Judul: Pengetahuan, Sikap, dan Tindakan Petani dalam Pengendalian Hama Terpadu Tanaman Padi di Kecamatan Malingping, Kabupaten Lebak, dan Kecamatan Petir, Kabupaten Serang.
Abstrak: As the main food crop, rice plays a pivotal role on supporting physiological needs of Indonesian society as well as has high economic value. In order to increase rice yield, farmers have several obstacles to confront such as decreasing land productivity, climate change and outbreak of pest and disease. The problem of pest and diseases inflict a financial loss of farmers, therefore it needs appropriate strategyto control it in order to minimizing the damage. Integrated pest management (IPM) is a comprehensive approach to control pest and disease that had been stated in government policy and environmental friendly. Unfortunately, although the government had socialized to the farmers, the implantation of IPM is still rare. The objective of this research is to study the level of knowledge, attitude, problems and action of farmers on cultivation management of rice including the strategy in controlling pest and disease. The research was conducted in Subdistrict of Malingping (Lebak Regency) and Petir (Serang Regency), Banten Province from May to June 2012. The data was collected by direct interview to the farmers using questionnaire. The result showed that the knowledge of farmers on rice cultivation management was based on heredity knowledge from their ancestor as well as developed from their own experience. Generally, the farmers in Malingping and Petir do not familiar with IPM, this is based on information from the farmers that they did not receive education about IPM from Indonesian government. In fact, the farmer is aware about the important of using healthy seeds, monitoring pest and disease, utilizing natural enemies and using pesticide wisely, that those are important aspect on IPM. In the management of cultivation, the farmers still depend on synthetic pesticide to control pest and disease due to practically simple to apply. Related to climate problem, the farmers tend to defenseless and do nothing without preventive or adaptive approach such as plant rotation that recommended by government.
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Judul: Perilaku Petani dalam Pengendalian Hama Terpadu Penggerek Batang Padi Kuning di Kecamatan Ciasem Kabupaten Subang
Abstrak: Hama penggerek batang kuning (Scirpophaga incertulas) telah menurunkan produksi padi di Indonesia secara signifikan sehingga diperlukan metode pengendalian yang tepat berdasarkan pengendalian hama terpadu (PHT). Penelitian ini bertujuan untuk mendapatkan informasi dan menganalisis pengetahuan, sikap, dan praktik petani responden terhadap pengendalian hama penggerek batang padi di Kecamatan Ciasem, Kabupaten Subang, serta karakteristik agroekosistemnya. Penelitian ini dilaksanakan pada bulan Maret hingga Juni 2023. Lokasi pengamatan tersebar di tiga desa dengan tingkat kerusakan hama yang berbeda dan total petani yang dipilih sebanyak 60 petani. Metode wawancara menggunakan kuesioner terstruktur untuk memperoleh data. Data yang diperoleh kemudian diolah dengan menggunakan MICROSOFT EXCEL 2013 dan dilakukan uji ?2 (Chi-square) untuk melihat hubungan antara karakteristik petani dengan pengetahuan, sikap, dan tindakan dalam pengelolaan tanaman padi pada tingkat a = 5%. Hasil penelitian menunjukkan bahwa petani di lahan dengan tingkat serangan ringan memiliki pengetahuan, sikap, dan tindakan yang lebih baik dibandingkan dengan petani di lahan dengan tingkat serangan sedang dan berat, Yellow stem borer (Scirpophaga incertulas) reduce rice production in Indonesia significantly so appropriate control methods based on integrated pest management (IPM) are needed. This study aims to obtain information and analyze knowledge, attitudes, and practice of respondent farmers towards the management of rice stem borer in Ciasem District, Subang Regency, and the characteristics of agroecosystem as well. This research was conducted from March to June 2023. The observation locations spreaded over three villages with different levels of pest damage and a totally 60 farmers were selected. Interview methods using structured and instructured questionnaires implemented to obtain data. Obtained data was then processed using MICROSOFT EXCEL 2013 and the ?2 (Chi-square) test was conducted to see the relationship between farmer characteristics with knowledge, attitudes, and actions in rice plant management at the a = 5% level. The results showed that farmers in the field with mild infestation had better knowledge, attitudes, and practice compared to the field with moderate and severe infestation.
Keyword: Penggerek batang padi, PHT, Survei, Rice stem borer, IPM, Survey

Judul: Penggunaan Teorema Homeomorphy 2-Manifold dan Teorema Euler Poincare pada Torus 𝑇�� dan Simplicial Complex 𝐾��
Abstrak: Two dimensional topological spaces are said to be homeomorphic if they have the same topological invariant, where one of topological invariant used is an Euler characteristic. Homeomorphy 2-Manifold’s Theorem and Euler Poincare’s Theorem are used to distinguish two topological spaces. Homeomorphy 2-Manifold’s Theorem uses Euler characteristic to identify two dimensional topological spaces. Euler Poincare’s Theorem is an alternative way to find Euler characteristic with Betti number, which is topological invariant as well. The objective of this paper is to investigate the homeomorphism of torus 𝑇����� and simplicial complex 𝐾�����. Topological space torus and simplicial complex 𝐾����� have the same Euler characteristic, which is two. Based on Homeomorphy 2-Manifold’s Theorem topological space torus 𝑇����� and simplicial complex 𝐾����� is homeomorphic.
Keyword: simplicial, torus, Euler, homeomorphism, topology