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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Occurrence and control of coconut leaf beetle in China. Coconut beetle management in Hainan Island, China: After treated with the extracts of C.
Each process of the tail-shovel bears a large, sharp, curved spine at the inner angle, and a series of five or six setae along the dorsal and ventral margins. As the spear unfurls, it moves on to its next victim. Large areas of the leaflets break off leaving the foliage partially skeletonized and its effective photosynthetic tissue may in extreme cases be reduced to virtually nothing.
There are less bright surfaces that reflect sunlight.
Three replicates of brojtispa treatment were conducted, and all replications were performed at the same time. Pests of crops in Indonesia revised. Palms throughout the World.
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New Longissiima Nouvelle Caldonie. When year-old trees start to fruit, traces of previous infestation are still visible, but there is generally no further damage. No studies have been conducted on life cycle and other aspects the biology of this pest in Sri Lanka.
The head bears three processes, one median and one on each side. Each lateral process is fleshy, broadest basally, pointed apically, pre-apically bearing small blunt spine.
Brontispa longissima Gestro or coconut leaf beetle entered into the Philippines through the shipments of ornamentals. Coconut farmers, decision makers, researchers, and local government units are expected to benefit from this project. Introduction and successful rearing of exotic parasitoids of Brontispa in of captivity in the Maldives.
Trichlorfon eliminated Brontispa from isolated areas of young palms in Western Samoa Bourke, Two cryptic species in Brontispa longissima Coleoptera: 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
Damage caused by Brontispa is considered serious enough for chemical control measures to be used on young palms. The response of B. There is a serious risk of further spread of the pest to other islands in Ari Atoll, and to other atolls in the country.
Under prolonged outbreak conditions, such as those which occurred in South Sulawesi for several years, fruit-shedding takes place, newly-formed leaves remain small, the trees appear ragged and may ultimately die. It is also worth noting that botanical extracts of C. Continuing to use www.
The study on biological characteristics of Brontispa longissima Gestro Coleoptera: Effects of temperature on Brontispa longissima population growth.
The battle against Brontispa continues
Coconut plantations in South Sulawesi, Indonesia, which were in poor condition due to poor soil conditions, infestations by aleurodids and inadequate maintenance, were more susceptible to attack by B. Outlook on Agriculture 7: Extract powders were diluted with acetone for laboratory bioassays or in distilled water for semi—field trials.
Life history traits and damage potential of an invasive pest Brontispa longissima Coleoptera: Strong monsoon winds reduce the influence of parasitic wasps. Eulophidae as an imported biological control agent of Brontispa longissima Gestro Coleoptera: Host plants and lngissima enemies for the coconut leaf beetle, Brontispa longissimain Shenzhen.
The remainder of the wing cover is black French Few infested palms were found on Dhidhoofinolhu and Dhigurah and it appears that the beetle reached the island at a later stage. All of these differences were perhaps caused by the various secondary substances in different botanical extracts.
Some varieties from the Ivory Coast and Fiji also show high degrees of resistance Stapley, a grontispa, Economic insects and biological control in the British Solomon Islands. Hispinae in New Caledonia. Coconut has not been an important industrial crop to the country.