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Caroulus Rante
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Agriculture, Biological Sciences & Forestry

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POPULASI DAN INTENSITAS SERANGAN HAMA PUTIH (Nymphula depunctalis Guene) PADA TANAMAN PADI SAWAH DI KECAMATAN DUMOGA TIMUR KABUPATEN BOLAANG MONGONDOW Stela F. Pratiwi; Noni Wanta; Caroulus Rante; Guntur Manengkey
COCOS Vol. 4 No. 2 (2014)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v4i2.3735

Abstract

ABSTRACTRice crops is included into the family of Graminae that produces seeds from China. Rice Plant is the crops that produce rice, consumed approximately by 90 % from the whole citizens of Indonesia as the main food. White pest(Nymphula depunctalis Guene) is one of pests that attacks rice crops in Indonesia. This research aims to find out the population and intensity of the attack of N. depuntalis pest. The research took place in sub-district of East Dumoga, regency of Bolaang Mongondow, which was in three villages, that is Imandi, Mogoyunggung and Tonom, and the execution time was from July to Desember 2013. This research used the survey method done in rice field belonged to farmers, each village was taken three observation plot, and determined of five sub observation plot to be observed.The materials and tools used were rice crops planting, killing bottle, indicator, insect net, insect collecting bottle, label paper, plastic bag, plastic rope, bamboo, pair of scissors,camera and writing tools. The research result shows that white pest (N. depunctalis) has been spread on the rice in three villages in sub-district of East Dumoga with the population average value of 2,16%. The highest pest population was found in Village of Mogoyunggung that is 2,93 pests on average, and then in village of Tonom with 2,28 pestsand the lowest population was found in village of Imandi with the average of 1,28 pests, while the attack intensity is still classified into the low one in sub-district of East Dumogathat is 10,33%.Keyword: rice plants, white pest, population, attack intensity
PENGGUNAAN METHYL EUGENOL TERHADAP SERANGAN LALAT BUAH (Bactrocera sp.) PADA TANAMAN CABAI KERITING (Capsicum annum L.) DI KOTA TOMOHON Karni Frastika Dondo; Jimmy Rimbing; Caroulus Rante
COCOS Vol. 10 No. 2 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i4.21177

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ABSTRACT  Curly chili (Capsicum annum L.) is one of the many horticultural commodities needed in daily life so that its needs continue to increase along with population growth and technological progress. One of the main pest species that attacks fruits and vegetables in Indonesia is Bactrocera sp. Methyl eugenol is reported sp to be able to control fruit flies in mango, guava, starfruit, melon, jackfruit, guava, tomato, red pepper and bitter melon. The aim of this study was to determine the level of fruit damage by Bactrocera sp. Fruit flies. in the use of methyl eugenol in curly chili plants in Tomohon City, especially in the villages of Kinilow, Kakaskasen, and Matani. The duration of the study lasted for three (months), namely from February to April 2018. This research was carried out by survey method or by direct observation at the research location. Results of research on percentage of Bactrocera sp. in the land of methyl eugenol from the first and second weeks of 21.53% and 20.78%, while in the third week, the percentage of attacks was 18.86% followed by the observation of the fourth and fifth weeks increased by 24.34% and 33.86%. While the land of farmers experienced a decrease in the percentage of attacks from the first week, the second was 16.19% and 15.78%, then followed in the third, fourth and fifth weeks, the percentage of attacks increased by 17.47%, 18.54% and 18.7% . Whereas on land that is left to attack Bactrocera sp. from the first week of 16.09%, the second week was 21.9%, and in the third and fourth weeks the attack rate increased by 25.38% and 26.52%, followed by the fifth week of the attack level which increased to 30.56%.  Keywords: Percentage, Bactrocera sp. Curly chili
Co-Authors Guntur Manengkey Jimmy Rimbing Karni Frastika Dondo Noni Wanta Stela F. Pratiwi