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Rawati Panjaitan
Jurusan Biologi FMIPA UNIPA
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TUNGAU PADA DAUN MANGGA (Mangifera Indica) Rawati Panjaitan
Jurnal Natural Vol. 13 No. 1 (2014)
Publisher : FMIPA Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/jn.v13i1.20

Abstract

Mites have hostplant specifications or host plants. Mites can be destructive and deadly of which is the host plants a mango crop. Mites on mango crops will cause the leaves yellow and fall off prematurely. This is will lead to the disruption of the productivity of mango. It is necessary for research to identify the mites that infect the mango crop. The method is carried out by direct observation. Mites were taken from the surface of mango leaves later in preservation with several levels of concentration of alcohol, and polyvinyl laktofenol. Then, observed under a microscope and documented for identification purposes. Mites on the leaf surface of manalagi mango (Mangifera indica) found two species, it is Oligonychus sp. and Oligonychus ilicis (Family: Tetranychidae, Superfamily: Tetranychoidea). Oligonychus sp. hallmark is rounded body shape like a spider, with a body is transparent and there are two long seta on posterior part. While Oligonychus ilicis has a characteristic elongated rounded body shape, red, and there is a short posterior seta. Oligonychus sp. and Oligonychus ilicis live as parasites on the surface of mango leaves that can lead to wrinkled leaves, yellow and to fall. Oligonychus life cycle starts from the eggs develop into Nympha and then adult.
KEANEKARAGAMAN KUPU-KUPU DI TAMAN WISATA GUNUNG MEJA KABUPATEN MANOKWARI Rawati Panjaitan
Jurnal Natural Vol. 7 No. 1 (2008): Jurnal Natural
Publisher : FMIPA Universitas Papua

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Abstract

This study was done to study the diversity of butterflies and its distribution in the Gunung Meja National Park. A survey was carried out using transect count or line transect and the classification of Parson was used for habitat distribution. A number of 96 species of butterflies was encountered from the Family Papilionidae, Pieridae, Lycaenidae dan Nyphalidae. Three types of habitat covered the distribution of the butterflies’ species, i.e. primer forest with 41 species, secondary forest with 83 species, and garden and house yard with 49 species. Based on the t test, there is a significant differences on the diversity of each habitat (tcount > ttable; p > 0.05).
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