scholarly journals Reproduksi, Fekunditas dan Lama Hidup Tiap Fase Perkembangan Plutella xylostella (Lepidoptera : Ypnomeutidae) pada Beberapa Jenis Tumbuhan Cruciferae

Agrikultura ◽  
2017 ◽  
Vol 28 (1) ◽  
Author(s):  
Nenet Susniahti ◽  
Tarkus Suganda ◽  
Sudarjat Sudarjat ◽  
Danar Dono ◽  
Andhita Nadhirah
Keyword(s):  
Survival Rate ◽  
Brassica Oleracea ◽  
Growth Phase ◽  
Plutella Xylostella ◽  
Diamondback Moth ◽  
Ornamental Plants ◽  
Alternative Host ◽  
Diadegma Semiclausum ◽  
Rorippa Indica ◽  
Whole Life Cycle

ABSTRACTReproduction, fecundity and period of each growth phase of Plutella xylostella on some species of crucifersPlutella xylostella L. is one of major pests of cabbage (Brassica oleracea). P. xylostella, also known as diamondback moth, is an oligophagous with limited host only a crucifers. The pest often causes damage on the plant in the low to high altitude of the land. It is able to attack cabbage leaf from seedling to harvesting. An alternative controlling method that can be done is by using potential parasitoid, Diadegma semiclausum. Its application can be done using conservation technique through environment modification such as planting ornamental plants as parasitoid food source and alternative host for P. xylostella. The research aimed to find alternative host for P. xylostella. Experiment was conducted at greenhouse of Department Plant Pests and Disease, Faculty of Agriculture, Universitas Padjadjaran. Experiment was carried out by observation method using Randomized Blocked Design consisted of five treatments and four replications. The result demonstrated that Rorippa indica and Cardamine hirsuta were alternative host for P. xylostella. The average number of eggs laid on R. indica and C. hirsuta were 226.75 and 216.25 eggs, respectively. Survival rate of P. xylostella infested on R. indica was 32.50% whereas the survival rate of P. xylostella infested on C. hirsute was 28.75%. It can be concluded that P. xylostella was able to spend its whole life cycle on both plants.Keywords: Crucifers, Fecundity, Growth phase, P. xylostella, ReproductionABSTRAKPlutella xylostella L. merupakan salah satu hama utama kubis (Brassica oleracea). P. xylostella, juga dikenal sebagai Diamondback moth, yang bersifat oligofag dengan inang terbatas hanya pada tanaman kubis-kubisan. Hama ini sering menyebabkan kerusakan tanaman pada dataran rendah dan tinggi. Hama ini dapat menyerang pertanaman kubis pada saat bibit sampai panen. Sebuah metode pengendalian alternatif yang bisa dilakukan adalah dengan menggunakan parasitoid, Diadegma semiclausum. Penerapannya dapat dilakukan dengan menggunakan teknik konservasi melalui modifikasi lingkungan seperti menanam tanaman hias sebagai sumber pakan untuk parasitoid dan inang alternatif untuk P. xylostella. Penelitian ini bertujuan untuk menemukan inang alternative dari P. xylostella. Percobaan dilakukan di rumah kaca Departemen Hama dan Penyakit Tumbuhan, Fakultas Pertanian, Universitas Padjadjaran. Percobaan ini dilakukan dengan metode observasi menggunakan RancanganAcak Kelompok yang terdiri dari 4 perlakuan dengan 4 ulangan. Hasil penelitian menunjukkan bahwa Rorippa indica dan Cardamine hirsuta merupakan inang alternatif bagi P. xylostella. Rata-rata jumlah telur yang diletakan pada R. indica dan C. hirsuta adalah 226, 75 dan 216,25 butir. Kelulusan hidup P.xylostella yang di-infestasikan pada R. indica adalah 32,50% dan pada C. hirsuta adalah 28,75%. serta pada kedua jenis tanaman tersebut, P.xylostella dapat menyelesaikan seluruh siklus hidupnya.Kata Kunci : Cruciferae, Fase perkembangan, Fekunditas, P. xylostella, Reproduksi

EKSPLORASI DAN IDENTIFIKASI PARASITOID HAMA Plutella xylostella PADA TANAMAN KUBIS Brassica oleracea

AGRICA ◽  
2020 ◽  
Vol 7 (2) ◽  
pp. 111-121
Author(s):  
Yustina Maria Silvia Wonga Puu
Keyword(s):  
Brassica Oleracea ◽  
Plutella Xylostella ◽  
Species Abundance ◽  
Parasitoid Species ◽  
Diadegma Semiclausum ◽  
Cotesia Plutellae ◽  
Species Being ◽  
Environment Condition

This study aims at exploring and identifying parasitoid Plutella xylostella pest on cabbage plants Brassica oleracea in Nduaria Village and finding out the most dominant parasitoid associated with Plutella xylostella pest. Observation variables used included identification of parasitoid species being parasitic in each stage of Plutella xylostella pest life found in the field, parasitoid species abundance and domination of parasitoid. The result of exploration in three sub-villages of NduariaVillage indicated that there were three species of the parasitoid, namely eggof parasitoid Trichogrammatoidae cojuangcoi, the larva of parasitoid Diadegma semiclausum and Cotesia Plutellae. The dominant parasitoid is Diadegma semiclausumwith the value of 0,11. The most abundance in parasitoid larva Diadegma semiclausum is 5,7%. Damage intensity caused by Plutella xylostella was categorized as medium damage intensity of>25-?50%, and this kept rising along with the age of larva and population as well as supporting environment condition due to Plutella xylostella resistance to the pesticide.

Genetic sources for forage kale breeding

2021 ◽  
pp. 7-7
Author(s):  
А.М. Артемьева
Keyword(s):  
Brassica Oleracea ◽  
Plant Genetic Resources ◽  
Diamondback Moth ◽  
Ornamental Plants ◽  
High Genetic Diversity ◽  
North West ◽  
The North ◽  
Mass Proportion ◽  
Livestock Feeding ◽  
Brassica Oleracea L

Листовая капуста, объединяющая две группы разновидностей в составе вида капуста огородная (Brassica oleracea L.), имеет многоцелевое использование: в качестве ценного сочного корма для всех видов сельскохозяйственных животных и птицы, а также пищевое и декоративное. Широкое генетическое разнообразие культуры структурировано в 18 агроэкологических сортотипов. В последние годы культура в качестве кормовой незаслуженно забыта в России. Настоящая статья посвящена изучению хозяйственно ценных признаков 46 образцов листовой капусты из мировой коллекции генетических ресурсов ВИР им. Н. И. Вавилова при выращивании в Северо-Западном регионе РФ (г. Пушкин) в 2014–2020 годах. Установлены источники признаков продуктивности (массы растения, доли, высоты и диаметра стеблей, числа листьев, ветвистости): Schnitt Gelber Butter, Максилла, Lacta, Col Forrajera, местный сорт Черногории к-384 (урожайность 132–180 т/га при размещении 30 тыс. растений на 1 га). Выявлена устойчивость или высокая толерантность изученных сортообразцов листовой капусты к поражению болезнями (килой, пероноспорозом, альтернариозом, сосудистым бактериозом). Установлено, что к листогрызущим вредителям (капустной моли и капустной совке, а также к капустной мухе) устойчивы главным образом курчаволистные сорта различного происхождения и местные плосколистные сорта из Испании и Абхазии. Выделены источники высокого содержания аскорбиновой кислоты и пигментов (хлорофиллов, каротиноидов, антоцианов): главным образом местные и тёмноокрашенные сорта, включая сорт пальмовидной капусты с тёмно-зелёными листьями и гибрид листовой и брюссельской капусты с тёмно-фиолетовыми листьями. По комплексу ценных признаков выделены старый российский сорт Мозговая синяя сиверская, испанский местный сорт Berza alta, немецкий курчаволистный сорт Gruner halbhoher. Кормовая капуста заслуживает возвращения в рацион животных и, соответственно, расширения площадей её возделывания в РФ. Brassica oleracea L. convar. acephala (DC.) Alef. and B. oleracea L. convar. fruticosa (Metzg.) Alef. can be used as a valuable fresh forage for livestock and poultry, food or ornamental plants. High genetic diversity of these crops is represented by 18 genotypes adapted to various environments. Unfortunately, over the last years these plants were not used in livestock feeding. The report deals with economically important traits of 46 kale genotypes obtained from the N. I. Vavilov All-Russian Institute of Plant Genetic Resources (VIR). The crop was cultivated in the north-west of Russia (Pushkin) in 2014–2020. Such genotypes as Schnitt Gelber Butter, “Maksilla”, Lacta, Col Forrajera, and k-384 had the best characteristics (plant mass, proportion, height and diameter of stems, leaf number and lateral development), leading to productivity of 132–180 t ha-1 when seeding 30 thousand plants per 1 ha). Genotypes showed high resistance to various diseases (clubroot, mildew, Alternaria leaf spot, black rot). Curly kale as well as genotypes from Spain and Abkhazia had high tolerance to diamondback moth, cabbage moth, and cabbage fly. The sources of high content of ascorbic acid, chlorophylls, carotenoids, and anthocyanins were identified: mainly local dark-colored varieties. “Mozgovaya sinyaya siverskaya”, Berza alta, Gruner halbhoher had a number of economically important traits. Kale is recommended for livestock feeding, and therefore the area of its cultivation should be increased in Russia.

scholarly journals Development and reproduction of Diadegma semiclausum (Hymenoptera Ichneumonidae) on diamondback moth Plutella xylostella (Lepidotera Plutellidae)

2008 ◽  
Vol 61 ◽  
pp. 322-327 ◽  
Author(s):  
D. Khatri ◽  
Q. Wang ◽  
X.Z. He
Keyword(s):  
Plutella Xylostella ◽  
Diamondback Moth ◽  
Developmental Period ◽  
Fourth Instar ◽  
Pupal Weight ◽  
Diadegma Semiclausum

This study investigated the development emergence and mating of Diadegma semiclausum Hellen an important parasitoid of diamondback moth in the laboratory at 21 1C and 5060 RH with a photoperiod of 1212 h (lightdark) The parasitoids developmental period was significantly shorter and pupal weight significantly higher if their mothers parasitised the fourth instar larvae of DBM (P

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