Article
Food Science & Technology
Yajun Yang, Zhihong Wu, Xiaochan He, Hongxing Xu, Zhongxian Lu
Summary: This study investigated the processing patterns of different Cry toxins in Cnaphalocrocis medinalis midgut extracts and evaluated the impact of Cry toxins degradation on their potency against C. medinalis. The results showed that Cry toxins could be degraded by C. medinalis midgut extracts, and this degradation differed in terms of time and concentration effects. Bioassays demonstrated that the toxicity of Cry toxins decreased after digestion by midgut extracts. These findings suggest that midgut extracts play an important role in the action of Cry toxins against C. medinalis.
Article
Plant Sciences
Boon Huat Cheah, Wen-Po Chuang, Jing-Chi Lo, Yi Li, Chih-Yun Cheng, Zhi-Wei Yang, Chung-Ta Liao, Ya-Fen Lin
Summary: Accumulated metals in plants may protect against herbivorous insects, but their effects on rice growth and yield vary. High levels of copper can inhibit the growth and development of pests, but also adversely affect rice growth. Moderate levels of copper have no adverse effects on rice growth and yield.
Article
Entomology
Jiawen Guo, Fan Yang, Haiyan Zhang, Peijiong Lin, Baoping Zhai, Zhongxian Lu, Gao Hu, Pengcheng Liu
Summary: Despite the lack of understanding regarding the relationship between reproduction and multi-stop flight in insects, this study found that the rice leaf roller is able to complete reproductive maturation during multi-stop migratory flight without compromising migration performance.
Article
Pediatrics
Partini Pudjiastuti Trihono, Jeanne Laurensie Sihombing, Rismala Dewi
Summary: This study evaluated the accuracy of blood pressure to height ratio as a tool for screening high blood pressure in Indonesian adolescents and found that it has high sensitivity and specificity for detecting elevated blood pressure in Indonesian adolescents aged 15 to 18 years.
PAEDIATRICA INDONESIANA
(2023)
Article
Zoology
Muhammad Rizwan, Bilal Atta, Misbah Rizwan, Arshed Makhdoom Sabir, Muhammad Tahir, Muhammad Sabar, Muddassar Ali, Muhammad Yasir Ali
Summary: Adding silicon can reduce the damage caused by rice leaffolder, extending its developmental stage and reducing survival rate. However, silicon treatment increases the consumption of green matter by leaffolder larvae.
PAKISTAN JOURNAL OF ZOOLOGY
(2022)
Article
Toxicology
Ramakrishnan Ramasubramanian, Sengodan Karthi, Sengottayan Senthil-Nathan, Haridoss Sivanesh, Narayanan Shyam Sundar, Vethamonickam Stanley-Raja, Govindaraju Ramkumar, Kanagaraj Muthu-Pandian Chanthini, Prabhakaran Vasantha-Srinivasan, Khaloud Mohammed Alarjani, Mohamed S. Elshikh, Ahmed Abdel-Megeed, Patcharin Krutmuang
Summary: Chemical pesticides, while effective, are considered unfriendly to the environment in controlling agricultural diseases and pests. Bio-control agents, such as Bacillus species, are seen as sustainable and safe alternatives. In our study, we focused on the application of Bacillus subtilis as a potential bio-control agent against the rice leaffolder pest, Cnaphalocrocis medinalis. The results showed that larvae fed with B. subtilis-amended diet had significantly reduced growth efficiency, highlighting the importance of B. subtilis in managing leaffolder disease.
Article
Entomology
Gothandaraman Rajadurai, Duraialagaraja Sudhakar, Shanmugam Varanavasiappan, Natarajan Balakrishnan, Varatharajalu Udayasuriyan, Narayanasamy Natarajan
Summary: The oviposition of rice leaffolder moths is influenced by the suitability of the host plant for their offspring development. A study was conducted to investigate the effects of expressing the insecticidal protein Cry2AX1 on the oviposition and larval development behavior of rice leaffolders on transgenic rice plants. The Cry2AX1 protein expression in the transgenic plants ranged from 18 +/- 0.01 to 128 +/- 0.06 ng/gram of fresh leaf tissues. While the female adults showed no preference for oviposition between transgenic and non-transgenic plants, significant differences in larval survival and adult emergence indicated the negative impact of transgenic plants on larval and adult growth and development.
INTERNATIONAL JOURNAL OF TROPICAL INSECT SCIENCE
(2023)
Article
Plant Sciences
Chia-Hung Hsieh, Tzu-Wei Guo, Kun-Yu Tu, Chung-Ta Liao, Wen-Po Chuang
Summary: This study investigated the population genetic structure of Cnaphalocrocis medinalis in Taiwan. The results showed that all C. medinalis specimens in Taiwan belonged to a single clade, indicating no significant population structure. There was also no significant genetic differentiation between C. medinalis populations in Taiwan and neighboring regions, suggesting a common origin. The extremely low genetic diversity of C. medinalis in East Asia may be due to population expansion after a recent founder effect.
Article
Entomology
Ze-Jie Zhang, Lang Xia, Juan Du, Shang-Wei Li, Feng Zhao
Summary: In this study, the chitin synthase B gene from the rice leaf folder was cloned and characterized, showing its essential role in the growth and development of the pest. Silencing this gene through RNA interference led to larval lethality, suggesting a potential new approach for green control of the rice leaf folder.
JOURNAL OF ASIA-PACIFIC ENTOMOLOGY
(2021)
Proceedings Paper
Agricultural Economics & Policy
T. Abdullah, T. Kuswinanti, S. N. Aminah, Asman Asman
Summary: The research demonstrated that Beauveria bassiana is effective and safe in managing the population of rice leaf roller Cnaphalochrosis medinalis in the rice fields.
INTERNATIONAL CONFERENCE ON ENVIRONMENTAL ECOLOGY OF FOOD SECURITY
(2021)
Article
Entomology
Harmandeep Singh, Preetinder Singh Sarao, Neerja Sharma
Summary: Studying the resistance sources against rice leaffolder revealed differences in expression of antibiosis parameters and biochemical constituents among different rice genotypes, offering potential for developing durable leaffolder resistant varieties.
INTERNATIONAL JOURNAL OF TROPICAL INSECT SCIENCE
(2022)
Article
Agronomy
Rajib Kundu, Arindam Sarkar, Ratneswar Poddar, Subhendu Jash, Golam Moinuddin, Arup Sen
Summary: The indiscriminate use of inorganic chemicals in nutrient-poor Alfisols in India has led to a decline in soil health and crop yield. A study was conducted to examine the effects of different levels of inorganic fertilizer and bio-formulations on kharif groundnut in Red and Laterite soils from 2018 to 2020. The results showed that a higher dose of inorganic fertilizer combined with liquid bio-formulations led to improved nutrient uptake, crop growth, yield, and quality in groundnut. Groundnut responded well to higher levels of inorganic fertilizer and bio-formulations, with a significant increase in nutrient uptake.
ARCHIVES OF AGRONOMY AND SOIL SCIENCE
(2023)
