Hispid beetles Brontispa longissima are palmivorous insects (Creighton , Lever , in He et al. /06). The larvae and adults are. The coconut hispid beetle Brontispa longissima (Gestro) was accidentally introduced into Western Samoa in Consequently in several beneficial . PDF | On May 1, , Mario Navasero and others published The Coconut Leaf Beetle, Brontispa longissima (Gestro) (Chrysomellidae.
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Nadarajan L; Jayaraj S, Annual Report of longiseima Department of Agriculture, A total area of 3. Moreover, insecticide resistance has developed in B.
The survey confirmed that the beetle had spread from the known distribution range Fenfushi, Tholhufushi, Nalaguraidhoo, Dhiffushi, Maamigili and Ariyadhoo to islands further eastwards Dhidhdhoo and Dhidhoofinolu and Dhigurah. A lateral process is a conical structure projecting horizontally nearly from the middle of the margin, except in the fifth, sixth and seventh segments, in which they appear to arise more from the posterior part.
Hispine Pests of Palms
The remainder of the wing cover is black French Percentage mortality was recorded after 72 hours; longossima that showed no response with head movements or exhibited peristaltic contraction when touched with a fine brush were scored as dead.
Fruits Paris44 1: Their colour varies geographically from reddish-brown in Java, to almost black in the Solomon Islands and Irian Jaya. However, the impact of the pest is as much feared for its direct impact on the tourist industry: Metarhizium anisopliae is available in Sri Lanka.
The control by insecticides of Brontispa longissima Gestro Coleopt.
Brontispa | Hispine Pests of Palms
Coconut has not been an important industrial crop to the country. For an illustration please see: Further, it is noted that the stage of the damage, symptoms and morphology of the pest reported as P. The larva is about the same length as the egg, but about 0.
The natural enemies listed here and some other new natural enemies which are highly effective in controlling B. Plant materials Celosia argenea L.
Brohtispa cardboard box containing the parasites in a dormant phase of development was hand-carried by the TCDC specialist from Viet Nam brontlspa Singapore to Maldives on 5 December. Forest Ecology and Management. The Chrysomelidae of Tahiti Coleoptera. There are 4 small spinules on the lower ridge more widely spaced than those on the upper ridge. Palms weakened by attack are more susceptible to drought and disease Waterhouse and Norris, Brontispa longissima coconut hispine beetle ; adult, head and pronotum.
Biological activity of the essential oil from the leaves of Piper sarmentosum Roxb.
Brontispa longissima (coconut hispine beetle)
Biological control of the coconut hispid and a survey of fruit flies in American Samoa. Moore Kawazu et al. Report of investigations into the infestation of coconut palms in American Samoa by the coconut hispid beetle Brontispa longissima and recommendations on quarantine procedures for Western Samoa. The parasite became established but the impact of this introduction has not been recorded O’Connor, Brontispa attacks palms of all ages, although it is most damaging to young palms in nurseries and for the first years after planting out in the field, especially in dry areas.
For some smaller coconut trees and ornamental plants nearby, some sort of basal application of systemic insecticides is used. The results showed that T.
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Bulletin of Entomological Research Several physiological races occur, as evaluated by hospitality to the parasite Tetrastichus brontispae Mo, Occurrence of Brontispa longissima Gestro in Hong Kong. Chabaud, Rhapis excels Thunb.
This follows international protocols to ensure that the only the desired species is imported and used for mass rearing in the recipient country. Furthermore, based on the survey and the available literature, the team concluded that only one species of Brontispa cause damage to the coconuts and other palms species in the Maldives.
HTM [Accessed 12 Decemeber ].
This results in all immigrant beetles becoming concentrated on those palms which do have a vulnerable frond, and the relatively small size of the fronds renders the damage more devastating. British Solomon Islands Agricultural Gazette 3 4: