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All Journal Jurnal Hortikultura Indonesia (JHI) JURNAL AGRONIDA

Otto Endarto

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Author-ID : 2474291

Agriculture, Biological Sciences & Forestry

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UTILIZATION OF KAOLIN FOR THRIPS PEST CONTROL IN CITRUS PLANTS Rudi Cahyo Wicaksono; otto endarto
JURNAL AGRONIDA Vol. 5 No. 1 (2019)
Publisher : Universitas Djuanda Bogor

Citrus is one of the most consumed fruits. The projected demand for citrus fruit in 2015 - 2019 increased by 0.52% / kg / capita / year. However, citrus fruit production fluctuates every year. The average production of citrus fruits in 2011 - 2015 decreased by 1.49% per year. Decreased quality and quantity are due to pest attacks. Thrips attack the very young flower and fruit phase by injuring the surface of the fruit skin. The study was conducted from June to December 2017, in Glagahagung Village, Purwoharjo District, Banyuwangi Regency. The study used a randomized block design with four treatments using kaolin, surround, organim, and non-controlling, each repeated five times. The results of the study provided information that the use of kaolin continuously can suppress thrips pests up to 89.87%, while surround and organim supress up to 85.06% and 77.71% respectively, and can improve the quality of citrus fruits. Keywords: Kaolin, Surround, Thrips

DAYA MANGSA PREDATOR Harmonia axyridis TERHADAP KUTU DAUN Mizus persicae PADA TANAMAN JERUK Otto Endarto; Susi Wuryantini
JURNAL AGRONIDA Vol. 5 No. 2 (2019)
Publisher : Universitas Djuanda Bogor

The research aims to determine the prey abilily and preferences of Harmonia axyridisagainst Mizus persicae on citrus. The study was conducted at the screen house and EntomologyLaboratory of the Research Institute for Citrus and Sub-Tropical Fruits, in January-March 2016.The test for prey ability used the first larval stage of H. axyridis to imago for 30 individuals in eacharena. Data were analyzed by counting of M. persicae which eaten per day from each stage, i.e.larva instar, and H. axyridis imago, as well as the average prey during their life cycle. The resultsshowed that the highest prey of H. axyridis occurred in instar larvae 4, which reached 428.3% ofis body weight, with a number of preys 9.81 ± 1.01 head / day. Preferences of H. axyridis in instarslarvae 1,2, and 3 were instar nymphs 1 from M. persicae, and for H. axyridis the instar larvae 4and imago preferred of instar nymph 4. H. axyridis had a life cycle with a range of 6.6 -9.7 days.The duration of egg stage of the H. axyridis was 3 days, the larvae consisted of 4 instars, theduration of the stage for each instar was 2.4 days for instar 1 and 2; 5 days for instar 3; 12 daysfor instar 4, and 18.5 days for imago.Keywords: Prey, predator Harmonia axyridis, Mizus persicae, citrus

Co-Authors Rudi Cahyo Wicaksono Susi Wuryantini

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