English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The multiplication and performance of Tetrastichus brontispae parasite on Brontispa longissima coconut leaves disease in Kabupaten Ende Flores Brontispa longissima Gestro (Coleoptera: Chrysomelidae) is one of the important pests that attack the palm plants in Southeast Asia. There is a reported decline in the productivity of palm plants when the pest attack reaches 30-40% with 5% of the plants attacked dying. B. Longissima pest attacks plants at all stages of life, but its attack is most prevalent when plants reach the age of 4-5 years. The spread of pests B. Longissima has been reported in the district of Ende, Nangakeo and Ndona in 13 villages with a total area of 150 ha plantation consisting of 15,000 coconut trees included in the category of severe intensity of attacks.There have been attempted control measures with the release of natural enemies Tetratichus brontispae but not much success has been seen . This study aimed to find out: The dominant type of the parasite in the district of Ende. T. Brontispae were propagated and maintained in the laboratory using, augmentation techniques, conservation or disposal was to be done. Colonies of the propagated parasite T. brontispae were then released in the field. The factors causing T. Brontispae control failure, the population of B. longissima in the field, possibly the need for augmentation or conservation of T. brontispae and the right time to make the release of parasite in the field was important. This research is expected to be useful as a basis in formulating an appropriate control program, in order to control the pest B. longissima in the field. The experiment was conducted from January to June 2010 at Nangakeo, Ndona and Ende districts. Implementation of the research was divided into four stages: location survey, maintenance and multiplication of the pests B. longissima and T.brontispae parasite, parasite release and the evaluation of results. The results were; that there are three types of parasites, B.longissima coconut leaf pest in Ende (sub Ndona, Nangakeo and Ende) the eggs of the parasite Trichogrammatoideanana spp., the larvae and pupae of the parasite Tetrastichusbrontispae spp. and the ‘Asecodeshispinarum Boucek’. T. Brontispae parasite being the most dominant parasite in each district with 10% level of parasitization of larvae and pupae of 60-90%, biased sex male : female ratio. The pest capability of T.brontispae parasite in the laboratory was 6: 10 with a success rate of 90%. The decline in the influence of parasite performance was unsincronized between phases from the phase of the insect host parasite in the field, the availability of insect host and time of release as well as climatic conditions not being conductive.

agrica

KINERJA DAN PERBANYAKAN PARASITOID Tetrastichus brontispae PADA HAMA DAUN KELAPA : Brontispa longissima GESTRO (COLEOPTERA : CHRYSOMELIDAE) DI KABUPATEN ENDE-FLORES