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Journal : Indonesian Biodiversity Journal

IDENTIFICATION OF INSECT SPESIES ASSOCIATED WITH AVOCADO SEEDS (Persea americana Mill) Dewi Mellaninyanto; Orbanus Naharia; Utari Satiman
Indonesian Biodiversity Journal Vol. 3 No. 2 (2022): Agustus 2022
Publisher : Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/ibj.v3i2.5369

Abstract

Avocado (Persea americana Mill) is a fruit plant that has high nutritional value and is relatively economical. Efforts to increase the production of avocado seeds (Persea americana Mill) are still often constrained by pests and diseases. This study aims to determine the types of insects associated with avocado seeds (Persea americana Mill) and the level of damage to avocado seeds (Persea americana Mill) due to insect pests in Seeds Garden of the Melati Women Farmer Group 2, Ranowulu District, Bitung City. This study used a survey method, namely direct observation (visual) of pests that attack avocado seeds (Persea americana Mill). This research is a descriptive research with survey method. Observation activities by direct observation on avocado plant seeds (Persea americana Mill). Insects were identified using an insect identification book guide. The results of identification and direct observation at the Seeds Garden of the Melati Women Farmers Group 2, Ranowulu District, Bitung City, found 3 orders consisting of 4 insects, namely the Ordo Orthoptera Wood Grasshopper (Valanga nigricornis) and Green Steamed Grasshopper (Atractomorpha crenulata), Ordo Homoptera White Dompolan Tick (Planococcus citri), Ordo Hemiptera Bapak Pucung (Dysdercus cingulatus). The results showed that the percentage of seeds attacked by insect pests in the Seeds Garden of the Melati Women Farmer Group 2, Ranowulu District, Bitung City with a seedling age of 1-10 months was 36.66% and a damage rate of 26.97% of the total seeds of the 30 seeds that had been observed and included in the moderately damaged category.
ANALYSIS OF PESTICIDE RESIDUES IN POTATO PLANTS IN MOAT DISTRICT, EAST BOLAANG MONGONDOW REGENCY, INDONESIA Riviani Yubelin Rompas; Orbanus Naharia; Masje Wurarah
Indonesian Biodiversity Journal Vol. 4 No. 3 (2023): December 2023
Publisher : Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/ibj.v4i3.6882

Abstract

The use of pesticides on highland vegetable crops by farmers is considered highly intensive. This is primarily due to favorable climatic conditions for developing plant pests and diseases. Pesticides are toxic bioactive chemical substances (at concentrations > 0.5 ppm). Each of these poisons carries risks to the environment and humans in their use. Pesticide residues are specific substances found in agricultural food crops or animal feed, either as a direct or indirect result of pesticide use. This research aims to determine the presence of pesticide residues in potatoes cultivated by the community of Moat Subdistrict, East Bolaang Mongondow Regency. This study adopts a qualitative descriptive approach with laboratory experimentation. Representative samples were taken from ten potato plantations in Moat Subdistrict, East Bolaang Mongondow villages. They were then analyzed at the Laboratory of Plant Protection and Quality Testing. Based on the research findings, the researchers concluded that six locations of potato tubers in 10 villages in Moat Subdistrict, East Bolaang Mongondow Regency, did not contain pesticides. In comparison, the remaining four locations showed pesticide content.
EFFECT OF LIQUID ORGANIC FERTILIZER FROM MARKET WASTE AND RICE WASHING WATER ON THE GROWTH OF LAND KANGKUNG (Ipomoea raptans) Arin Makasa; Orbanus Naharia
Indonesian Biodiversity Journal Vol. 4 No. 1 (2023): April 2023
Publisher : Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/ibj.v4i1.6999

Abstract

Some of Indonesia's agricultural countries produce many types of vegetables; for example, mustard greens, cabbage, spinach, kale, and so on are usually cultivated in Indonesia. Market waste and rice washing water can make liquid organic fertilizer (POC). This research was structured to know the effect of rice washing water on land kangkung plants' growth and the concentration required in one planting period. The research location is Maesa Unima housing, Tondano District, Minahasa Regency, North Sulawesi Province. This study uses quantitative methods with the implementation of experiments. Using the RAL technique or Completely Randomized Design totaling four treatments and each repeated seven times With liquid organic fertilizer (POC) using four treatments, namely: P0: Control (Using plain water), P1: POC with a concentration of 15%, P2: POC with a concentration of 30% and P3: POC with a concentration of 45% and the parameters measured were the growth of water spinach plants, namely: land kale plant height, number of land kale plants and leaf length on land kale plants. The results showed that rice washing water affected the growth of kale plants, namely plant height, number of leaves, and leaf length, and the required concentration was 45%. The research is due to the large amount of organic and household waste in the market, which can pollute the environment if not utilized