Temat: cabbage moth - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Failure control of Plutella xylostella (Lepidoptera: Plutellidae) and selectivity of their natural enemies to different insecticides
Autorzy:: Bacci, L.
Rosado, J.F.
Picanco, M.C.
Gonring, A.H.R.
da Silva Galdino, T.V.
Martins, J.C.
Tematy:: biological control
Plutella xylostella
Lepidoptera
Plutellidae
selectivity
plant pest
natural enemy
insecticide
Brassica
crop
cabbage moth; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/66522.pdf Link otwiera się w nowym oknie
Opis:: Control failure of pests and selectivity of insecticides to beneficial arthropods are key data for the implementation of Integrated Pest Management (IPM) programs. Therefore, the aim of this study was to assess the control failure likelihood of Plutella xylostella and the physiological selectivity active ingredients to parasitoid Oomyzus sokolowskii (Hymenoptera: Eulophidae) and to predators Polybia scutellaris (Hymenoptera: Vespidae) and Lasiochilus sp. (Hemiptera: Anthocoridae). In bioassays, P. xylostella larvae and O. sokolowskii, P. scutellaris and Lasiochilus sp. adults were used. Concentration-mortality curves of six insecticides for P. xylostella were established. These curves were used to estimate the mortality of P. xylostella at the recommended concentration, in order to check a control failure of insecticides to this pest. Furthermore, the lethal concentration for 90% of populations (LC90) and the half of LC90 were used in bioassays with the natural enemies to determine the selectivity of these insects to insecticides. All tested insecticides showed control failure to P. xylostella, indicated by high LC90 and low estimated mortalities (less than 80%). The cartap insecticide was selective in half of LC90 to Lasiochilus sp. and moderately selective in LC90 and the half of LC90, to Lasiochilus sp. and P. scutellaris, respectively. Deltamethrin was moderately selective in the half of LC90 to predator Lasiochilus sp. Cartap, carbaryl, and deltamethrin reduced the mortality of Lasiochilus sp. in the half LC90. The results also showed that the insecticides methamidophos, carbaryl, parathion methyl and permethrin were not selective to any of the tested natural enemies. The role of insecticides in IPM systems of Brassica crops is discussed based on their control failures to P. xylostella and selectivity to their natural enemies.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Field evaluation of plant extracts for the control of diamond moth (Plutella xylostella Linnaeus) infesting cabbage (Brassica oleracea Linn)
Autorzy:: Odewole, A.F.
Adebayo, T.A.
Tematy:: field evaluation
plant extract
control
diamond back moth
Plutella xylostella
cabbage
Brassica oleracea
deltamethrin
Tephrosia vogelii
Zingiber officinale
Lantana camara; Pokaż więcej
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Powiązania:: https://bibliotekanauki.pl/articles/11513.pdf Link otwiera się w nowym oknie
Opis:: 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.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Doświadczenia nad wykorzystaniem kruszynka (Trichogramma evanescens Westw.) w walce z Plutella maculipennis Curt., Pieris brassicae L. i Pieris rapae L.
Doświadczenia nad wykorzystaniem kruszynka
Experiments on the use of Trichogramma evanescens Westw. in pest control of the vegetable garden pests Plutella maculipennis Curt., Pieris brassicae L. and Pieris rapae L.
Autorzy:: Kot, Jan
Współwytwórcy:: Polska Akademia Nauk. Komitet Ekologiczny
Wydawca:: Państwowe Wydawnictwo Naukowe
Powiązania:: 2. Voelkel, H. 1925 - Über die praktische Bedeutung der Schlupwespe Trichogramma evanescens Westw. - Arb. biol. Reichsanst. Land. - Forstwirt. 14.
l. Meyer. N. F. 1941 - Trichogramma (Ekołogia i riezultaty primienienija w borbie z wriednymi nasiekomymi). - Moskwa - Leningrad.
Ekologia Polska. Seria B
Opis:: The author carried out his experiments in the summer of 1958 on the “First crop” early cabbage (l hectare experimental plot No. l) and the “Amager 1ow-soil” late cabbage (l hectare experimental plot No. 2) on the Łomna estate, and on early cabbage (plot No. 3 - 0,75 hectare) on his own experimental fields at Palmiry near Warsaw.The results of these experiments are as follows:l. As a result of releasing once only Trichogramma evanescens to attack the second generatlion of Plutella maculipennis, 68% of infested eggs were obtained from the plot dominated by the parasites (Tab. I), whereas the density of occurence of caterpillars on the plot in question, compared with the control plot, was reduced by 57,7% (Tab. II).2. As a result of the biological pest warfare employing the Trichogramma evanescens on experimental plots of “First crop” early cabbage, the concentration of the caterpillars of Pieris brassicae and P. rapae on the plots dominated by the parasites was decreased, in comparison with control plots, by an average of 73,1% and 75,5% (Tab. I, II, III). On the other hand, the concentration of the caterpillars of Plutella maculipennis on the “Amager low-soil” experimentally grown cabbage was reduced by an average of 81,2% (Talb. IV). Bio1ogical pest warfare with the cabbage pests Plutella maculipennis Curt., Pieris brassicae L. and Pieris rapae L. using Trichogramma evanescens is extrimely effective.
Streszczenie w języku angielskim
Abstract in English
Strony 83-88 ; 24 cm
Pages 83-88 ; 24 cm
Bibliographical references (page 87)
Bibliografia na stronie 87
Dostawca treści:: RCIN - Repozytorium Cyfrowe Instytutów Naukowych

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