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Impact Of Exposure To Phymar Csl Application On The Activity Of Pollinating Bee Tetragonula Laeviceps Smith (Hymenoptera; Apidae) Siti Anisa; Awaluddin Awaluddin; Rahayu Rahayu; Waode Siti Anima Hisein
Journal of Agriculture, Agribusiness, Welfare, Technology, Humanity, Environment, Social, and Economy Vol. 1 No. 4 (2026): Januari - Maret 2026 Edition
Publisher : Fakultas Teknologi Pertanian Unsultra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64690/agrones.v1i4.597

Abstract

The stingless bee Tetragonula laeviceps (Hymenoptera; Apidae) is an important pollinator that supports agricultural productivity, yet its population may be affected by pesticide use, including botanical pesticides. This study aimed to evaluate the toxicity of the botanical pesticide Phymar CSL to T. laeviceps, assess the effects of its residues on bee survival, and determine whether Phymar CSL acts as an attractant or repellent. The study was conducted at the Plant Protection Laboratory, Faculty of Agriculture, Halu Oleo University, from November-December 2025. Toxicity tests were carried out using five concentrations of Phymar CSL (5, 10, 20, 40, and 80 mL/L) mixed with a 10% honey solution and analyzed using probit analysis, while residue and preference tests were analyzed descriptively. The results showed that the LC₅₀ value of Phymar CSL for T. laeviceps was 16.194 mL/L, which was lower than the recommended field application dose (20 mL/L). Residue exposure resulted in relatively low bee mortality, even at LC₅₀ and LC₉₅ concentrations. Preference tests using a Y-tube olfactometer indicated that Phymar CSL was not attractive but exhibited repellent properties toward T. laeviceps. These findings suggest that although direct exposure to Phymar CSL may pose toxic risks to T. laeviceps, its residues are relatively safe and do not attract bees; therefore, application should be avoided during flowering stages and peak foraging periods to support pollinator conservation and sustainable agriculture.
Analysis Of Insect Fauna Biodiversity On Reclamation Land From Former Nickel Mining In Konawe Regency Awaluddin Awaluddin; Ibnu Fajar; Muhammad Botek; Waode Siti Anima Hisein; Nuriadi Nuriadi; Siska Efendi
Journal of Agriculture, Agribusiness, Welfare, Technology, Humanity, Environment, Social, and Economy Vol. 2 No. 1 (2026): April - June 2026 Edition
Publisher : Fakultas Teknologi Pertanian Unsultra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64690/agrones.v2i1.693

Abstract

Nickel mining activities have been identified as a factor in insect biodiversity degradation. This study aimed to evaluate insect community parameters, including species, diversity, abundance, and evenness, by comparing post-mining and natural land in Amonggedo District, Konawe Regency. Sampling was conducted using sweep net, pitfall trap, and light trap methods. The findings showed a significant decrease in species richness in the post-mining land (4 orders, 6 families, 11 individuals) compared to the control land (6 orders, 11 families, 104 individuals). Although both locations had a moderate diversity index (H’) (1.55 vs. 1.72), the post-mining land recorded a higher evenness index (E) (0.86), indicating a more balanced distribution between families but with a much lower population. Dominance shifted from Ectobiidae in the natural land to Crambidae and Scoliidae in the post-mining area, confirming a transformation in community structure due to the impact of nickel mining.
Growth of Sweet Corn (Zea mays saccharata (Sturt.) Bailey) and Weed Density With Different of Fertilizer’S Doses Halim Halim; Tresjia Corina Rakian; Rachmawati Hasid; Resman Resman; Waode Siti Anima Hisein
Jurnal Biodjati Vol 5 No 2 (2020): November
Publisher : UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/biodjati.v5i2.9050

Abstract

 This study aimed to determine the response of the growth of sweet corn plants and weed density to the treatment of bio-fertilizer based on arbuscular mycorrhizal fungi and cow manure fertilizer. The study was conducted using a randomized complete block design (RCBD) in a factorial pattern. The first factor was arbuscular mycorrhiza fungi (AMF) consisting of four doses, namely without AMF (A0), AMF 5 g/planting hole (A1), AMF 10 g/planting hole (A2), AMF 15 g/ planting hole (A3). The second factor was cow manure fertilizer con-sisting of three doses, namely without cow manure fertilizer (B0), cow manure fertilizer 3 kg/plot (B1), cow manure fertilizer 6 kg/plot (B2). The treatment applied consisted of 12 combinations of treatments with 3 replications, so there were 36 experimental units. The observed variables were plant height, stem diameter, leaf area and weed density. The results showed that the average height of sweet corn was best at 42 DAP in the treatment of cow manure fertilizer 6 kg/plot (B2) as 111.6 cm. The average highest of stems diameter was at 14 DAP in the treatment of cow manure fertilizer 6 kg/plot (B2) as 0.40 cm. The average leaf area of sweet corn was at the age of 28 DAP was highest in the combination treatments cow manure fertilizer 6 kg/ plot (A0B2) and without AMF as 894.5. The weed species with the highest density found was I.cylindrica as 0.5-32.4%, C. kyllingia as 1.3-41.8%, C. rotundus as 1.3-30.3% and F.miliaceae as 1.2-12.7%.Â