(Mohammad and Mahmood, 1986), … Terramycin, tetracycline and chloramphenicol were most effective in reducing the size, weight and reproductivity of 1st-instar nymphs. Mustard aphid, Lipaphis erysimi, threatens the cultivation of the rapeseed-mustard (Brassica spp.) A. Khan and 2S. 2). Nymph (n=30) I instar . CAB Direct is the most thorough and extensive source of reference in the applied life sciences, incorporating the leading bibliographic databases CAB Abstracts and Global Health. However, the aphid species having cosmopolitan distribution exhibit holocyclic and anholocyclic life cycles, both at the same time in different geographic areas. ... For the turnip aphid (Lipaphis erysimi (Kaltenbach)), control may be required if there are more than 25 aphids per 10 centimetre shoot tip on 10-20 per cent of the examined plants (when plants are at the late flowering stage) 2. The nymphs (48-52hr old) of Lipaphis erysimi (Kalt.) On Cochlearia officinalis in the intertidal zone, on rosettes of young plants, or in flower … Gabi Krczal, Michael Wassenegger, in Handbook of Proteolytic Enzymes (Third Edition), 2013. Lipaphis erysimi (Kalt) is the most destructive pest. Particulars . Possibly this species belongs in either Tuberolachnus or Pterochloroides . Sxj ’s probability for second–fourth instars, pupa, male, and female ranged from 0.0 to 1.0 (Fig. Growth, development, and survival of the bertha armyworm, Mamestra configurata, fed leaves of treated canola in the laboratory were affected adversely at specific stages in the life cycle. An even more amazing feature of life cycles of most An adult female can live up to one month during which time she may give birth to 60-100 live nymphs. Host plants include cabbage, cauliflower, broccoli, Brussels sprouts, kale, kohlrabi, radish and turnip, as well as shepherd's purse, wild mustard and other cruciferous weeds. turnip aphid on radish at several temperatures throughout the year in India. Among biological parameters such as; fecundity, fertility, and egg hatching % of a predator, seven-spotted ladybird beetle were 143, 165 and 86, respectively. An aphid colony normally starts with a winged female that immigrates from another plant or field. Agarwala and Saha (1986) and Behera et al. It was found that the activity of catalase, glutathione peroxidase and superoxide dismutase increased significantly when compared with the control of the same age group, which indicated that these enzymes might be playing a significant role … Biological attributes and feeding potential of three dominant predators of Lipaphis erysimi (Kaltenbach) ... C. septempunctata, E. viridaureus and B. isaaci completed their life cycle in 68.5± 6.5 days, 47±2 and 41±2, respectively. Eggs are laid on leaves preferably on top shoots; Pupation takes place in white silken cocoons attached to the leaves; Life cycle is completed in 3-4 weeks. Oviposition and post oviposition periods were (32.0±1.45 and 2.9±0.27 days), respectively. The cabbage aphid belongs to the genus Brevicoryne. Results showed that the two-sex, age-stage life table-based net reproductive rate Most of the mortality in the treated group occurred at pupation and during pupal-adult development. Introduction: Aphids are the sucking insect pest which are major attacking pest in vegetable crops. The predators were multiplied on mustard aphids reared on mustard plants. Lachnus tropicalis (van der Goot) (= japonicus Matsumura) Apterae are shining brownish black; BL 3.8-5.3 mm. Lipaphis erysimi (Kaltenbach) Wingless adult turnip aphids are varying shades of green and have slightly darker spots on the dorsal surface of the abdominal segments in front of the cornicles. 1971. Winged females infest a crop and give birth to living young that can produce their own offspring … Head is pale-brown Fore wing is pale brown with dark purplish brown along costal end. 1966. Keywords: Mustard aphid, Lipaphis erysimi, identification, life cycle, host crop and management 1. Coccinella septempuctata was most predominant predatory species on mustard aphid and consumed maximum numbers of aphids throughout the life with different larval … Winged females are able to disperse to other plants, but produce fewer offspring. II instar . Generation after generation of wingless females survive one another until hot weather comes or maybe the plant on which they are living dies and then suddenly some of the females grow wings and fly off. Incidence of aphid during re productive stage of m ustard causes severe The cornicles of the cabbage aphid are relatively shorter than those of other aphids with the exception of the turnip aphid Lipap… Diaeretiella rapae (McIntosh). aphid, Lipaphis erysimiwere studied under laboratory conditions. Insecta Matsumurana 34(1):188 >> Lipaphis erysimi; Carrillo. The productivity of oilseed brassicas is severely affected by aphid pests. LC 50 as 28.55 µg cm-2 for L. erysimi and 29.22 µg cm-2 for M. persicae of aphid population was found due the application of bifenthrin. CAB Direct provides a convenient, single point of access to all of your CABI database subscriptions. III instar . Adults live for 15 - 18 days during the summer when temperatures are varied between 85� - 94� F. Lifespan was considerable longer at winter temperatures (55� - 68� F) and 1974. 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