Judul: Fungsi Kepemimpinan Ketua Kelompok Tani dalam Percepatan Proses Difusi Inovasi (Kasus: Kelompok Tani di Desa Sindanglaya, Kecamatan Cipanas, Kabupaten Cianjur)
Abstrak: Pembangunan pertanian dan sumber daya manusia pertanian di Indonesia yang banyak menggunakan pendekatan kelompok menunjukkan pentingnya peranan ketua kelompok tani. Pemimpin dalam kelompok tani merupakan salah satu agen yang dapat mendifusikan sebuah inovasi dan dianggap lebih efektif. Pelibatan pemimpin kelompok tani mampu mempercepat difusi inovasi karena masyarakat merasa lebih memiliki inovasi yang berasal dari masyarakat itu sendiri. Penelitian yang dilakukan di Desa Sindanglaya, Kecamatan Cipanas, Kabupaten Cianjur menggunakan pendekatan kuantitatif dengan metode survei dan didukung data kualitatif yang didapat melalui wawancara mendalam dan observasi. Responden sebanyak 46 orang diambil menggunakan teknik sampel acak distratifikasi. Hasil penelitian menunjukkan fungsi kepemimpinan ketua kelompok tani yang menonjol adalah fungsi hubungan sedangkan proses difusi inovasi yang dilakukan oleh anggota kelompok tani tergolong sedang atau cukup berhasil. Analisis data menggunakan uji korelasi Rank Spearman menunjukkan bahwa terdapat hubungan kuat antara fungsi kepemimpinan ketua kelompok tani dengan proses difusi inovasi yang menunjukkan bahwa fungsi kepemimpinan ketua kelompok tani dapat mempercepat proses difusi inovasi.
Keyword: Diffusion of Innovation, Leadership Function, Farmer Group, Leader

Judul: Keragaan Pemimpin Informal Bidang Pertanian dalam Difusi Inovasi Pertanian (Studi Kasus di Desa Nayagati Kecamatan Leuwi Damar Kabupaten Lebak)
Abstrak: Praktek Lapang ini bertu juan untuk menin jau kepemimpinan informal bidang pertanian dalam difusi inovasi pertanian, dan kedua bertujuan untuk melihat proses adopsi inovasi individual untuk bidani pertanian. Pembangunan pertanian membutuhkan inovasi-inovasi. Difusi merupakan salah Batu masalah dalam proses adopsi inovasi, terutama di daerah yang masih terbelakang atau kurang maju. Pada kondisi demikian pemimpin informal merupakan potensi untuk keberhasilan adopsi inovasi pertanian. Hal itulah yang melatarbelakangi praktek lapang ini.
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Judul: Biology and ecology of the buffalo fly, haematobia exigua de meijere (diptera:muscidae)
Abstrak: The life history of the buffalo fly was observed at room temperature of 27°-29.5°C and at a relative humidity of 48-68 percent. The eggs hatched after 17-22 hours, with an average of 18 hours. First instar larvae measured 1.25 + 0.16 mm long and 0.27 + 0.037 mm wide. reach the second larval stage. It took 6-12 hours to the second instar larvae measured 2.676 +0.187 mm long and 0.353 +0.028 mm wide. The second instar took about 12-24 hours to reach the third larval stage. The third instar measured 6.833 + 0.189 mm long and 0.919 + 0.051 mm wide. It took about 2-3 days for the third instar to become pupae. Duration of the pupal stage was about 5-7 days before the adults emerged. Under laboratory condition, the buffalo fly completed its life cycle in 9.5 to 10.5 days, whereas under field condition it took 9-14 days with an average of 10.5 days. The growth ratio which was based on the measurements of the cephalo-pharyngeal skeleton of each instar was 1.797. The preoviposition period was 8-12 days and mating usually occurred on the 6th or 7th day. The longevity of the male was 29 days, whereas it was 32 days in the female. The range of egg production under laboratory condition was between 20-139 per female fly. The belly and hind legs of the carabao were the most preferred habitat either during cloudy and cool dry or shiny and warm day. When the weather was clear and the carabao was in the shade, the flies tended to be more distributed particularly on the shoulder, dewlap, back and horns. The carabaos had relatively fewer Musca sp. and Stomoxys calcitrans than cattle; never the less carabaos had a higher infestation of buffalo fly than cattle. Oviposition occured either during the day or night but the buffalo flies were more active during the night than in the day time. The effect of various lengths of exposure time of manure in relation to the oviposition was profound. observed, the maximum number of the buffalo flies was occurred when the dung was exposed for 30 minutes. With increasing time of exposure the number and variety of insects also increase. It was evident that Sepsidae and psychodidae were the most dominant insects emerging from the dung. The number of buffalo flies also increased with increasing
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