Abstract Jajar legowo (Jarwo) is a rice planting system that widely practiced by farmers, but information regarding its effects on pests and natural enemies limited. This study aimed to identify how the Jarwo affects population damage intensity of yellow stem borer ( Scirpophaga incertulas ) predators. The research was conducted in Wonosari-Klaten, Central Java, during dry season 2020. 2:1 used...

Rice (Oryza sativa L.,) plants release a complex profile of volatile organic compounds. Present study investigates the differences in compounds from four rice landraces viz., Karuthakar, Norungan, Thavala Kanan and Varappu Kudaichan each under conditions like healthy, mechanically damaged, ones infested by brown plant hopper Nilaparvata lugens Stal yellow stem borer Scirpophaga incertulas (Wlk....

Yellow stem borer, Scirpophaga incertulas (Walker) is monophagous insect pest causing serious damage to rice growers of plain regions Nepal. This study was done evaluate the host preference yellow borer various genotypes rice. The research design employed Randomized Complete Block Design (RCBD) with seven treatments and three replications in kharif season 2021. Rice varieties selected were Sabi...

With the widespread adoption of high yielding rice (Oryza sativa L.) varieties and accompanying changes in cultural practices, leaf folder [Cnaphalocrocis medinalis (Guenee)] yellow stem borer [Scirpophaga incertulas (Walker)] has attained status major pests influence yield if proper timely management practices are not adopted. For effective these pests, identification new molecules with novel ...

This paper discusses the success of an unintended area-wide integrated pest management (IPM) for Chilo suppressalis in Japan. Chilo was considered as one of the country’s major rice insect pests causing significant yield loss during the pre-war period, along with Scirpophaga incertulas . Chilo population density declined through the years, which was considered to be induced by modern farming te...

We quantiÞed variation in performance under greenhouse conditions among seven populations of Scirpophaga incertulas (Walker) from Luzon Island, Philippines, on three rice varieties: ÔIR58Õ transformed with the cry1Ab gene from Bacillus thuringiensis Berliner, and nontransgenic IR58 and IR62. On IR62, S. incertulas performance did not differ among provinces for any of the 10 parameters measured,...

Half lives of a range of Lepidopteran sex pheromone components incorporated into plasticized polyvinylchloride (PVC)-resin formulations were determined under a range of conditions in a laboratory wind tunnel and in the field in Egypt, Pakistan and India. Increasing aliphatic chain length by two methylene groups increased half lives by a factor of approximately 7.5 at 27 1C. Half lives of satura...

Scirpophaga incertulas Walker is an important agricultural pest in Asia. Only few studies are available on its long-term population dynamics under climate warming. In this study, we used the linear and generalized additive models (GAMs) to analyze the historical dataset of >50 years on this pest at Xinfeng County of Jiangxi Province, China. The main objective of this study was to explore the ef...