7

Ocena skuteczności środka DiPel DF zawierającego Bacillus thuringiensis w ochronie kapusty głowiastej

51%

Rogowska M.

Progress in Plant Protection

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2010

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tom 50

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nr 3

EN

Field trials were conducted in two localities: Skierniewice and Powiercie near Koło in 2007–2008 to evaluate the efficacy of DiPel DF containing Bacillus thuringiensis sub. kurstaki (54%) (dose: 0.5 and 1.0 kg/ha) in controlling the fuor species of pests: Pieris brassicae, Pieris rapae, Mamestra brassica, Plutella xylostella on white cabbage. The application of DiPel DF at two mentioned doses gave very good results in the control of four presented pests. It was stated a 100% mortality, 7 days after treatment with DiPel DF.

8

Wplyw roslin okrywowych na niektore szkodniki w uprawie kapusty

51%

Kotlinski S.

Progress in Plant Protection

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2002

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tom 42

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nr 2

625-628

9

Podatnosc roznych odmian brokula na opanowanie przez szkodniki

42%

Luczak I. , Osmanski I.

Progress in Plant Protection

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2006

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tom 46

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nr 2

382-385