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Betsy A. N. Pinaria
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Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance Social Sciences

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EFEKTIVITAS BEBERAPA INSEKTISIDA NABATI TERHADAP HAMA Plutella xylostella Linn. (Lepidoptera; Plutellidae) PADA TANAMAN KUBIS (Brassica oleracea L.) DI KABUPATEN MINAHASA Margaretha S. Ginting; Jantje ., Pelealu; Betsy A. N. Pinaria
AGRI-SOSIOEKONOMI Vol. 13 No. 3A (2017)
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (605.409 KB) | DOI: 10.35791/agrsosek.13.3A.2017.18375

Abstract

This study aims to: (1) Know the effectiveness of plant insecticides plant extracts Tiger Grass, Nutmeg Seeds and Bitung Fruits against cabbage caterpillar Plutella xylostella L. on cabbage plants? (2) Analyzed the mortality of the cabbage of Plutella xylostella L. cabbage on cabbage plants in Minahasa Regency on the administration of plant insecticide plant extracts of Nutmeg, Tiger Grass and Bitung Fruit. This research was conducted from July to November 2017 using a Completely Randomized Design (RAL), consisting of 4 treatments and 3 replicates. Field sampling of cabbage plants was conducted on 12 sub-plots. Every 7 days the number of P. xylostella larvae is observed. Observations were performed before spraying, and 1 day after spraying, as well as on week II to week V observations, for the collection of P. xylostella pupa done on 1 day after spraying, the number of pupa collected per sub-plot was 5 pupa so that 15 pupa collected, the total number of pupa 60 pupa. Then the pupa collected was placed in the prepared container and then observed the development. The results showed that: (1) The test result from Seed Nut extract, Tiger Grass extract and Bitung Fruit at concentration of 15% to mortality of Plutella xylostella larvae showed the significant difference of each treatment with the highest mortality rate of Plutella xylostella larvae 87,07% on Fruit extract treatment Bitung, Tiger Grass extract 78.09 percent, on Seed Nut extract 74.44 percent and 22.55 percent on control. (2) The test result from Seed Extract of Nutmeg, Bitung and Tiger Grass on the mortality of Plutella xylostella larvae showed significant difference of each treatment with higher concentration of extract treatment, the higher the mortality of Plutella xylostella larvae. 
Populasi Hama Keong Mas (Pomacea canikulata L.) Dalam Umpan Dan Jebakan Pada Tanaman Padi Sawah (Oryza sativa L.) Glaudio Lonta; Betsy A. N. Pinaria; Jimmy Rimbing; Marjam M. Toding
COCOS Vol. 12 No. 1 (2020): EDISI JANUARI-MARET 2020
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v5i5.30656

Abstract

ABSTRACTGolden snail (Pomacea canikulata L.) or also known as mulberry snail is one of the main pestsof rice plants in North Sulawesi, including in the City of Tomohon. This golden snail pest likesyoung rice plants with the intensity of damage varies from 10-100% depending on the level ofpopulation on each land. This pest destroys plants by grating plant tissue and eating it. In responseto help the problems faced by farmers, research has been carried out on the population of thegolden snail pest (Pomaceacaniklata L) in bait and traps on lowland rice plants (Orzya sativa L).The purpose of this study was to determine the effect of the use of papaya leaf baits and watertrench traps on the population of golden snail pests on lowland rice plants. The study wasconducted in Taratara 1 Village, West Tomohoon District, Tomohon City. The duration of thestudy is approximately four months, which took place from March to May 2020. The researchmethod was carried out by quantitative descriptive methods with direct experiments in the field.This experiment uses two lowland rice fields consisting of bait and trap. Observations were madeat the age of plants 21 days after planting, 28 days after planting, and 35 days after planting. Theresults of the research on the treatment of bait using papaya leaves an average of 24.8 individuals/ m2 and on the treatment of traps using an average water trench of 31.4 individuals / m2. Thepopulation of golden snail pests in both treatments decreased from plants aged 21 days afterplanting to 35 days after planting. The age factor in plants can increase the height of golden snailpests. Gold snail can easily attack plants by grating the plant tissue and eating it. Because thestructure of the stems, stems, and leaf blades in the plant is still young. Both treatments contributeto positive results, so that further research is needed by combining bait and trap treatments on alarger scale and can be integrated with other environmentally friendly control methods.
Co-Authors Glaudio Lonta Jantje ., Pelealu Jimmy Rimbing Margaretha S. Ginting Marjam M. Toding