Ảnh hưởng của giống cải và nhiệt độ đến đặc điểm sinh học của sâu kéo màng, Hellula undalis Fabricius (Lepidoptera: Crambidae)

2016 ◽  
Vol Nông nghiệp 2016 ◽  
pp. 193
Author(s):  
Trần Thanh Thy ◽  
Lê Văn Vàng ◽  
Nguyễn Lộc Hiền ◽  
Phan Thị Thanh Tuyền
Keyword(s):  
Hellula Undalis

scholarly journals The Effects of Extracts of Lantana camara (L.) and Azadirachta indica (A. Juss) on the Population Dynamics of Plutella xylostella, Brevicoryne brassicae and Hellula undalis on Cabbage

2012 ◽  
Vol 1 (2) ◽  
pp. 229 ◽  
Author(s):  
P. K. Baidoo ◽  
J. I. Adam
Keyword(s):  
Population Dynamics ◽  
Plant Extracts ◽  
Azadirachta Indica ◽  
Plutella Xylostella ◽  
Block Design ◽  
Petroleum Ether Extract ◽  
Brevicoryne Brassicae ◽  
Lantana Camara ◽  
Leaf Extracts ◽  
Hellula Undalis

<p>The effects of ethanolic extract of neem, <em>Azadirachta indica</em> (Meliaceae), seeds and petroleum ether extract of <em>Lantana camara</em> leaves (Verbenaceae) on the populations of three cabbage pests, <em>Plutella xylostella</em>, <em>Brevicoryne brassicae</em> and <em>Hellula undalis</em> were studied. The study was conducted between January and April 2008. Extracts of the two plants were sprayed on cabbage plants to control these pests. A standard synthetic chemical insecticide (Mektin) was used as reference product. The experiment was conducted in a randomized complete block design and each treatment was replicated four times. The effects of plant extracts on the population dynamics of the pests’ species, the level of infestation and yield were assessed. Significantly more of the pests infested the control plants than the treated plants (<em>P</em>&lt; 0.01). The mean weight of cabbage heads on the sprayed plots was significantly heavier than that of the control unsprayed plots. The use of <em>A. indica</em> seeds and <em>L. camara</em> leaf extracts increased yield by 37.05% and 25.80%, respectively. Spraying the cabbage plants with the plant extracts significantly reduced the numbers of pests compared with the control plants. The use of these plant extracts can be incorporated into an overall control programme of these pests.</p>

Sex pheromone analysis and effective attraction of males of the cabbage webworm, Hellula undalis, inhabiting the Mekong Delta of Vietnam

2020 ◽  
Vol 23 (4) ◽  
pp. 935-941
Author(s):  
Le Van Vang ◽  
Tran Thanh Thy ◽  
Duong Kieu Hanh ◽  
Trieu Phuong Linh ◽  
Masanobu Yamamoto ◽  
...  
Keyword(s):  
Sex Pheromone ◽  
Mekong Delta ◽  
Hellula Undalis ◽  
Effective Attraction ◽  
Sex Pheromone Analysis

scholarly journals Effet des extraits aqueux de Calotropis procera sur les principaux ravageurs du chou en culture au Sénégal

2020 ◽  
Vol 14 (5) ◽  
pp. 1600-1610
Author(s):  
Saliou Ngom ◽  
Toffène Diome ◽  
Bocar Diop ◽  
Mbacké Sembene
Keyword(s):  
Plutella Xylostella ◽  
Spodoptera Littoralis ◽  
Calotropis Procera ◽  
P Value ◽  
Aqueous Extracts ◽  
Hellula Undalis ◽  
Lepidoptera Pyralidae ◽  
Extraits Aqueux ◽  
Cabbage Pests ◽  
Lepidoptera Noctuidae

Au Sénégal, le chou est l’un des légumes les plus cultivés et consommés, de par son cycle relativement court (60-90 jours après repiquage) et sa possibilité d’être cultivé toute l’année. Cependant il est attaqué par plusieurs ravageurs tels que Plutella xylostella (L.) (Lepidoptera, Plutellidae), Hellula undalis (F.) (Lepidoptera, Pyralidae) et Spodoptera littoralis (B.) (Lepidoptera, Noctuidae). L’objectif de cette étude était de contribuer à la lutte contre ces ravageurs du chou en culture dans la zone des Niayes en utilisant les extraits aqueux à base de feuilles de Calotropis procera (Apocynaceae). L’étude a été menée sur 28 parcelles élémentaires dans la zone des Niayes (durant la période du 3 janvier au 22 mars 2019). Les formulations d’extrait de feuilles de C. procera utilisant comme solvant l’eau de robinet et l’eau de puits (ER et EP), appliquées à des temps différents le matin (ERM, EPM) et le soir (ERS, EPS) ont montré leurs efficacités sur les larves de P. xylostella et H. undalis. Par contre, les extraits ne sont pas efficaces sur S. littoralis (P-value= 0,672). En plus de leurs effets biocides, les extraits à base de feuilles de C. procera semblent accélérer la croissance des plants de chou. La nature du solvant et la période du traitement n’ont pas montré une différence significative.Mots clés : Biocide, Brassicassée, Niayes, lutte biologique English title: Aqueous extracts effect of Calotropis procera on the principal cabbage pests in culture in Senegal In Senegal, the cabbage is one of the most cultivated and consumed vegetables, from its relatively short cycle (60-90 days after road repair) and the possibility of being cultivated all the year. However it is attacked by several pests such as Plutella xylostella (L.) (Lepidoptera, Plutellidae), Hellula undalis (F.) (Lepidoptera, Pyralidae) and Spodoptera littoralis (B.) (Lepidoptera, Noctuidae). The objective of this study was to contribute on protect against cabbage pests in culture in the zone of Niayes by using the aqueous extracts containing sheets of Calotropis procera (Apocynaceae). The study was undertaken on 28 elementary pieces to in the zone of Niayes (during the period of January 3 at March 22, 2019). The formulations of extract using as solvent the water of tap and the water of well (ER and EP), applied to different times morning (ERM, EPM) and evening (ERS, EPS) showed their effectiveness on larvae of P. xylostella and H. undalis. On the other part S. littoralis was resistant to treatment (P=0,672) confirms it. In addition to their biocides effects, the extracts containing sheets of C procera seem accelerated the cabbage patches growth. The nature of solvent and the treatment period did not show a significant difference.Keywords: Biocide, Brassicasseae, Niayes, biological control

scholarly journals The cabbage webworm (Hellula undalis) on tickweed (Cleome viscosa) in Samoa

2011 ◽  
Vol 29 (1) ◽  
pp. 1 ◽  
Author(s):  
Adama A. Ebenebe ◽  
Saidi R. Achari ◽  
Nitesh Chand ◽  
Annas A. Krishna ◽  
Saula Baleisuva
Keyword(s):  
Insect Pest ◽  
Wild Plant ◽  
Larval Feeding ◽  
Main Role ◽  
Field Surveys ◽  
Pests And Diseases ◽  
Brassica Spp ◽  
Hellula Undalis ◽  
Cleome Viscosa

Cabbages (Brassica spp.) are important components of the diet of many South Pacific island people, but their production is often constrained by pests and diseases. Leaf-eating caterpillars, particularly Crocidolomia pavonana, Plutella xylostella and Hellula undalis, are the most important insect pest constraints in Samoa. In 2006, it was observed that H. undalis infests a wild plant, Cleome viscosa, in Samoa. Field surveys, laboratory and cage experiments were then conducted from 2007 to 2009 to investigate aspects of the ecology of H. undalis in Samoa. The study showed that H. undalis is present on C. viscosa throughout the year. Findings also suggest that parasitism of H. undalis in Samoa is either negligible or non-existent. Only Brassica rapa chinensis, Brassica oleracea capitata and C. viscosa were confirmed as hosts of H. undalis. Laboratory and cage experiments suggested that C. viscosa was more attractive for H. undalis larval feeding than the Brassica spp. However, overall indication from this study is that the main role of C. viscosa, under field conditions, is as source of recruitment of H. undalis onto cultivated hosts. We recommended that C. viscosa should be controlled in cabbage growing areas.

Studies on Biology of the Cabbage Webworm Hellula undalis F. (Lepidoptera, Pyraustidae)

1973 ◽  
Vol 74 (1-4) ◽  
pp. 1-6 ◽  
Author(s):  
K. H. Youssef ◽  
S. M. Hammad ◽  
A. R. Donia
Keyword(s):  
Hellula Undalis

scholarly journals First comprehensive contribution to the knowledge of the lepidopteran fauna of Gioia Tauro Plain, South Italy (Lepidoptera)

2021 ◽  
Vol 53 (2) ◽  
Author(s):  
D. Bonelli ◽  
S. Scalercio ◽  
T. Bonacci
Keyword(s):  
Natural Habitat ◽  
Point Of View ◽  
Light Traps ◽  
South Italy ◽  
Calabria Region ◽  
Insect Order ◽  
Uv Led ◽  
Hellula Undalis ◽  
One Year ◽  
First Time

In this paper, we investigated for the first time on the composition of nocturnal Lepidoptera of the Gioia Tauro Plain, Calabria region (South Italy). The main goal was to acquire information on the biodiversity of this insect order in an area little investigated and subject to strong anthropic pressures. The study was carried out for one year in 4 sites characterized by different habitats. Sampling was carried out about twice a month through the use of UV-LED light traps. In total, 791 specimens belonging to 97 species were collected. The species richness of the study area was rather low compared to a more natural habitat sampled near to the study area in previous years. However, we found species very interesting from a faunistic point of view. In detail, Morophaga morella (Duponchel, 1838) is a new record for the continental Italy. 15 species are new for the fauna of the Calabria region: Ornativalva tamaricella (Zeller, 1850), Cnephasia (Cnephasia) genitalana Pierce & Metcalfe, 1915, Euzophera lunulella (O. Costa, 1836), Hellula undalis (Fabricius, 1794), Raphimetopus ablutella (Zeller, 1839) Achyra nudalis (Hübner, 1796), Dioryctria mendacella (Staudinger, 1859), Ematheudes punctella (Treitschke, 1833), Endotricha flammealis (Denis & Schiffermüller, 1775), Oxybia transversella (Duponchel, 1836), Lamoria anella (Denis & Schiffermüller, 1775), Anania crocealis (Hübner, 1796), Evergestis isatidalis (Duponchel, 1833), Udea ferrugalis (Hübner, 1796), and Uresiphita gilvata (Fabricius, 1794).

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