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Technical annual report 2000-01



Technical annual report 2000-01


Dept. of Regional Development, Primary Industry, Fisheries and Resources technical annual report; Department of Regional Development, Primary Industry, Fisheries and Resources technical and annual report; Reports; PublicationNT; Technical bulletin (Northern Territory. Dept. of Primary Industry and Fisheries) ; no. 295




Made available via the Publications (Legal Deposit) Act 2004 (NT).






Agriculture -- Northern Territory -- Periodicals; Fisheries -- Northern Territory -- Periodicals

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Dept. of Primary Industry and Fisheries

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Technical bulletin (Northern Territory. Dept. of Primary Industry and Fisheries) ; no. 295



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Technical Annual Report 2000/01 205 Two caterpillar species were present one which leaf-mines and another which chews the edges of the leaves, as observed in October. Both are as yet unidentified, but are not of economic importance. 13 June 2001 The trees were looking healthy. Plants were just beginning to produce new shoots but there was little insect activity. Almost no caterpillars were found although there was some insignificant damage from weevils, Polyphrades sp. and Myllocerus sp. (Coleoptera: Curculiondae). The bostrichid borer, Sinoxylon anale Lesne (Coleoptera: Bostrichidae) was active in dead and severed branches, and three examples of the cerambycid, Platyomopsis sp. (Coleoptera: Cerambycidae) were also found in dead branches. Discussion: Unlike previous years, there were no pest outbreaks this year. Platyomopsis was observed on a number of occasions, but was not considered to be a pest. Similarly the caterpillars Adoxophyes sp. (Lepidoptera: Tortricidae) were rare, and no noctuids (Lepidoptera: Noctuidae) were found. PROJECT: Arthropod Identification and Control Service Project Officers: D. Chin, G.R. Brown, E.S.C. Smith, G. R. Young, M. Hoskins and H. Brown Location: Territory wide Objective: To provide accurate advice on the identification and control of agricultural, horticultural and domestic arthropods to primary producers, government personnel, pest control operators and the general public. Background: The Branch provides an advisory service on entomological matters pertaining to agricultural, horticultural or domestic situations. Over the past few years, the demand for this service has increased dramatically as the number of horticultural producers has increased and as fruit trees in suburban gardens mature. The extension services provided by the Branch include phone enquiries on identification and advice on control of insects, grower visits, examination of specimens delivered to DPIF offices; talks provided to industry organisations, schools and the university; and presentations at departmental field days, rural, horticultural and agricultural shows. Results: The nature of the enquiry and the recommendations provided are recorded and entered into a database. The information recorded may be used for future planning of research and allocation of resources. During the year, the Branch received 2,215 enquiries (including 224 from the Katherine Branch). This represents an overall increase of 44.6% compared with the previous year. The proportion of the various client groups and the differences to the 1999/2000 period are shown in Table 1.