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All Journal JPT : JURNAL PROTEKSI TANAMAN (JOURNAL OF PLANT PROTECTION) Wallacea Plant Protection Journal
Ravindra Chandra Joshi
Philippine Rice Research Institute, Philippines
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science

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Occurrence and identification of aphid (Hemiptera: Aphididae) species on several host plants in the main campus of Hasanuddin University, Makassar Rahmat Rahmat; M. Takwa; Athiyyah Salsabilla Lalisu; A. M. Bintang Ramadhan Galigo; Wardani Syahrani; Ravindra Chandra Joshi; Ito Fernando; Ahwiyah Ekawaty Said; Yani Maharani; M. Bayu Mario
Wallacea Plant Protection Journal Vol. 2 No. 1 (2026)
Publisher : Department of Plant Pest and Diseases, Faculty of Agriculture, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64128/wppj.v2i1.51279

Abstract

Aphids (Hemiptera: Aphididae) are important agricultural pests that damage host plants and transmit plant viruses. A qualitative survey was conducted from March to May 2026 across various zones of the Hasanuddin University campus, Makassar, Indonesia to document aphid occurrence and host associations. Aphid colonies were collected purposively from agricultural crops, ornamental plants, and weeds, and species identification was performed through microscopic examination of diagnostic morphological characters. Only one species, Aphis gossypii Glover, was identified from  the collected aphid colonies. This species was associated with Capsicum annuum, C. frutescens, Melothria pendula, and Ficus benjamina. These observations provide baseline information on the occurrence and host associations of A. gossypii within the campus environment and highlight the potential role of weeds and ornamental plants as alternative hosts supporting aphid persistence. The present inventory provides preliminary information for future monitoring and integrated pest management studies.
Field evaluation of the olfactory response of Leptocorisa spp. to shrimp and invasive apple snail carcass baits Waridha Syahrur Rahmawati; M. Bayu Mario; Nuramaliya Nuramaliya; Ravindra Chandra Joshi; Ahdin Gassa
Wallacea Plant Protection Journal Vol. 2 No. 1 (2026)
Publisher : Department of Plant Pest and Diseases, Faculty of Agriculture, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64128/wppj.v2i1.51302

Abstract

Rice bugs (Leptocorisa spp.) are destructive agricultural pests that inflict severe damage on paddy crops from the flowering stage through the milk ripening stage. Heavy infestations often result in devastating crop failure, compromised grain quality, and reduced overall agricultural yield. To mitigate these economic losses, developing environmentally sustainable management strategies that suppress pest populations without disrupting the surrounding ecosystem is crucial. This study evaluated the field efficacy of olfaction-based traps baited with decaying animal carcasses to actively lure and capture rice bugs. The field experiment was conducted on a 30 × 15 m rice field plot cultivated with the Ciliwung Super cultivar using a direct-seeding system. The custom traps were fabricated from 1,500 mL plastic bottles, each loaded with 150 g of bait consisting of either decaying shrimp or invasive apple snail (Pomacea spp.) carcasses, with ten experimental replications per treatment. Capture rates were recorded at three-day intervals, whereas damage intensity was assessed at seven-day intervals. The experimental results demonstrated that both shrimp and invasive apple snail carcass baits effectively attracted Leptocorisa spp. adults. Although the difference was not statistically significant, shrimp carcass bait showed a numerically higher attraction rate than invasive apple snail bait, suggesting its potential as an organic attractant for rice bugs monitoring and management.
New Record of the Egg-larval Parasitoid, Chelonus formosanus Sonan of Fall Armyworm, Spodoptera frugiperda (J.E. Smith) in the Philippines Orlando Adona Calcetas; Ravindra Chandra Joshi; Ankita Gupta; Avinjikkattu Parambil Ranjith; Mary Ann Madrid; Joash Fameronag
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 7 No. 2 (2023): December 2023
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.7.2.103-114.2023

Abstract

The egg-larval parasitoid on fall armyworm (FAW), Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) have not reported in the Philippines. This paper summarizes the global biological information on two species of Chelonus and their role in the regulation of FAW. The FAW egg masses and larvae were collected in the corn plantations inside the Lipa Agricultural Research Station, Marawoy, Lipa City, Batangas. The collected egg masses and larvae were reared at the Entomology Laboratory of the Department of Agriculture-Regional Crop Protection Center IVA. The larvae of FAW were observed for the emergence of parasitoids. Two cocoons of the parasitoid from the rearing cages were obtained for species determination. Three adults from the emerged parasitoids, each male and female, were initially preserved and labeled. Color images of habitus and other morphological characters of the parasitoid were taken using a DSLR camera attached to an Olympus SZ61-60 microscope. This research found two species that emerged from FAW: Chelonus formosanus and the new record of C. semihyalinus. We also highlight the need for more research in the Philippines on exploring the diversity of indigenous natural enemies, the development of mass-rearing techniques, and their utilization to manage fall armyworms.
Co-Authors A. M. Bintang Ramadhan Galigo Ahdin Gassa Ahwiyah Ekawaty Said Ankita Gupta Athiyyah Salsabilla Lalisu Avinjikkattu Parambil Ranjith Ito Fernando Joash Fameronag M. Bayu Mario M. Bayu Mario M. Takwa Mary Ann Madrid Nuramaliya Nuramaliya Orlando Adona Calcetas Rahmat Rahmat Wardani Syahrani Waridha Syahrur Rahmawati Yani Maharani