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Marheni
Program Studi Agroekoteknologi Fakultas Pertanian, USU, Medan
Agriculture, Biological Sciences & Forestry

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DAYA PREDASI DAN RESPON FUNGSIONAL Curinus coeruleus MULSANT (COLEOPTERA; COCCINELIDE) TERHADAP Paracoccus marginatus WILLIAMS DAN GRANARA DE WILLINK (HEMIPTERA;PSEUDOCOCCIDAE) DI RUMAH KACA Tri Yaninta Ginting; Darma bakti; Marheni
Jurnal Pertanian Tropik Vol. 4 No. 3 (2017): JURNAL PERTANIAN TROPIK
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (150.427 KB) | DOI: 10.32734/jpt.v4i3.3093

Abstract

Predation ability and functional respons of Curinus coeruleus Mulsant (Coleoptera ; Coccinelide) To Paracoccus marginatus (Hemiptera ; Pseudococcidae) in a greenhouse. The objective of the research was to know the predation ability of C. coeruleus to P.marginatus and functional response. This research was conducted from February to April 2017 in the greenhouse Faculty of Agriculture, University of Sumatera Utara Medan. The method used was Completely Randomized Design with and was held in 2 periods. The first period was Predation Ability Test and the second was the Functional response test. In Predation Ability Test there were one imagoes of C. coeruleus male and female which test with P. marginatus larvae instar II and instar III. In the Functional response test, there were one imagoes of C. coeruleus male and female which test with P. marginatus larvae instar II (from previous predation ability) with each of P. marginatus larvae differences was 5, 10, 15 and 20 P.marginatus imagoes. The results of this research showed that the highest Predation Ability percentage was showed on C. coeruleus female with 57.5% and the lowest was showed on C. coeruleus male with 20%. in Functional response test of C. coeruleus was showed on type I and low R with 0.5375.
Uji Tipe dan Ketinggian Perangkap untuk Mengendalikan Penggerek Buah Kopi Hypothenemus hampei Ferr. (Coleoptera : Scolytidae) di Desa Pegagan Julu II Kecamatan Sumbul Kabupaten Dairi Winda Nuraini Situmorang Situmorang; Marheni; Ameilia Zuliyanti Siregar
Jurnal Pertanian Tropik Vol. 5 No. 1 (2018): JURNAL PERTANIAN TROPIK
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (412.81 KB) | DOI: 10.32734/jpt.v5i1.3143

Abstract

Coffeeberry borer (Hypothenemus hampei) is one of the dominant pests that are difficult to control. This research was conducted to determine the effectiveness type and height of trap to control coffee berry borer in Sumbul, Dairi. The method used Factorial Randomized Block Design (RBD) which consisted of 2 treatments factor and four replications. The first factor was a type of trap (single funnel trap, multiple funnel trap, and mineral bottle) and the second factor was the height of trap (60; 120; 175; and 200 cm). The results showed that the type, height, and interactions were significant by coffee berry borer trapped. The best trap used by the mineral bottle with a height of 60 cm is 2.75 beetles. The type was of trap significant by the number of insects trapped and residue of attractant while height and interaction were nonsignificant. The best trap of insects trapped was a mineral bottle with height 175 cm is 21.8 individuals and the highest insect consisted of Formicidae amounted to 231 individuals with the residue of attractant is 0.73 ml.
Co-Authors Ameilia Zuliyanti Siregar Darma bakti Tri Yanita Ginting Winda Nuraini Situmorang Situmorang