Species name. Although there were no significant differences in the intrinsic rate of increase (r), finite rate (λ), net reproductive rate (R0), and mean generation time (T) between the two populations, computer projection showed that the T. palmi population will increase faster when reared on B. oleracea than on P. vulgaris. Body and legs yellow, major setae light brown; antennal segments IV–V brown distally, VI–VII brown; fore wings pale. You do not currently have access to this article. Despite this variation, all members of Thrips genus have paired ctenidia on the tergites, and on tergite VIII these are postero-mesad to the spiracles, and they also lack ocellar setae pair I in front of the first ocellus. Some of these expanded distribution patterns probably occured more than 100 years ago, during the period of sailing ships, but the recent increase in air transport of horticultural produce is reflected in the increased distribution of other species, such as Scirtothrips dorsalis and Thrips palmi. THRIPIDAE - THRIPINAE. Antennae 7-segmented, IIIâIV slightly constricted at apex, VII short. Please check your email address / username and password and try again. Similar to but smaller than female; tergite VIII with marginal comb complete medially; sternites IIIâVII with narrow transverse pore plate. Another closely related species, T. alatus Bhatti, is known from India and Peninsular Malaysia (Mound & Azidah, 2009). 2013).Currently, it is one of the most economically important vegetable pests in southern China (Sun et al. This article is published and distributed under the terms of the Oxford University Press, Standard Journals Publication Model (. It furthers the University's objective of excellence in research, scholarship, and education by publishing worldwide, This PDF is available to Subscribers Only. There are 33 species of Thrips genus known from Australia, out of a total of 280 species worldwide (Mound & Masumoto, 2005). Thrips palmi Karny. Head wider than long, ocellar setae pair III small and arising just outside ocellar triangle; postocular setae pair I slightly longer than ocellar setae III. Thrips palmi Karny, 1925: 10Thrips clarus Moulton, 1928: 294 Thrips leucadophilus Priesner, 1936: 91 Thrips gossypicola Priesner, 1939: 41 Chloethrips aureus Ananthakrishnan & Jagadish, 1967: 381 Thrips gracilis Ananthakrishnan & Jagadish, 1968: 361. Tergite II with 4 lateral marginal setae; posterior margin of tergite VIII with complete comb of long slender microtrichia. Australian distribution . Sternites and pleurotergites without discal setae, pleurotergal sculpture lines without microtrichia. Similar to but smaller than female; tergite VIII with marginal comb complete medially; sternites III–VII with narrow transverse pore plate. Don't already have an Oxford Academic account? Female macroptera. Information about Thrips palmi diagnosis, including distribution and treatment advice Eggs are laid in young leaves, flowers and fruits; they hatch in 3-4 days and the nymphs look like adults except that they are about half the size and without wings. Zootaxa 2023: 55-68.http://www.mapress.com/zootaxa/2009/f/zt02023p068.pdf. Metanotum with irregular longitudinal lines converging to posterior margin, with curving transverse lines at anterior; median setae arising behind anterior margin, campaniform sensilla present. Their small size and predisposition towards enclosed places makes them difficult to detect by phytosanitary inspection, while their eggs, laid inside plant tissue, are well-protected from pesticide sprays. Copyright © 2020 OzThrips. Originally from Asian tropics but now widespread in tropical countries, including Australia. Our results demonstrate that population projection based on life table data is potentially an important tool in pest management. Female macroptera. Fore wing first vein with 3 (or 2) setae on distal half, second vein with row of about 15 setae. If you originally registered with a username please use that to sign in. The genus Thrips (Thysanoptera, Thripidae) in Australia, New Caledonia and New Zealand. Many of these species have the antennae clearly 7-segmented, whereas others have 8 segments. Distribution details in Brunei Darussalam of Thrips palmi (THRIPL) Current pest situation evaluated by EPPO on the basis of information dated 1992: Present, widespread From CABI Pest map 480 (1998): Present, no details Thrips palmi are about 1 mm long, narrow, yellow with two pairs of wings (Photo 5). Moreover, some species have sternal discal setae, whereas other species have only marginal setae on the sternites. The melon thrips, Thrips palmi Karny, which is a serious economic pest with a world-wide distribution pest, was introduced into China in the 1970s (Wang et al. Sternites and pleurotergites without discal setae, pleurotergal sculpture lines without microtrichia. Register, Oxford University Press is a department of the University of Oxford. Originally from Asian tropics but now widespread in tropical countries, including Australia (Northern Territory and Queensland). Some species have two complete rows of setae on the fore wing veins, whereas others have the setal row on the first vein more or less widely interrupted. Don't already have an Oxford Academic account? Although T. palmi is very similar in structure to the common Holarctic species, T. flavus Schrank, it is distinguished by ocellar setae pair III being close together behind the first ocellus and within the ocellar triangle. Distribution data General distribution. Mound LA & Masumoto M. 2005. The western flower thrips, Frankliniella occidentalis, has spread until it now has a worldwide distribution, and is the primary vector of plant diseases caused by tospoviruses. Biological data Life history. The fecundity (F) of T. palmi reared on B. oleracea (159.71 offspring/female) was significantly higher than in females reared on P. vulgaris (F = 122.98 offspring/female) despite the higher proportion of female adults that emerged on P. vulgaris.
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