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PEMANFAATAN DAUN Theprosia vogelii DALAM PENGENDALIAN HAMA Sitophilus zeamays (Coleoptera : Curculionidae) Yustina Maria Silvia Wonga Puu
AGRICA Vol. 13 No. 1 (2020): June
Publisher : Agriculture Faculty of Flores University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (403.595 KB) | DOI: 10.37478/agr.v13i1.381

Abstract

Sitophilus zeamays (Coleoptera: Curculionidae) is one of the pests that damage the corn kernels in storage so that it is damaged into corn powder. Control efforts that can be done is to use plant-based insecticides from Theprosia vogelii plants that contain rotenoid compounds so that they can cause pest mortality. The purpose of this study was to determine the effectiveness of Theprosia vogelli leaves in controlling Sitophilus zeamays in storage. The study was conducted at the Laboratory of the Faculty of Agriculture, University of Flores. The design used was a Completely Randomized Design (CRD) consisting of 5 treatments namely T0 = 0 gram (control), T1 (4 gram T. vogelii leaf powder), T2 (8 gram T. vogelii leaf powder), T3 (12 grams T. vogelii leaf powder) and T4 (16 grams of T. vogelii leaf powder). The observation variable was the mortality of the Sitophilus zeamays pest. The results showed that a dose of 16 grams of T. vogelii leaf powder caused a mortality of S. zeamays of 96.67%.
UJI EFEKTIVITAS EKSTRAK KULIT BATANG PULAI (Alstonia scolaris) TERHADAP HAMA Plutella xylostella Yustina Maria Silvia Wonga Puu
AGRICA Vol. 7 No. 1 (2014): June
Publisher : Agriculture Faculty of Flores University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (79.695 KB) | DOI: 10.37478/agr.v7i1.401

Abstract

The aim of this study is to find out the effectiveness and concentration of Pulai stem extract (Alstoniascolaris) upon the pest of Plutellaxylostella. This study was conducted in the Laboratory of Agriculture Faculty of Flores University in Ende. A completely random design was employed with five treatments, namely J0 (aquades), J1 (75 ml of Pulai stem extract concentration), J2 (100ml of Pulai stem extract concentration), J3 (125ml of Pulai stem extract concentration), J4 (150ml of Pulai stem extract concentration).The result of study reveals that extract of PulaiAlstoniascolaris stem was influential to the development of Plutellaxylostella pest in contact poison of J0 7,50%, J1 60,00%, J2 67,50%, J3 67,50% and J4 80,00%, while for repellant activity of J0 80,00%, J1 57,50%, J2 22,50%, J3 15,00%, and J4 15,00%, for belly poison of J0 00,00%, J1 57,50%, J2 72,50%, J3 75,00% and J4 80,00%. Extract of Pulai stem is the right plant which is effective to highest mortality of Plutellaxylostellapest, belly poison on80,00% of J4 treatment, repellant activity on 15% of J4 treatment, and contact poison on 70% of J4 treatment.
EKSPLORASI DAN IDENTIFIKASI PARASITOID HAMA Plutella xylostella PADA TANAMAN KUBIS Brassica oleracea Yustina Maria Silvia Wonga Puu
AGRICA Vol. 7 No. 2 (2014): December
Publisher : Agriculture Faculty of Flores University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (64.986 KB) | DOI: 10.37478/agr.v7i2.409

Abstract

This study aims at exploring and identifying parasitoid Plutella xylostella pest on cabbage plants Brassica oleracea in Nduaria Village and finding out the most dominant parasitoid associated with Plutella xylostella pest. Observation variables used included identification of parasitoid species being parasitic in each stage of Plutella xylostella pest life found in the field, parasitoid species abundance and domination of parasitoid. The result of exploration in three sub-villages of NduariaVillage indicated that there were three species of the parasitoid, namely eggof parasitoid Trichogrammatoidae cojuangcoi, the larva of parasitoid Diadegma semiclausum and Cotesia Plutellae. The dominant parasitoid is Diadegma semiclausumwith the value of 0,11. The most abundance in parasitoid larva Diadegma semiclausum is 5,7%. Damage intensity caused by Plutella xylostella was categorized as medium damage intensity of>25-?50%, and this kept rising along with the age of larva and population as well as supporting environment condition due to Plutella xylostella resistance to the pesticide.
UJI EFEKTIVITAS BEBERAPA JENIS TANAMAN SEBAGAI PESTISIDA NABATI TERHADAP HAMA GUDANG Callosobrunchus sp Yustina Maria Silvia Wonga Puu; Adrianus A Janggo
AGRICA Vol. 6 No. 1 (2013): June
Publisher : Agriculture Faculty of Flores University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (58.801 KB) | DOI: 10.37478/agr.v6i1.424

Abstract

This research aimed to determine the effectiveness of pesticide plant leaves to the growth of warehouse pest (Callosobrunchus sp)and plant extracts that causes the highest mortality of warehouse pests (CallosobrunchusSp). The design used in this study was a Complete Randomized Block Design (CRBD) with the treatments used are PN0 (aquades), PN1 (Leeksextract), PN2 (extracts of Tagetes), PN3 (leaves Lemongrass Extract). Variable observations in this study are the toxins, contact poisons, nerve poison, repellent and antioviposit. The results showed that the extract of leaves of Tagetes, Lemongrass and Scallion effect on the growth of pest warehouse (Callosobrunchus sp) on observations of Toxins, contact poisons, a nerve poison, repellent and antioviposit. Leaves Tagetes extract is the right plant and effective towards mortality of warehouse pest (Callosobruschus Sp) at 80.89% of poisons contact, the nerve at 84,02%, and 85,05% of repellent activity, antioviposit at 97,6%.
EFEKTIFITAS EKSTRAK UMBI GADUNG (Dioscorea hispida) TERHADAP HAMA ULAT GRAYAK (Spodoptera llitura F.) Yustina Maria Silvia Wonga Puu; Maria Alacok Mana
AGRICA Vol. 6 No. 2 (2013): December
Publisher : Agriculture Faculty of Flores University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (323.76 KB) | DOI: 10.37478/agr.v6i2.431

Abstract

This research aims at revealing the effect of yam extract against Spodoptera litura pest, and some optimum concentration of yam tuber extract which causes the highest mortality of grayak caterpillar pest. The design used in this experiment is Complete Randomized Block Design (CRBD) with treatment used is KO (distilled water), K1, K2, K3, K4. The observation variables in this research are contact poison, a nerve poison, stomach poison, and repellent. The result indicates that yam extract causes mortality in contact poison amounted to 30%, nerve poison amounted to 30%, stomach poison amounted to 30%, and repellent amounted to 23.85%.
PEMANFAATAN ATRAKTAN NABATI UNTUK PENGENDALIAN LALAT BUAH Bactrocera sp PADA TAANAMAN CABAI (Capsicum annum L.) Yustina Maria Silvia Wonga Puu
AGRICA Vol. 5 No. 1 (2012): June
Publisher : Agriculture Faculty of Flores University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37478/agr.v5i1.444

Abstract

The research aimed to know the use of vegetable attractants for monitoring fruit flies (bactrocera sp) and to know the most effective attractant on trapping fruit flies of chilli plant (Capsicum annum L). The method used in this study was Randomized Block Design namely treatment without attractan (A0), Steiner + guava attractan (A1), steiner + custard apple attractan (A2), steiner + banana attractan (A3), steiner +papaya attractan (A4). The variable is a population of fruit flies, the number of rotten fruit, and rotten intensity of fruit. The result showed that the use of vegetable attractan is effective in monitoring fruit flies pest, in which population of fruit flies pest was trapped about 27.74 %, a number of rotten fruit is 23,38 % and rotten intensity is 18,64 %. Custard apple attraction gave the highest influence on all observed variables.
PENGARUH DOSIS PUPUK ORGANIK CAIR TERHADAP PERTUMBUHAN DAN HASIL TANAMAN TERUNG (Solanum melongena L.) Yustina Maria Silvia Wonga Puu; Elias Nong Sina
AGRICA Vol. 5 No. 2 (2012): December
Publisher : Agriculture Faculty of Flores University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37478/agr.v5i2.451

Abstract

This research aimed to know the effect and optimum rates of liquid organic fertilizer on the growth and yield of Eggplant. The research used Randomized Block Designconsisted of 5 rates of liquid organic fertilizer;(M0 = control/without fertilizers, M1 = 1 liters ha-1, M2 = 1 ha-2 litres, M3 = 3 liters ha-1, M4 = 4 liters ha-1). The observed variable is the height of plants, number and leaf area, length of fruit, fruit diameter, number of fruit, the weight of fruit per plant, weight of fruit per hectare, fresh residues per plant, and fresh residues per hectare and harvest index. The result of experiment showed the rates of liquid organic fertilizer effect on percentage of the growth and yield of eggplant; they are; height of plants(6,22%), leaf number (28,20%), leaf area (29,58%), length of eggplant (43,11%), eggplant diameter (9,00%), number of eggplant (22,03%), weight of eggplant per plant (25,62%), weight of eggplant per hectare (16,70%), fresh residues per plant (28,58%), residues per hectare (34,93%), and harvest index (53,91%). Optimum rates of liquid organic fertilizer which effect on the growth and yield of eggplant are about 4 litre ha-1.
Pengaruh Dosis Pupuk Kandang Ayam Terhadap Pertumbuhan Dan Hasil Ubi Jalar (Ipomea batatas L) Varietas Cilembu Aksameri Dolmo; Imaculata Fatima; Yustina Maria Silvia Wonga Puu
AGRICA Vol. 4 No. 2 (2011): December
Publisher : Agriculture Faculty of Flores University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37478/agr.v4i2.455

Abstract

The study aims at determining, firstly, the effect of chicken manure dose on the growth and crop result of sweet potato (Ipoma batatas), Cilembu Variety, secondly, determining the optimum dose of chicken manure which can lead the best of growth and yield of sweet potato (Cilembu variety). The method used at this research is completely randomized design, and the treatments are K0 (non-fertilizer), K1 (dose of 10 tons/ha), K2 (dose of 20 tons/ha), K3 (dose of 30 tons/ha). Observation variables in this study are the length of the rod, number of leaves, leaf area, number of wet bulb per plant, berangkasan weight, wet weight of bulb per plant, length of the bulb, the diameter of the bulb, and weight of wet bulb per hectare. The result of this research indicates that the giving of chicken manure, giving a good influence at the growth and yield of Cilembu sweet potato and real affect long stem at the age of 2, 6, and 8 mst of age, and wide leaf index at age 2, 4, and 6 mst. Production components have significantly affected for berangkasan weight, wet weight of bulb per plant, length of the bulb, the diameter of bulb and weight of wet bulb per hectare. The optimum dose of chicken manure was obtained with a dose of 20 tons per hectare which can raise the growth of stem length of Cilembu Sweet Potato (80,85 cm) and the crop of Cilembu sweet potato (731, 72 kg/ha).
INVENTARISASI DAN IDENTIFIKASI HAMA DAN PENYAKIT UTAMA TANAMAN JAGUNG (Zea mays L.) Emanuel Randy Dhena; Yustina Maria Silvia Wonga Puu
AGRICA Vol. 4 No. 2 (2011): December
Publisher : Agriculture Faculty of Flores University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37478/agr.v4i2.461

Abstract

This research was carried out in order to understand the main types of pests and diseases that affect corn, which types are most dominant and to understand the severity of these main diseases in corn. Observation of variables involved the identification of pests and diseases that attacked corn plants, the diversity of these pests and diseases as well as the intensity of the damage caused by these pests and diseases. The results of this research showed that the main type of pest and disease that attacks corn are, among others: seedling flies (Atherigonasp), grasshoppers (Oxyasp), corn stalk drillers (Ostrineafurnacalis) and leaf rust. The most dominant type of pest or disease were grasshoppers (Oxyasp) which attacked plant leaves. The seriousness of an attack by a pest or disease was found to be important in the seedling phase, there are many variations in between species of corn and also developed with the age of the corn. At 12 days after planting, the incidence of insect attack was0.2% and at 33 days and 54 days after planting it was 0.32-0.47%. Whereas for disease, when observed at 33 and 54 days after planting, the average incidence of disease attack was 0.05-0.23%. Also, when observed at 61 days and 75 days, the incidence of attack rose to 0.32-40%.
Studi Biologi Hama Kutu Putih Pepaya Paracoccus marginatus Williams & Granara de Willink (Hemiptera: Pseudococadea) Gregorius O Leta; Yustina Maria Silvia Wonga Puu; Imaculata Fatima
AGRICA Vol. 4 No. 2 (2011): December
Publisher : Agriculture Faculty of Flores University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37478/agr.v4i2.462

Abstract

The goal of this research was to understand the biology of P. marginatus, a common pest for papaya plants. This research used 1 type of treatment which was repeated 10 times. The results of this research were intended to illustrate the average development time of each development phase of P. marginatus. These phases were: the egg phase (6 days), the female nymph phase (10 days), the male nymph phase (17 days), female adult stage (11 days), male adult stage (3 days). On average, the female life cycle was 27 days, and the male life cycle was 26 days. On average, the pre-fertile stage lasted 4 days, the fertile stage lasted 6 days and the post fertile stage lasted 1 day. On average the pre-egg-laying adult stage lasted 4 days, the egg-laying adult stage lasted 6 days and the post-egg-laying stage lasted 1 day. After the egg-laying stage, the average fecundity of P. marginatus was 370 eggs per female and from these, a total of 350 offspring were hatched per individual. The ratio of surviving Descendents to reproductive couples of P. marginatus white lice was 9:1.