Akhmad Rizali

University of Brawijaya · Department of Plant Pests and Diseases

Pests are one of the constraints in citrus cultivation in Malang District, Indonesia, as they affect yield quality. The objective of this study was to evaluate the diversity of visiting arthropods and their relationship with environmental parameters. Arthropods were observed in 4 replicates in monoculture (control) and polyculture citrus orchards (...

Pengelolaan lanskap dalam suatu agroekosistem merupakan bagian dari pendekatan ekologi yang bertujuan untuk melestarikan kontrol biologis untuk menekan kelimpahan hama dan kerusakan tanaman. Penelitian ini menyelidiki bagaimana komposisi lanskap pertanian mempengaruhi kelimpahan dan tingkat serangan Spodoptera frugiperda serta kelimpahan dan tingka...

Fernando I, Muhammad FN, Furqoni R, Mario MB, Puspitarini RD, Trianti I, Syib’li MA, Rizali A. 2024. Local and landscape effects on the abundance and diversity of soil arthropods in citrus orchards of Malang and Batu, East Java, Indonesia. Biodiversitas 25: 3920-3927. Soil arthropods are crucial for sustaining the balance and function of agroecosys...

The use of bay leaves (Syzygium polyanthum) as an alternative fumigant has the potential to control Araecerus fasciculatus (De Geer (Coleoptera: Antribidae). The objective of this study was to evaluate the bioactivities of bay leaf fumigant tablet (BLFT) with exposure times (24, 48, and 72 h) on adult mortality, oviposition deterrence, inhibition o...

In Indonesia, the rapid expansion of oil palm and rubber plantations replaces large areas of tropical rainforest. Rainforest transformation alters the diversity and composition of parasitoid wasp communities, but appropriate management strategies to buffer their decline in rainforest transformation landscapes are not yet developed. Here, we studied...

Muhammad FN, Rizali A, Rahardjo BT. 2024. Ant communities and their trophobionts shape the incidence of pests and diseases in Indonesia's coffee agroforestry system. Biodiversitas 25: 1127-1134. Ants play various roles in a coffee agroecosystem, and their presence may impact biological control in coffee plantations. Despite the pantropical economic...

Pasaribu DN, Rizali A, Tarno H, Priawandiputra W, Johannis M, Buchori D. 2024. Agricultural landscape composition alters ant communities in maize fields more than plant diversity enrichment. Biodiversitas 25: 205-213. Fragmented natural habitats in human-modified landscapes play a crucial role in conserving biodiversity. Ants, as keystone species,...

Understanding host-parasitoid food webs, as well as the factors affecting species interactions, is important for developing pest management strategies in an agroecosystem. This research aimed to study how the long-term change in oil palm plantations, specifically the tree age, affect the structure of host-parasitoid food webs. The field research wa...

Sujak, Rahardjo BT, Muhammad FN, Rizali A. 2023. Diversity and abundance of ants (Hymenoptera: Formicidae) as indicators of sugarcane agroecosystem stability in Blitar, East Java, Indonesia. Biodiversitas 24: 5336-5342. The abundance of ant communities can be used as an indicator of stability in agroecosystems. This study was designed to evaluate t...

In Indonesian sugarcane plantations, the infestation severity by the sugarcane shoot borer, Scirpophaga excerptalis , depends on the sugarcane variety and the presence of natural enemies. However, evaluating the resistance of sugarcane cultivars to borer infestations typically involves artificial infestations and laboratory assays that do not take...

Fruitflies, particularly Bactrocera carambolae and Bactrocera dorsalis, are significant pests that have the potential to diminish the quality and quantity of agricultural products. They may live in diverse habitats, particularly in agroecosystem habitats. Orchard habitats offer a source of food and development for fruit flies like B. carambolae and...

Salah satu hama yang menyerang beras simpanan ialah Corcyra cephalonica. Penelitian ini bertujuan untuk mengetahui pertumbuhan populasi dan perkembangan C. cephalonica pada beras hitam dengan proporsi bentuk yang berbeda. Penelitian dilaksanakan di Laboratorium Hama Tumbuhan, Departemen Hama dan Penyakit Tumbuhan, Fakultas Pertanian, Universitas Br...

Studies of the effects of landscape composition on pests and their natural enemies on agroforestry systems is still limited, whereas the system can maintain biodiversity. This research investigated the impact of agricultural landscape composition on shaping the interaction between pests and natural enemies in cacao agroforestry. The study was condu...

Rahmawasiah, Abadi AL, Mudjiono G, Rizali A. 2022. The effect of integrated pest management on Scirpophaga innotata population and natural enemies on rice field in South Sulawesi, Indonesia. Biodiversitas 23: 4510-4516. White rice stem borer, Scirpophaga innotata, is an important pest on rice plants that needs attention because the population is qu...

Information about fruit flies (Diptera: Tephritidae: Dacinae) diversity in Lombok island is still lacking. This study was aimed to determine the diversity and species composition of the Dacinae fruit flies as well as developed the identification key of fruit flies in Lombok island. The research was conducted in 6 locations i.e., Nature Park (NP) of...

Integrating plantation landscape with vegetation/tree diversity has been proposed as a strategy to maintain crop production (for livelihood) while increasing biodiversity, habitat complexity and ecological functions. The objective of this research was to investigate the influence of tree biodiversity in experimental biodiversity enrichment in oil p...

Muhammad FN, Rizali A, Rahardjo BT. 2022. Diversity and species composition of ants at coffee agroforestry systems in East Java, Indonesia: Effect of habitat condition and landscape composition. Biodiversitas 23: 3318-3326. Habitat condition and landscape composition are the main factors that shape biodiversity in agroecosystems. However, informati...

The agroforestry system with its diversity of vegetation has the potential on the existence of antagonistic and entomopathogen fungi. This study was conducted to evaluate the diversity of antagonistic fungi and entomopathogen fungi in the rhizosphere and pine leaf litters on pine monoculture and intercropping pine - coffee. The research was started...

Prabowo H, Rahardjo BT, Mudjiono G, Rizali A. 2022. Stable isotope analysis to assess the trophic level of arthropod in sugarcane ratoon agroecosystem. Biodiversitas 23: 2871-2881. Arthropods represent one of the main components of soil inhabitants and play an important role in maintaining soil health, as well as providing ecosystem services. The d...

p> [ The Effect of Habitat and Pest Control Methods on the Population and Intensity of Attacks of Citrus Rust Mite ( Phyllocoptruta oleivora )] Habitat di sekitar lahan dan cara pengendalian hama dapat berpengaruh terhadap populasi dan intensitas serangan hama tungau karat jeruk Phyllopcoptruta oleivora (Ashmead). Tujuan penelitian adalah mempela...

There is a high diversity of bees in the tropics, including honey bees and stingless bees, which are the main sources for honey and other ecosystem services. In Indonesia, beekeeping practices have been developed for centuries, and they have been part of many cultural practices in many traditional communities. The objective of this research was to...

Hudiwaku S, Himawan T, Rizali A. 2021. Diversity and species composition of fruit flies (Diptera: Tephritidae) in Lombok Island, Indonesia. Biodiversitas 22: 4608-4616. Fruit flies (Diptera: Tephritidae) are pests of several horticultural crops that can reduce the quality and quantity of fruit production. Information on fruit flies in Lombok Island...

Prabowo H, Rahardjo BT, Mudjiono G, Rizali A. 2021. Impact of habitat manipulation on the diversity and abundance of beneficial and pest arthropods in sugarcane ratoon. Biodiversitas 22: 4002-4010. Sugar production in Indonesia faces several challenges such as infestation of pests and diseases that lead to decline in sugarcane production and produc...

Rizali A, Oktaviyani, Putri SDPS, Doananda M, Linggani A. 2021. Invasion of fall armyworm Spodoptera frugiperda, a new invasive pest, alters native herbivore attack intensity and natural enemy diversity. Biodiversitas 22: 3482-3488. A new invasive alien pest, fall armyworm Spodoptera frugiperda has been reported widely spread in Indonesia since 201...

Land-use change and habitat fragmentation are well-known to affect host-parasitoid interactions. However, the study of the effects of landscape composition, as a result of habitat fragmentation, on host-parasitoid food webs is still limited especially in a tropical agricultural landscape. This research was aimed to study the effect of agricultural...

Kondisi habitat di sekitar pertanaman kakao yang meliputi tutupan kanopi dan vegetasi bawah (gulma) serta keberadaan tropobion kutu putih (Planococcus sp.) dapat mempengaruhi keanekaragaman dan kelimpahan semut. Penelitian ini bertujuan untuk mempelajari keanekaragaman dan kelimpahan semut pada perkebunan kakao serta mempelajari pengaruh kondisi ha...

Natural habitats can support insect diversity and shape their community structure in agroecosystems. The objective of this research was to investigate how proximity of natural habitat and invasive ant species influences the community structure of ants in oil palm plantations in Central Borneo, Indonesia. Twelve oil palm fields, at varying distances...

Bees are important pollinating insects in the ecosystem because they pollinate a wide number of plant species, from flowering plants to plantation crops. However, there is still a need for more research on the diversity and species composition of bees in forests and plantations. This study sought to measure the diversity and species composition of...

The two-spotted spider mite Tetranychus urticae Koch is an excellent model organism among phytophagous mites. Therefore, the investigation for alternative host plants for a mass rearing programme is of great interest. However, its development and reproduction are affected by host plant variability. In this study, the biology of T. urticae on three...

Chromolaena odorata is well known as an invasive weed, and its existence in agricultural habitats causes an undesirable effect on crop plants. The invasion of C. odorata alters local biodiversity and shapes the new trophic interaction with local herbivores and other insects. This research was conducted to study the insect communities associated wit...

In agricultural landscapes, natural habitat may enhance species diversity or the abundance of natural enemies in arable lands, and thereby suppress pest populations effectively. However, there is a lack of studies in Tropical regions about these interactions. The aim of this study was to investigate the community structure of Hymenoptera parasites...

Syahidah T, Rizali A, Prasetyo LB, Pudjianto, Buchori D. 2020. Short Communication: Landscape composition alters parasitoid wasps but not their host diversity in tropical agricultural landscapes. Biodiversitas 21: 1702-1706. The diversity of parasitoid wasps and their hosts in an agricultural landscape is affected by crop management and habitat con...

Rizali A, Karindah S, Windari A, Rahardjo BT, Nurindah, Sahari B. 2020. Ant and termite diversity in Indonesian oil palm plantation: Investigating the effect of natural habitat existence. Biodiversitas 21: 1326-1331. Natural habitat existence in oil palm plantation has high conservation value and plays an important role in maintaining biodiversity....

The rust-red flour beetle, Tribolium castaneum, is a polyphagous pest of cereal grains and many other stored products. The presence of this pest causes contamination and economic losses by reducing the quality and quantity of commodities in storage. This research was aimed to study the development of T. castaneum on different flour products and inv...

p>Hymenoptera is one of the four largest insect orders in the world, one of which is its role as a natural enemy (parasitoids, predators). Land conversion can affect the diversity and composition of the parasitoid Hymenoptera and its ecological role. This study aims to examine the effect of land use types on the diversity and composition of hymenop...

Color preferences on post-harvest adult pests are useful for monitoring instrument development which based on the colonization and oviposition behavior. The research was aimed to determine the most attractive color with a certain wavelength for the test insects. The research was conducted in laboratory conditions of Plant Pest Laboratory, Departmen...

p>Ants provide important ecosystem services such as predation and decomposition. The ecosystem services in different land-use systems will be influenced by the dominant ants species in those areas. The objectives of this study were to investigate the impact of land use types on ant community structure and to measure the ecosystem service provided b...

The presence of organisms in soil play a pivotal role in the health of a ground ecosystem. Diversity and abundance of soil organisms are mainly influenced by soil characteristics and condition of above-ground habitat. This research aimed to study the diversity of arthropods in topsoil of soybean field and investigate factors that affect the abundan...

Rhyzopertha dominica (F.) is one of the primary pests in stored rice. Generally, pest control in the storage was done by spraying and fumigation using synthetic insecticide. The application of chemical insecticide using phosphine can cause resistant to insect pests and toxic to humans. Regarding the negative effect of insecticide application, the a...

Parasitic Hymenoptera is important natural enemies to control pest population but threatened by habitat transformation. It is important to know the sustainable management agroecosystem that may conserve beneficial insects. There is still minimum research about the effect of riparian buffers effect on Hymenoptera diversity. The objectives of this re...

Sustainable landscape consist of the healthy provision of ecological services and the improvement of local human well-being. However, transformation habitat often affects pollinators. There is still a lack of research about how far does pollinators presence is being changed by habitat types. The aim of this research is to investigate the consequenc...

Insects visit flowers not only to forage for nectar or pollen but also to search for hosts or prey, and to look for suitable habitats for breeding sites. In oil palm flowers, it has been documented that not all flower-visiting insects are pollinators, but some insects are recognized as predators, parasitoids or saprophages, which may affect the abu...

Parasitoids play an important role in controlling pests, including pests of oil palm. To maximize biological control technique using parasitoids, interactions between pests and parasitoids need to be studied. This research aimed to study parasitoid diversity and host-parasitoid interaction in oil palm plantation with the different management system...

The existence of natural habitat around agroecosystem plays a pivotal role in maintaining the presence of natural enemies especially parasitoids. Natural habitat can fail to support biological pest control in agroecosystem due to a particular condition. The objective of this research was to investigate the effect of natural habitat existence on par...

p>The complexity of agricultural landscape can affect biodiversity in agroecosystem. Complex landscape tend to have higher diversity and composition of spesies than simple landscape. The aim of this research was to study the diversity and species composition of parasitic Hymenoptera under different complexity of agricultural landscape. Field resear...

Invasive species have been known to cause biotic homogenization. The presence of Chromolaena odorata, an alien invasive weed, in agricultural habitat has outcompeted many crop plants. The presence of alien invasive weed creates a new trophic interaction especially with local herbivores as well as other associate insects. This study was aimed to inv...

• The expansion of agricultural fields is the main cause of landscape simplification and changes in the composition and configuration of landscapes. These landscape changes influence pests and their natural enemies, and may influence their interaction and the biological control services to which they contribute. However, the effects of landscape co...

In tropical regions, habitat change and fragmentation partly occur due to urbanization. This change of land-use can affect many ecosystem services and their providers, such as pollination and pollinators. Within agricultural systems, monoculture systems and pesticide application are the most detrimental to pollinators and insect communities. In thi...

p>Family Curculionidae is a group of beetles (Order Coleoptera) that have an important role in different ecosystems, either as herbivores or pollinators. Land-use change, mainly from natural forest to agriculture area can have negative affect on population of curculionid beetles. The objective of this research was to study seasonal diversity, both...

Effect of Natural Habitat on Diversity of Hemipteran Predator in Oil Palm Plantation. Utillization of natural enemies in controlling oil palm pests still encounters obstacles, in particular, how natural enemies can survive and establish in oil palm plantations. The existence of natural habitats around oil palm plantations can allegedly support the...

p> Elaeidobius kamerunicus Faust is an oil palm pollinator insect that lives on the male inflorescence and visits female inflorescence to pollinate due to attracted by its volatile compound. The number of fruit sets of oil palm relates to the population of E. kamerunicus on a plantation. The objective of this study was to investigate the effect of...

Oryzaephilus mercator (Fauvel) (Coleoptera: Silvanidae) is a postharvest pest of stored peanuts (Arachis hypogea L.). Although it is only a secondary pest, this insect causes extensive damage and reduces the quantity and quality of peanut kernels. The objective of this research was to study whether host preference and development of O. mercator dif...

Reclamation can be a pivotal process to return an ecosystem to its condition prior to human disturbance, by recreating a landscape so that its structure and function closely resemble a natural community. Unfortunately, there is a lack of empirical data as to whether reclamation efforts successfully establish sustainable of the ecosystem or not. The...

p>Presence of insects in agricultural habitat is affected by several factors such as natural habitat. The objective of this research was to study the effect of natural habitat on diversity and abundance of flower-visiting insects in cucumber fields. Ecological observation was conducted in 12 cucumbers fields located in regencies of Bogor, Cianjur,...

p>Presence of insects in agricultural habitat is affected by several factors such as natural habitat. The objective of this research was to study the effect of natural habitat on diversity and abundance of flower-visiting insects in cucumber fields. Ecological observation was conducted in 12 cucumbers fields located in regencies of Bogor, Cianjur,...

Presence of insects in agricultural habitat is affected by the surrounding circumstances such as the complexity and structure of landscape. Landscape structure is often formed as a consequence of the fragmentation of semi-natural habitat, which can negatively affect species richness and abundance of insects. This study was aimed to study the effect...

One possibility to protect the maize from storage pests is by developing genotypes that resistant to maize weevil (Sitophilus zeamais Motsch). The research was aimed to evaluate the susceptibility of several maize genotypes including local variety to the maize weevil. Six genotypes i.e. SJA, G10-12-20, G10-1-3, G10-1-7, G10-1-20 and G10-1-17 and To...

Reklamasi adalah salah satu teknik untuk memulihkan ekosistem yang rusak, dengan tujuan mengembalikan kondisi habitat, seperti atau menyerupai kondisi sebelumnya. Salah satu komponen habitat yang perlu dikembalikan adalah komunitas serangga. Penelitian ini bertujuan untuk mempelajari keanekaragaman, peranan fungsional, dan komposisi Coleoptera pada...

Ants are abundant in natural and managed tropical ecosystems and can have an impact on herbivorous arthropods, as well as plant pathogens. Although it has been shown for plants that the diversity of communities can result in improved ecosystem functioning, it remains uncertain how the species richness of ants affects multiple ecosystem services and...

Smallholder-dominated agricultural mosaic landscapes are highlighted as model production systems that deliver both economic and ecological goods in tropical agricultural landscapes, but trade-offs underlying current land-use dynamics are poorly known. Here, using the most comprehensive quan-tification of land-use change and associated bundles of ec...

Primer pair sequences for plants, bacteria, and archaea

Supplementary Figures 1 - 9, Supplementary Tables 1 - 5, Supplementary Note 1 and Supplementary References

Lepidopteran community and its parasitoid on cucumber field in Bogor, Sukabumi and Cianjur District, West Java. Cucumber is one of horticultural commodities that are widely cultivated in Indonesia, but information related to Lepidoptera pests and their parasitoids are limited. The aim of this study was to obtain information about Lepidopteran commu...

We studied the distribution of the Yellow Crazy Ant (Anoplolepis gracilipes) Smith (Hymenoptera: Formicidae) in Bogor Botanical Garden (BBG). Biological invasions by A. gracilipes can negatively impact other species. Individual nests of this ant can form supercolonies within which aggression is absent, intraspecific aggression occurs between worker...

More-diverse pollinators improve crop yields It is known that increased pollinator diversity can improve the yield of agricultural crops. However, how best to both produce food and maintain diversity is still debated. Garibaldi et al. show that on small farms, which provide food for the most vulnerable populations globally, pollinator diversity can...

Ecological intensification, or the improvement of crop yield through enhancement of biodiversity, may be a sustainable pathway toward greater food supplies. Such sustainable increases may be especially important for the 2 billion people reliant on small farms, many of which are undernourished, yet we know little about the efficacy of this approach....