No.63 (2012)

Contents

KIDOKORO T. : What Rice Insect Pests Tell Us about Regional Differences in Ecological Traits and Long-Term Population Dynamics in the Cool Areas of Japan 1

YAMADA, M., SUZUKI, Y., OKAZAKI, K. and KOIZUMI, S. : A Simple Method of Estimating Severity of Rice Panicle Blast 17

KOBAYASHI, T., KANEMATSU, S. and SEKIYA, H. : Control Effect of Rice Blast Disease with Silicon Materials That Can Be Used by Organic Agriculture 22

YAMANA, T. : Reassesment of High-Ridge Cultivation Method Predisposing Winter Wheat to Sclerotinia Snow Mold 27

TODAI, T. : Yield Loss by Bacterial Stem Rot of Azuki Bean 32

FUJINE, O. : Studies of the Experimental Conditions for Testing Fungicides Effect on the Potato Tuber Rot Caused by Phytophthora infestans 37

SHIMIZU, M. : Thermal Death Time of Potato Powdery Scab Pathogen, Spongospora subterranea 42

NAKAYAMA, T. and MURAI, M. : Effect of Silage Fermentation on Survival of Spongospora subterranea Contaminated in Potato Grounds 46

NISHIWAKI, Y. : Control of Corky Root and Influence on Growth of Tomato Using Root Stock in Hokkaido 52

KONDO, M. : Residual Activity of Several Fungicides to Thiophanate-Methyl, Boscalid, Strobilurin-Resistant Isolates of Cucumber Corynespora Leaf Spot Fungus 57

IWADATE, Y. : Monosporascus Root Rot of Summer-Autumn Harvest Cucumber on Open Field Caused by Monosporascus cannonballus 60

SHISHIDO, K., SUZUKI, Y., KIMURA, Y. and NAGASAKA, A. : Effects of Species and Temperature Conditions on the Bioassay for Black Root of Cucurbits 65

KONDO, T. : Occurrence of Mosaic Disease in Melon Caused by Lagenaria Strain of Cucumber mosaic virus in Aomori Prefecture 70

ONODERA, K., TABERI, K. and TORIKOSHI, M. : Relationship between Seed Tuber Production System of Chinese Yam and Incidence Rate of Chinese yam necrotic mosaic virus（CYNMV）in Hokkaido Tokachi District 74

TAKAHASHI, C. and TSUKIBOSHI, T. : Southern Blight, a New Disease of Water Dropwort Caused by Sclerotium rolfsii in Japan 78

TAKAHASHI, C. and INAO, E. : Control Effectiveness against Soil-Borne Diseases and Weed Seeds and Propagules in Conversed Field of Water Dropwort by Soil Steaming 82

MISAWA, T. and IZUMI, S. : Leaf Blight and Damping-Off of Potherb Mustard（Brassica rapa subsp. lancinitolia）and Komatsuna（Brassica rapa var. perviridis）Caused by Rhizoctonia solani AG-2-1 87

MISAWA, T., NISHIKAWA, J. and KAYAMORI, M. : Occurrence of Black Leaf Spot in Strawberry Cultivar ‘HS-138’ and Morphological Characteristics of Causal Fungus 92

IWADATE, Y. : Varietal Differences in Fusarium Wilt Resistance in Three Main Cultivars of Everbearing Strawberries in Iwate Prefecture 97

SUZUKI, Y., SHISHIDO, K., YAMADA, M. and OKAZAKI, K. : Influence of Soil pH Amendment with Converter Furnace Slag on Incidence of Fusarium Wilt of Strawberry 100

YAMAMOTO, H., KIKUCHI, H. and SENDA, M. : Viruses Occurring in Gentian in Akita Prefecture, Japan 104

YAMAMOTO, H. : Detection of Broad bean wilt virus 2, Clover yellow vein virus, Cucumber mosaic virus and Gentian mosaic virus in Gentian by Multiplex RT-PCR 107

AKAHIRA, T., YAMAMOTO, S. and NAKAMURA, H. : First Report on Leaf-Roll Dwarf in Apple Caused by Geniculosporium sp. in Aomori Prefecture 110

ITO, D., KAMIHARAKO, T., FUTATSUMORI, Y. and IZUMI, S. : Disease Occurrence in Organic Culture of Apple Sprayed with Brewed Vinegar and Electrolyzed Acid Water 115

CHU, E. and NAITOH, M. : Analysis of Cause of Outbreak of Disease in Spike of ‘Campbell Early’ Grape by Gray Mold in Aomori Prefecture in 2009 According to Recreation of Weather of That Year 121

TAKAHASHI, Y. and KIKUCHI, E. : Search for Effective Pesticides against Rice Stem Maggot, Chlorops oryzae 124

HASHIMOTO, T. : Effects of the Number of Split-Hull Paddies of Rice Plant on Nymphal Growth and Fecundity of Rice Leaf Bug, Trigonotylus caelestialium（Heteroptera: Miridae）in Hokkaido Prefecture 127

IWASAKI, A. and HASHIMOTO, Y. : Estimation of Major Injury Period of Rice Leaf Bug, Trigonotylus caelestialium（Kirkaldy）（Heteroptera: Miridae）in Hokkaido 132

YOKOTA, Y., MURAKAMI, T. and OHTOMO, R. : Effect of High Temperature from July to August on the Population Density of Stenotus rubrovittatus in Paddy Fields 136

MURAKAMI, T., OHTOMO, R. and YOKOTA, H. : Efficiency of Forecasting Infestation Infestation by Stenotus rubrovittatus Using Pheromone Trap 141

YOKOYAMA, K., NAKASHIMA, T., SATO, T. and YANASE, M. : Estimation of Period of Occurrence of Green Rice Caterpillar, Naranga aenescens, Using Mesh Temperature Data 145

MITAMURA, T., ARAKAWA, A., KISHI, M., YAMADA, M. and OKAZAKI, K. : Survey of Aquatic Insects in Paddy Fields Using Underwater Light Traps 150

ITOU, K. and NARABU, T. : Suppressive Effect of Short-Term Cultivation of Solanum sisymbriifolium on Potato Cyst Nematode Population 157

TAKASHINO, K., ITO, M. and KONISHI, K. : Carabid Beetles in Potato Fields with and without Wild Oats（Avena fatua cv. Hay-Oats）Living Mulch 160

KITSUNEZUKA, K., KASHIN, J. and HATANAKA, A. : Overwintering of the Bean Webworm, Pleuroptya ruralis, and its Occurrence in Soybean Fields in Miyagi Prefecture 165

IWASAKI, A., TAKABAYASHI, T., ONUMA, C. and Miyake, N. : Confirmation of Field Oviposition of Bean Weevil, Acanthoscelides obtectus, on Phaseolus vulgaris and Estimation of Overwintering Place of the Pest in Hokkaido, Japan 171

SAKURAI, T., KATSUYAMA, N. and TSUDA, S. : The Effective Number of Haplothrips brevitubus Adults Released to Control Frankliniella occidentalis on a Variety of Green Pepper Grown in Greenhouse 177

MIYATA, M., MIYAMOTO,T. and YAMANAKA, S. : Control of Western Flower Thrips, Frankliniella occidentalis, by Granular Formulation of Entomopathogenic Fungus, Metarhizium anisopliae, in Eggplant Field 181

TAKEZAWA, Y. : Monitoring of Synthetic-Pyrethroid –Insecticide– Resistant Thrips tabaci Using Genetic Diagnosis in Sorachi and Kamikawa Districts of Hokkaido 184

MASUDA, T. : First report of the Detailed Biology of Depressaria petronoma Meyrick（Lepidoptera: Elachistidae: Depressariinae）on Cultivated Water Dropwort, Oenanthe javanica（Blume）DC, in Miyagi Prefecture, Japan 189

ARAI, T., TAKANASHI, M., IHARA, F. and YAGINUMA, K. : Occurrence of Fruit Damage and Optical Timing of Insecticide Applications for Control Period of Fruit-Infesting Lepidopterous Pests in Mating-Disruptor-Treated Apple Orchards 193

ARAI, T., TAKANASHI, M., IHARA, F. and YAGINUMA, K. : Occurrence and Supplementary Control of Carposina sasakii in Mating-Disruptor-Treated Apple Orchards 199

ISHIGURI, Y. : Mating Frequency and Reproductive Performance of Female Peach Fruit Moth, Carposina sasakii 205

ISHIGURI, Y. : Effects of Chlorantraniliprole, an Anthranilic Diamide Insecticide, on Reproductive Success of Peach Fruit Moth, Carposina sasakii 209

HADA, H. : Monitoring Survey of Predatory Mite Living in Apple Orchard in Iwate Prefecture 215

TAGUCHI, S. : Control Effectiveness of Stalkborer, Cossus insularis（Staudinger），by Improved Pouring Processing Method in Trunk Tree of Entomopathogenic Nematode, Steinernema carpocapsae, on Japanese Pear Trees 218

MURAI, T. and NARITA, O. : Identification of Species and Monitoring Adult with Synthetic Sex Pheromone of Fruit- Boring Lepidopteran Pests in Plum Prunus salicina Orchards in Nanbu Region of Aomori Prefecture 223

WATANABE, K., YOSHITAKE, H. and HORI, Y. : Occurrence of Atrachya menetriesi（Coleoptera: Chrysomelidae）Injurious to Safflower（Carthamus tinctorius） 227

HADA, H. : Control Effectiveness of Several Types of Insecticide against Gynnidomorpha rubricana 230

SHIRAISHI, A. : Annual Trend of Number of Horse Flies Captured by Using Boxtraps in Grazing Land in Iwate-Cho, Iwate 233