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Print This Article 206 AGRIVITA Journal of Agricultural Science. 2019. 41(2): 206–212 AGRIVITA Journal of Agricultural Science www.agrivita.ub.ac.id Identification, Distribution and Abundance of Scale Insect Associate with Several Clones of Durian (Durio zibethinus Merr.) Affandi 1*), Dhasa Lististio 2), Panca Jarot Santoso 1), Ellina Mansyah 1) and Dewi Sartiami 3) 1) Indonesian Tropical Fruits Research Institute, Solok, West Sumatra, Indonesia 2) Faculty of Agriculture and Animal Husbandry, Islamic University of Sultan Syarif Kasim, Pekanbaru, Riau, Indonesia 3) Department of Plant Protection, Bogor Agricultural University, Bogor, West Java, Indonesia ARTICLE INFO ABSTRACT Keywords: Durian contributes a high economic value in agribusiness of horticultural A. vitis product. However, recently the attack of scale insect has devastated Distribution and Abundance most of pre-production trees in Indonesia. A research with objective Durian to know the basic information about the correct species, distribution and population abundance was done at Aripan Research Station of Article History: Indonesian Tropical Fruits Research Institute from July to August Received: December 12, 2018 2018. A proper identification and observation method were used to Accepted: March 26, 2019 know the species identity, distribution and abundance of the insect. Biotic and abiotic factors in each clone such as nutrients content, ) * Corresponding author: tree morphological characteristic, light intensity, temperature and E-mail: [email protected] relative humidity under canopy were analysed. The result showed that Aulacaspis vitis Green was a scale insect identified associating with durian leaves. Clone Bintana and Sikapal were the most and the less preferred with the intensity of damage was 88.60 % and 38.30 %, respectively. Nutrient content especially nitrogen and water as well as canopy morphology were simultaneously the most contributed in the preference of a certain clone. The pest was preferred to clump in the East cardinal direction and no significant difference between upper and lower part of the tree including within and outside of the canopy. INTRODUCTION its high price. This high price is most possibly caused by little availability of fruit in the market. Kementerian The health awareness of society is getting Pertanian (2017) reported that durian harvested increased. More people demand for food which area and productivity declined significantly from year contributes their body fitness. Fortunately, durian has of 2013 to 2016 as many as 20.35 % and 7.27 %, potential to be developed to fulfil that expectation. respectively. That condition also rendered a negative Durian contains most nutrients needed for the human impact to the decreasing of durian consumption that health such as carbohydrate, protein, lipid, vitamins only reach 1.10 kg per capita per year. and minerals (USDA-ARS, 2018). It consists of high To contribute in both, advance health antioxidant, a compound that inhibits oxidation. and economic value for Indonesian society, the Oxidation is a chemical reaction that can produce expansion of planting area to increase durian fruit free radicals which lead to chain reactions that may production is inevitable needed. However, recently damage the cells of organism called cancer (Aziz new planting durian trees were devastated by scale & Mhd Jalil, 2019). Those nutrients give positive insect which attacked leaves. The invaded leave impact to human health. will exhibit yellow spot due to the cell liquid was Durian contributes high economic value in sucked. Further, all part of the leaves will turn into Indonesia agribusiness of tropical fruits product. Up yellow coincide with insect population development. to now durian is categorized as an exotic fruit due to Along with huge insect population, the leaves will ISSN: 0126-0537 Accredited First Grade by Ministry of Research, Technology and Higher Education of The Republic of Indonesia, Decree No: 30/E/KPT/2018 Cite this as: Affandi, Lististio, D., Santoso, P. J., Mansyah, E., & Sartiami, D. (2019). Indentification, Distribution and Abundance of Scalee Insect Associate with Several Clones of Durian (Durio zibethinus Merr.). AGRIVITA Journal of Agricultural Science, 41(2), 206–212. http://doi.org/10.17503/agrivita.v41i2.2162 207 Affandi et al.: Scale Insect Properties on Durian in Indonesia................................................................................. fall down remaining trunk, branch and twig only. To T-test analysis was used to know the avoid failing in escalation of durian planting area, an significant different between each distribution effective and efficient 7 control action must be done. parameter. Meanwhile, Analysis of Varian (ANOVA) The basic information about an accurate and Honest Significant Different (HSD) test were identification, distribution and abundance of scale utilized to know the abundance significant different insect which assail durian including biotic (tree of scale insect among observed clones. morphology, nutrients and water content) and a-biotic Biotic (tree morphology) and a-biotic (temperature, (temperature, relative humidity, light intensity) factors relative humidity, light intensity) factors were recorded are needed for succeeding a pre-emptive and during the observation. Nutrients and water content reactive strategic control. of each observed clones were also analysed. Specifically, this research aimed to investigate RESULTS AND DISCUSSION a definite identity of scale insect which bombards durian including the distribution and abundance. Scale Insect Associate with Durian Leaves Based on adult female morphological MATERIALS AND METHODS characters, the armored scale which attacked D. The study was conducted in Aripan Research zibethinus identified as A ulacaspis vitis Green Station of Indonesian Tropical Fruits Research complex. This species complex associated with durian Institute from July to August 2018, located at Aripan leaves and well known as polyphagous, cryptic and Village, X Kota Singkarak Sub-district, Solok District, invasive species (Andersen et al., 2010; Beardsley Jr & West Sumatra Province. The elevation is 457 m above Gonzalez, 1975; García Morales et al., 2016; McClure, sea level (asl) and the topography is little sloppy. The 1990; Miller & Davidson, 2005; Miller, D. R., Miller, G. climate is wet low-land with rain in every 4 - 5 days L., Hodges, & Davidson, 2005; Rehmat, Anis, Khan, especially during month of October to March. Fatma, & Begum, 2011; Suh, 2017). The species of The scale-infested samples of durian leave genus Aulacaspis are affiliated with various plants were collected from orchards then brought to the and commonly feed on woody trees (Takagi, 2015). laboratory for next treatment. In the laboratory, the However, several species of this genus are known to specimen attached on the leaves was put inside a be economically important pests on ornamental plants bottle jar with ethanol 70 % contain. The bottle jar (Miller, D. R., Miller, G. L., Hodges, & Davidson, 2005; was tightly covered then sent to Plant Protection Watson & Marler, 2014). The distribution of A. vitis Department of Bogor Agricultural University for involved Asia including in Sumatra, Java and Oceania species identification. The specimens were slide- (Green, 1899; Green, 1904). The species was mounted for identification using 10 % sodium characterized on slide mounted as follows: prosoma hydroxide for clearing, dehydration in alcohol, and swollen and widest at mesothorax (A), lateral tubercles Canada balsam (Sirisena, Watson, Hemachandra, situated well anterior to anterior spiracles (B), posterior & Wijayagunasekara, 2013). Then, the mounted spiracles not associated with spiracular pores, gland specimen was identified following taxonomical spine and macroduct absent from thorax and head, published descriptions and keys (Suh, 2017; Watson, pygidium with median lobes zygotic with no satae and 2002; Williams & Watson, 1988). spine between their bases (C, D), abdominal segment Twelve clones of durian were planted with VI bearing 1 or 2 submedian macroduct, pores situated planting distance of 8 x 8 m2. Each clone was prominence between pygidial lobes well developed (E) cultivated 7 trees in a row. The distribution and (Wei, Jing, & Zhang, 2016) (Fig. 1). abundance of scale insect were monitored from July Distribution and Abundance of Scale Insect to August 2018 at the middle of the row. Three trees No single factor affects distribution and abun- were used as sample for each clone and each tree dance of scale insect on durian. Biotic and a-biotic was utilized as replication. Subjective percentage factors simultaneously influence the process of asso- of scale insect infested leaves was counted every ciation, development and distribution within the plant. 3 days. An infested leaf was defined as at least five The distribution of A. vitis spreads evenly in upper dots of scale insect colony existed on each leave. The and lower part of the tree including outside and within distribution was also determined by cardinal direction of plant canopy except based on cardinal direction (East and West), upper and lower part of the tree, whereas the insect preferred in East part of the tree within and outside of the canopy. (Table 1). Copyright © 2019 Universitas Brawijaya 208 Affandi et al.: Scale Insect Properrties on Durian in Indonesia.............................................................................. Fig. 1. Key character to genus A. vitis which associated with durian leaves Table 1. Distribution of A. vitis on different cardinal direction, vertical and horizontal niche Distribution (%) No. Clones Cardinal direction Vertical distribution Horizontal distribution West East Upper Lower Outside Inside 1. Kalumpang 34.87 43.77 44.73 33.90 39.17 36.92 2. Sukun 19.73 27.13 25.67 21.20 16.17 31.08 3. Matahari 31.33 47.27 35.33 43.27 34.67 42.50 4. Sunan 38.30 46.80 44.53 40.57 53.00 34.42 5. Sijantung kampar 29.23 34.27 36.47 27.03 42.17 22.25 6. Selat 28.97 39.30 37.57 30.70 31.92 33.58 7. Sitokong 32.83 43.80 35.90 40.73 35.42 43.33 8. Petruk 36.03 46.07 50.67 31.43 42.92 37.75 9. Sikapal 17.00 21.30 18.57 19.73 22.58 13.00 10. Ginting 21.47 28.27 24.63 25.10 17.83 30.00 11.
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