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All Journal JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Biodiversitas Journal of Biological Diversity
Nina Maryana
Department Of Plant Protection, Faculty Of Agriculture, Institut Pertanian Bogor. Jl. Kamper, Kampus Dramaga, Bogor 16680, West Java, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Diversity and foraging activity of coffee insect pollinators in land near and far from the forest of North Sumatra, Indonesia RIKA ROULINA SINAGA; NINA MARYANA; PURNAMA HIDAYAT
Biodiversitas Journal of Biological Diversity Vol. 25 No. 1 (2024)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d250127

Abstract

Abstract. Sinaga RR, Maryana N, Hidayat P. 2024. Diversity and foraging activity of coffee insect pollinators in land near and far from the forest of North Sumatra, Indonesia. Biodiversitas 25: 240-248. Coffee (Coffea spp.) is among the plant species that depend on insects to aid in its pollination process, where insect pollinators serve as intermediaries facilitating plant pollination. This study examined the diversity, abundance, and visiting activity of insect pollinators in coffee cultivation located in different areas, specifically those near the forest and those far from the forest in Simalungun District, North Sumatra. The study was carried out from September 2022 to February 2023 in six coffee cultivation sites spread across four sub-districts in Simalungun District, i.e., Silimakuta, Pematang Silimakuta, Purba, and Dolok Silau. The study's results revealed the presence of 16 species of insect pollinators in coffee cultivation near the forest and 13 species in those located far from the forest. The identified insect pollinators species were from Order Hymenoptera; Apis cerana, Lasioglossum sp., Dolichovespula norvegicoides, Diptera; Stomorhina discolor, Musca domestica, Bactrocera papayae, Nephrotoma flavescens, Episyrphus viridaureus, Oebalia sp., Coleoptera; Pachnaeus sp., Cantharis sp., Scarabaeidae sp 1., Maladera japonica, Lepidoptera; Agrotis segetum, Bradina diagonalis, and Nyctemera baulus. Notably, the abundance of coffee insect pollinators was more pronounced in close proximity to the forest compared to areas far from the forest. Regarding the visiting duration of these insects, S. discolor exhibited the longest visit duration of 76.46±1.19 seconds per flower, and the shortest duration in A. cerana was recorded at 8.35±0.23 seconds per flower.
Leaf beetle Phyllotreta striolata (Coleoptera: Chrysomelidae): Biology and infestation on Chinese flowering cabbage Brassica rapa var. parachinensis in Bogor, West Java, Indonesia DIAN AGUNG SANORA LAIA; NINA MARYANA; I WAYAN WINASA
Biodiversitas Journal of Biological Diversity Vol. 25 No. 7 (2024)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d250731

Abstract

Abstract. Laia DAS, Maryana N, Winasa IW. 2024. Leaf beetle Phyllotreta striolata (Coleoptera: Chrysomelidae): Biology and infestation on Chinese flowering cabbage Brassica rapa var. parachinensis in Bogor, West Java, Indonesia. Biodiversitas 25: 3099-3105. Chinese flowering cabbage (Brassica rapa var. parachinensis L.) holds significant economic value and provides essential nutrition. Bogor District, a primary region for vegetable production in Indonesia, faces a severe issue due to the leaf beetle Phyllotreta striolata Fabricius 1803 infestation on Chinese flowering cabbage plants. However, research on this pest in Indonesia is still limited. Observations on the biological aspects of P. striolata involved collecting and identifying adult P. striolata from Chinese flowering cabbage fields, along with biological observations focusing on the beetle's morphology and developmental stages. Population calculations of adult beetles and evaluation of P. striolata infestation intensity on Chinese flowering cabbage plants were conducted in four sub-districts in Bogor District. The average life cycle of this beetle was 27.15 days. The study revealed that the adult stage lasted an average of 119.10 days, with an average preoviposition period of 3.08 days. Adult populations tended to decrease with the age of Chinese flowering cabbage plants due to environmental factors and food source availability. Infestation intensity varied across locations, with Leuwimalang showing the lowest intensity (23.56%) and Laladon the highest (48.76%). These differences suggest that the environment in Leuwimalang may support the resistance of Chinese flowering cabbage plants to leaf pest attacks.
Mealybugs (Hemiptera: Pseudococcidae) on ornamental plants in West Java, Indonesia with a new country species record, and their natural enemies VIORENTA VIORENTA; DEWI SARTIAMI; NINA MARYANA; GILLIAN W. WATSON; AGUSTIN ZARKANI
Biodiversitas Journal of Biological Diversity Vol. 26 No. 2 (2025)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d260250

Abstract

Abstract. Viorenta, Sartiami D, Maryana N, Watson GW, Zarkani A. 2025. Mealybugs (Hemiptera: Pseudococcidae) on ornamental plants in West Java, Indonesia with a new country species record, and their natural enemies. Biodiversitas 26: 1018-1029. Part of Indonesia's biodiversity in ornamental plants has been developed for the global market. However, one of the constraints in meeting market demand is the presence of mealybug pests, which can reduce plant beauty, vigor, and economic value of plants. This study identifies mealybug species associated with ornamental plants in Indonesia and their natural enemies based on morphological characteristics. The research found 15 mealybug species, 14 of which had been previously recorded in West Java, Indonesia, namely Dysmicoccus brevipes, D. neobrevipes, Exallomochlus hispidus, Ferrisia virgata, Maconellicoccus hirsutus, Nipaecoccus nipae, Paracoccus marginatus, Phenacoccus solenopsis, Planococcus lilacinus, Pl. minor, Pseudococcus jackbeardsleyi, Ps. longispinus, Rastrococcus iceryoides and R. spinosus. The fifteenth species, Spilococcus mamillariae, found on cacti, is a new record for Indonesia and Southeast Asia. This study also documented various natural enemies, including both predators and parasitoids. Seven predator species were identified, six of which belonged to Coleoptera: Coccinellidae, namely Cryptolaemus montrouzieri, Curinus coeruleus, Illeis sp., Nephus sp., Cheilomenes sexmaculata, and Scymnus sp.; and one species of Neuroptera: Chrysopidae: Plesiochrysa ramburi. Hymenopteran parasitoids were found belonging to two families: Encyrtidae (Anagyrus pseudococci, A. mirzai, Blepyrus insuliaris and Gyranusoidea tebygi; and Eulophidae (Aprostocetus sp.). Furthermore, Hymenopteran hyperparasitoids belonging to the families Aphelinidae (Promuscidea unfaciativentris) and Encyrtidae (Prochiloneurus sp. and Prochiloneurus nagasakiensis) were also recorded
Refugia flowers enhance insect pollinator and quality of fruit production in strawberry farming SAKINAH AMANINA; NINA MARYANA; I WAYAN WINASA
Biodiversitas Journal of Biological Diversity Vol. 26 No. 3 (2025)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d260330

Abstract

Abstract. Amanina S, Maryana N, Winasa IW. 2025. Refugia flowers enhance insect pollinator and quality of fruit production in strawberry farming. Biodiversitas 26: 1310-1316. Strawberry flowers have different receptive and anthesis periods, making them generally cross-pollinated. Adding refugia flowers in strawberry farming can attract more insect pollinators, enhancing successful cross-pollination and complete fruit formation. This research aimed to study the effect of refugia flowers in improving the diversity and abundance of insect pollinators and, eventually, fruit production and quality in strawberry farming. The research was conducted in Sukaresmi Village, Rancabali Sub-district, Bandung District, West Java, Indonesia using a randomized group experimental design consisted of four treatments, namely strawberries plants without refugia (control/C), strawberries and common zinnia (Zinnia elegans) (SZ), strawberries and marigold flowers (Tagetes sp.) (SM) and strawberries and cosmos flowers (Cosmos sp.) (SC). Observations of pollinators were conducted at 06.00-09.00, 10.00-13.00, and 14.00-17.00 every three days for 30 days. Data was subjected to analysis of diversity and abundance, Analysis of Variance (ANOVA), Chi-Square test, and correlation analysis. The highest pollinator diversity was found in the SC treatment, and the lowest was in the control, although the diversity level in all treatments was moderate. The cosmos flowers also attracted the most significant number of individual pollinators. Three dominant pollinators were found in all plots, i.e. Apis cerana, Melanostoma sp., and Episyrphus viridaureus. Furthermore, the abundance of pollinators affected the quantity of perfect fruit and quality of strawberry fruits, with SC treatment producing the highest fruit yield and quality on average. The findings of this study imply that adding cosmos flowers positively impacts pollinators, which helps produce better strawberries.  
Population dynamics modelling of Scirpophaga incertulas based on climatic factors in Mardingding, Karo, North Sumatra, Indonesia TRI YANINTA GINTING; HERMANU TRIWIDODO; I WAYAN WINASA; NINA MARYANA
Biodiversitas Journal of Biological Diversity Vol. 26 No. 10 (2025)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d261016

Abstract

Abstract. Ginting TY, Triwidodo H, Winasa IW, Maryana N. 2025. Population dynamics modelling of Scirpophaga incertulas based on climatic factors in Mardingding, Karo, North Sumatra, Indonesia. Biodiversitas 26: 5003-5011. The yellow stem borer (Scirpophaga incertulas) is a major rice pest in Southeast Asia whose outbreaks are strongly influenced by climatic conditions. This study developed and evaluated dynamic models of S. incertulas populations in Mardingding Sub-district, Karo District, North Sumatra, Indonesia, during a single cropping season (January-April 2025). Field monitoring was conducted weekly at three sites using light traps, accompanied by assessments of infestation intensity and incidence. Climate data, including temperature, relative humidity, and rainfall, were obtained from NASA POWER (Prediction of Worldwide Energy Resources). To assess whether population differences among sites were statistically significant, an Analysis of Variance (ANOVA) was performed. The results revealed a significant difference in S. incertulas populations across locations (F = 8.10, F-critical = 3.28, p < 0.05), underscoring the influence of site-specific agroecosystem conditions. The relationships between climate variables and pest dynamics were further analyzed using multiple linear regression and a discrete logistic growth model. Results indicated that the logistic model provided more accurate estimates of S. incertulas population dynamics compared to linear regression, with the lowest prediction error (18.45%) observed at Tanjung Pamah. At this site, populations remained low (1.5-4.5 individuals) under average conditions of 22.89°C, 89.44% relative humidity, and 5.90 mm rainfall. Peak infestation intensity and incidence across sites occurred approximately six weeks after planting, under mean conditions of 23°C, 89% relative humidity, and 5-6 mm rainfall. These findings demonstrate that integrating climatic drivers with logistic models improves forecasting of S. incertulas outbreaks, particularly in relatively homogeneous rice systems. Such approaches support early-warning systems, reduce reliance on chemical control, and strengthen biodiversity-friendly rice pest management.
Arthropod diversity and trophic balance in monoculture and polyculture rice fields in Mardingding, Karo, North Sumatra, Indonesia TRI YANINTA GINTING; HERMANU TRIWIDODO; I WAYAN WINASA; NINA MARYANA
Biodiversitas Journal of Biological Diversity Vol. 27 No. 5 (2026)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d270502

Abstract

Abstract. Ginting TY, Triwidodo H, Winasa IW, Maryana N. 2026. Arthropod diversity and trophic balance in monoculture and polyculture rice fields in Mardingding, Karo, North Sumatra, Indonesia. Biodiversitas 27 (5): d270502. https://doi.org/10.13057/biodiv/d270502. This study evaluated the temporal dynamics and functional balance of arthropod communities in monoculture and polyculture rice systems across two cropping seasons in Mardingding Sub-district, Karo District, North Sumatra, Indonesia. Polyculture refers to rice fields in which diversification was implemented primarily through companion vegetation on bunds or surrounding field margins, whereas monoculture consisted of rice grown without such border vegetation. Weekly arthropod sampling was conducted from planting to harvest in six farmer-managed paddy fields using a portable suction sampler. Arthropods were identified as morphospecies and classified into functional guilds. Community structure was assessed using Shannon-Wiener diversity (H′), Pielou's evenness (E), and Simpson's dominance (D) indices and analyzed using GLM repeated-measures ANOVA, in which fields were treated as independent experimental units (n: 6), temporal observations were modeled as repeated measures within fields, and cropping season was included as a within-subject factor. Temporal patterns showed that diversity and evenness increased toward mid-season and declined near crop maturity, whereas dominance showed the opposite trend. The cropping system had a significant effect on diversity (F(1, 4): 18.86, p: 0.012, partial η2: 0.825), whereas the cropping season was not (p: 0.095). The interaction between the cropping system and season was also not significant. Evenness was significantly influenced by cropping season (F(1, 4): 12.44, p: 0.024, partial η2: 0.757), while no significant effects were detected for dominance. Paired comparisons at the field level indicated higher diversity in polyculture during Season 1, whereas differences were not significant in Season 2. Polyculture fields also showed higher natural enemy-to-pest ratios than monoculture. These findings suggest that crop diversification through bund-associated vegetation was associated with a higher relative abundance of natural enemies and may contribute to shifts in trophic structure within rice agroecosystems.
Potential pests and diseases on Sari Intan snake fruit in Bintan Regency, Riau Islands, Indonesia Melli Fitriani; Nina Maryana; Efi Toding Tondok
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 25 No. 2 (2025): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA: JOURNAL OF TROPICAL PLAN
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jhptt.225190-200

Abstract

Sari intan is a superior variety of snake fruit developed in Bintan District, Riau Islands, in 2015. The pests and diseases that attack the Sari Intan variety are not yet known. This research was conducted to analyze and identify potential pests and diseases affecting Sari Intan snake fruit at different plant ages in Bintan Regency. A survey was conducted in nurseries and in plantations with two- and five-year-old plant populations. Insects found were collected and identified in the laboratory. Plant parts showing disease symptoms were also collected; the pathogens were identified, and the intensity of damage was measured. Data were processed using Microsoft Office Excel 2010 and described qualitatively. The results showed that potential insect pests included Iceria sp. (Hemiptera: Monophlebidae), Coccotrypes sp. (Coleoptera: Curculionidae), and Setothosea asigna (Lepidoptera: Limacodidae). A non-insect pest observed was Zonitoides arboreus (Stylommatophora: Gastrodontidae). The incidence of disease in Sari Intan snake fruit leaves reached 100%, with a damage intensity of 58,7%, caused by fungal infections. The fungi identified were Pestalotia sp., Colletotrichum sp., Helminthosporium sp., Fusarium sp., and Curvularia sp. An important postharvest disease was fruit rot, caused by Thielaviopsis paradoxa.
Vatiga illudens Drake (Hemiptera: Tingidae): Morphometry and abundance in Bogor Regency, West Java, Indonesia Muhammad Rifqi Shafari; Nina Maryana; I Wayan Winasa
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 26 No. 1 (2026): MARCH, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA: JOURNAL OF TROPICAL PLANT PE
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jhptt.126247-255

Abstract

Vatiga illudens Drake (Hemiptera: Tingidae) is a newly emerging pest of cassava in Indonesia. This species has not yet been classified as a quarantine pest by the Indonesian government, allowing it to spread largely unnoticed. This study aimed to determine the abundance and morphometric characteristics of V. illudens in Bogor Regency, West Java. The research was conducted by collecting lace bug specimens preserved in 70% alcohol from nine cassava plantations located in two villages of Bojong Gede Subdistrict and one village of Tajurhalang Subdistrict. Lace bug abundance was analyzed using the least significant difference (LSD) test. Specimens were identified based on morphological characteristics using an Olympus SZ51 stereo microscope, and morphometric variables were measured using a Leica DFC 450 microscope. The results confirmed that the collected specimens were V. illudens, and their body measurements were relatively larger than those reported from Brazil and East Java. The mean body length and width were 1.01 ± 0.03 mm and 0.25 ± 0.03 mm for first-instar nymphs; 1.29 ± 0.09 mm and 0.36 ± 0.02 mm for second-instar nymphs; 1.62 ± 0.13 mm and 0.54 ± 0.04 mm for third-instar nymphs; 2.36 ± 0.08 mm and 0.72 ± 0.06 mm for fourth-instar nymphs; 3.14 ± 0.15 mm and 0.98 ± 0.09 mm for fifth-instar nymphs; and 4.44 ± 0.11 mm and 1.28 ± 0.04 mm for imagos. The highest V. illudens abundance was observed in Susukan Village, and populations in all observation villages were dominated by males.
Co-Authors AGUSTIN ZARKANI Ali Nurmansyah AUNU RAUF Aunu Rauf Aunu Rauf Aunu Rauf Aunu Rauf Aunu Rauf Aunu Rauf Dadan Hindayana DAMAYANTI BUCHORI Dewi Sartiami DIAN AGUNG SANORA LAIA Efi Toding Tondok Fatayatun Naimah GILLIAN W. WATSON HERMANU TRIWIDODO HERMANU TRIWIDODO HIKSA MAULANA SAPUTRA I Made Sumertajaya I Wayan Winasa IDHAM SAKTI HARAHAP Majariana Krisanti Melli Fitriani Muhammad Rifqi Shafari Muhammad Zainal Fanani Muhammad Zainal Fanani Muhammad Zainal Fanani PUDJIANTO PUDJIANTO Pudjianto Pudjianto PURNAMA HIDAYAT RIKA ROULINA SINAGA Ruly Anwar SAKINAH AMANINA Sri Heriza TRI YANINTA GINTING TRI YANINTA GINTING VIORENTA VIORENTA Wakhid Wakhid Wakhid Wakhid Wakhid Wakhid YANI MAHARANI