Effect of multiple infestations from insect pests and other stresses to irrigated rice in the Philippines: II. Damage and yield loss

作者: J. A. Litsinger , J. P. Bandong , B. L. Canapi

DOI: 10.1080/09670874.2010.537792

关键词: Rhizoctonia solaniAgronomyAbiotic componentScirpophaga incertulasCnaphalocrocis medinalisNarangaBiologyGreen manureStemborerCrop

摘要: Single and multiple species infestations of common insect pests were compared in terms yield loss involving crop stresses that included weeds, sheath blight (Rhizoctonia solani Kunh.), drought, deficiencies N solar radiation addition to pest infestations. Losses from the various combinations found be additive, antagonistic, or synergistic. Most produced additive losses, with balance being so implying compensation occurred. Combinations damage other biotic abiotic mostly synergistic which significantly greater than ones. Among pests, losses resulted yellow stemborer (Scirpophaga incertulas [Walker]) attacking two rice growth stages while same was true for leaffolder (Cnaphalocrocis medinalis [Guenee]). Only combination whorl maggot (Hydrellia philippina Ferino) defoliators (a mixture Naranga aenescens Moore and...

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