No.53 (2002)

Contents

NEMOTO, H.: A Present Status and Problems of Use of Natural Enemy in Japan 1

HAYASAKA, T.: Distribution of Rice Sheath Blight in a Paddy Field and Yield Loss by the Disease 9

HAGA, H., SAID, K., MATSUHASHI, M. and FUKAYA, T.: Outbreak of Rice Leaf Blast in the Southern Part of Akita Prefecture in 2001 and Its Main Cause 12

ASHIZAWA, T., ZENBAYASHI, K. and KOIZUMI, S.: Differences in Blast Resistance between Sasanishiki and Hitomebore Near Isogenic Rice Lines under a Severe Blast Epidemic 16

ZENBAYASHl, K., Fe A. dela PENA, ASHIZAWA, T., and KOIZUMI, S.: Distribution of Pathogenic Races of Rice Blast Fungus (Pyricularia grisea) in Hokkaido and Tohoku Districts in 2001 19

KOIZUMI, S., Fe A. dela PENA, Juliet P. RILLON, Jennifer J. TAGUBASE, Hilario C. dela CRUZ, Jr., Renando 0. SOLIS, Jonathan M. NlONES, Thelma F. PADOLINA, MORIYA, K., ASHIZAWA, T., and ZENBAYASHI, K.: Variation of Field Resistance to Leaf Blast in the Japanese Upland Rice Cultivar Kuroka in the Philippines 24

NEMOTO, F. and YAMADA, M.: Wide-Area Control of Rice Blast Disease Using Radio-Controlled Helicopter 29

FUKAYA, T., HOSAKA, M., SAYAMA, A. and FUJII, N.: Control of Rice Leaf Blast with Reduced Side Dressing of Probenazole Water Dispersible Granules 33

OHBA, A.: Adaptability of Cultivation of Differential Rice Varieties Using Plant Growth Retardant for Identification of Pathogenic Races of Blast Fungus in Miyagi Prefecture 37

YANASE, M., KUROSAKA, M., NAGAMINE, J., TAKEDA, T. and TANAKA, T.: Behavior of Aerial-Applied Pesticides in River Water 41

SATOU, M., HORIUCHI, S. and YAMAUCHI, N.: Screening of Resistant Spinach Cultivars to New Race of Downy Mildew 46

KATSUBE, K. and NEKODUKA, S.: Control of Damping Off and Root Rot Diseases of Spinach with Hymexazol Dust Formulation 49

UEDA, K., SATOU, G. and SAYAMA, A.: Control of Fusarium Wilt of Spinach by Soil Reduction in Akita Prefecture 52

YOSHIDA, T., NOMURA, Y., KIMURA, T. and KADOTA, I.: Wilting of Cabbage Seedlings Caused by Application of Culture Filtrate of Nonpathogenic Strains of Fusarium oxysporum f. sp. conglutinans 55

HORIKOSHI, N. and TAIRAKO, K.: Occurrence of Clubroot in Japanese Radish Caused by Plasmodiophora brassicae Woronin in Fukushima 58

SAYAMA, M. and TAKENAKA, S.: Effect of Methionine Treatment on Damping-Off of Sugar Beet Caused by Aphanomyces cochlioides 61

SlMIZU, M., MOMONO, H. and IKEDA, S.: Effect of Low-Volume Application of Fungicides on Control of Cercospora Leaf Spot of Sugar Beet 65

KATOH, T., KANNO, H., SHINOHARA, H. and SATO, K.: Occurrence of Bacterial Soft Rot in Malabar Nightshade (Basella rubra L.) Caused by Erwinia chrysanthemi 70

KATOH, T., KIKUCHI, S. and SATO, K.: Studies on the Occurrence and Control of Watermelon Bacterial Fruit Blotch 3. An Effective Disinfection Method for Grafting Knives and Pins 74

SATOU, M., HORIUCHI, S. and YAMAUCHI, N.: Downy Mildew of Kohlrabi [Brassica oleracea L. (gongylodes group)] Caused by Peronospora parasitica (Persoon:Fries) Fries 77

FUJII, N., SHINOHARA, H., ENYA, L, SAYAMA, A., FUKAYA, T. and NISHIYAMA, K.: Occurrence of Bacterial Soft Rot of Asparagus (Asparagus officinalis L.) in Akita Prefecture 80

TAIRAKO, K. and HORIKOSHI, N.: Occurrence of Unidentified Stem Rot on Ginseng (Panax ginseng Meyer) 85

HORITA, H. and YASUOKA, S.: Seed Transmission of Black Streak of Edible Burdock 88

YASUOKA, S. and HORITA, H.: Factors Affecting Black Streak Disease Development of Edible Burdock 91

IKETANI-S, M.: Resistance of Potato Cultivars to Potato Powdery Scab Caused by Spongospora subterranea (Wollroth) Lagerheim 95

OKADA, T., KODAMA, F., FUJITA, S., KONDO, N. and NAITO, S.: Effect of Thiram on Seed Decay and Seedling Blight of Adzuki Bean Caused by Pythium spp. 99

SOUMA, J. and TAKEDA, N.: Occurrence of Soybean Root Necrosis Caused by Calonectria ilicicola in Hokkaido 101

YUKITA, K.: Rough Bark as Related to Infection Site of Valsa Canker on Apple Trees 105

NAKAZAWA, N. and HARADA, Y.: Growth Inhibition of Valsa ceratosperma by Fungal Isolates from Apple Trees 109

SATO, Y. and MIZUNO, N.: Control of Apple Blotch Caused by Diprocarpon mali with Various Fungicides 112

SUZAKI, K. and YOSHIDA, K.: Fungicide Spraying during Ascospore Discharge by the Causal Fungus of Apple Blotch (Diplocarpon mali) Suppresses Development of the Disease 115

TSUSHIMA, Y. and YUKITA, K.: Isolates of Apple Bitter Rot Fungi Collected from Apple Orchards in Aomori 118

AKAHIRA, T. and YUKITA, K.: Population Structure of Helicobasidium mompa in Apple Orchards 122

YUKITA, K. and AKAHIRA, T.: A Method of Inoculating Violet Root Rot Helicobasidium mompa into the Apple Rootstock Malus prunifolia 126

FUKAYA, M. and TAKAHASHI, I.: Efficacy of TPN for the Control of Entomosporium Leaf Spot of Pear 131

SATO, K. and KATOH, T.: Development of Physalospora Canker in Fruit Ripening Period of Pear 'La France' and a Method for Fruit Sorting at Shipping 134

KANNO, E., ITO, K., SHINOHARA, H. and SASAKI, M.: Occurrence of Peach Sudden Death Syndrome in Fukushima Prefecture and a study of Causal Pathogenic Bacteria 137

SUGIYAMA, S.: Control of Carnation Stem Rot by Fungicide Dipping of Plug Seedlings 141

ISHIKAWA, K., FUJIMURA, T., SUGIYAMA, S., SATO, E., KAWASHIMA, K., AIZU, H. and FUKUSHI, Y.: Occurrence of Tomato Spotted Wilt Virus in Flowers in Aomori 144

SATOU, M., HORIUCHI, S. and YAMAUCHI, N.: Powdery Mildew of African Violet(Saintpaulia ionantha H. Wendl.) 149

SUGAWARA, K., CHIKUO, Y., IZUTSU, S. and HAGIWARA, H.: Gray Mold of Hellebore and Rock Isotome Caused by Botrytis cinerea. 152

SUGA, C., TSUKIJI, K. and TAKEDA, S.: Effects of Pesticides on Rate of Emergence of Dragonfly Larva 155

SAITO, Y., TOMINAGA, T. and NAKAMINAM1, H.: Factors Leading to the Decreased Pecky Rice Caused by Stink Bugs in Iwate in 2001 158

OOWASHI, T. and SUZUKI, Y.: Relation of Pecky Rice Occurrence Caused by Rice Bugs to Weather Conditions 162

NIIYAMA, T. and IITOMI, A.: Susceptibility of the Rice Leaf Bug, Trigonotylus caelestialium (Heteroptera: Miridae) to Major Insecticides 165

WATANABE, K., ISHII, S. and DOMON, K.: Control of the Rice Leaf Bug, Trigonotylus caelestialium (Kirkaldy) (Heteroptera: Miridae) , by Cultivating Upland Field 168

TAKITA, M.: Influence of Injury Time on Occurrence of Pecky Rice Caused by the Rice Leaf Bugs, Trigonotylus coelestialium (Kirkaldy) (Heteroptera: Miridae) , in a Paddy Field 173

KlKUCHI, A. and KOBAYASHI, T.: Preference of Trigonotylus caelestialium (Kirkaldy) (Heteroptera: Miridae) to Autumn Weeds as Food 176

ISHIOKA, M., KIMURA, T., FUKUSHI, Y., ICHITA, T. and MATSUDA, M.: Outbreak of the Armyworm, Mythimna separata, in Aomori in 2001 and its Insecticide Susceptibility 178

OHTOMO, R. and CHIBA, T.: Characterization of Infestation by Oriental Corn Borer, Ostrinia furnacalis in Millet 183

MIZUKOSHI, T.: Developmental Period and Adult Longevity of Oviparous Female and Male of the Foxglove Aphid, Aulacorthum solani (Kaltenbach) (Homoptera: Aphididae) 187

MIZUKOSHI, T.: Seasonal Changes in the Number of the Foxglove Aphid, Aulacorthum solani (Kaltenbach) (Homoptera: Aphididae), Alate Caught in Yellow Water Pan Traps in Potato Field and Weedy Field 191

ONO, T., KIDOKORO, T. and OYAMA, J.: Summer Outbreak of the Foxglobe Aphid, Aulacorthum solani, in Soybean Fields 194

SATO, T., UENO, K., ABE, 0., GOTO, S. and SAITO, T.: Bionomics and Control of the Foxglove Aphid, Aulacorthum solani (Kaltenbach), on Soybean I. Seasonal Occurrence and Influence of Meteorological Factors on Outbreaks 199

DOMON, K., ITO, S., WATANABE, K. and KUSADA, H.: Bionomics and Control of the Foxglove Aphid, Aulacorthum solani (Kaltenbach), on Soybean II. Proper Application Timing for Control 203

UENO, K., SAITO, T., CHUBA, R., ABE, 0., SATO, T. and GOTO, S.: Bionomics and Control of the Foxglove Aphid, Aulacorthum solani (Kaltenbach), on Soybean III. Susceptibility of the Foxglove Aphid to Insecticides and Control Effects of Ethofenprox 206

UENO, K., SAITO, T., ABE, 0., SATO, T. and GOTO, S.: Bionomics and Control of the Foxglove Aphid, Aulacorthum solani (Kaltenbach), on Soybean IV. Effect of Foliar Spray Insecticides on the Foxglove Aphid in the Field 209

KAKIZAKI, M.: Suppression Effects on Populations of the Cabbage Armyworm, Mamestra brassicae, and the Flax Budworm, Heliothis maritima adaucta (Lepidoptera: Noctuidae), by Mating Disruption Using the Sex Pheromone 213

SATO, Y., TAKAHASHI, T. and TSUKIJI, K.: Demonstration of the Greenhouse Whitefly, Trialeurodes vaporariorum, Control in Greenhouse-Raised Tomatoes by Augmentative Release of Encarsia formosa and Use of Insect-Proof Net 216

Cheng Yi CAI, KONNO, Y. and MATSUDA, K.: Feeding Reponses of Helicoverpa armigera and Helicoverpa assulta to Solanaceae Plants 221

KUSADA, H., ITCH, S. and WATANABE, K.: Damage to Cucumber by Stink Bug (Halyomorpha mista) in Yamagata 226

FUKUOKA, T., YAMAKAGE, H. and NIIYAMA, T.: Sucking Injury to Vegetables by the Brown Marmorated Stink Bug, Halyomorph halys (Stal) 229

SAKAKIBARA, M. and TAKASHINO, K.: Individual Rearing of the Diamondback Moth Larvae without Diet Change 232

OKUBO, T.: Cumulative Damage to Japanese Radish by the Yellow Striped Flea Beetle, Phyllotreta striolata(Fabricius), in Hokkaido and Examination of Control Method 236

KIMURA, Y.: Control of the Seedcorn Maggot, Delia platura (Meigen), in Japanese Radish by Covering Host Plants with Nonwoven Fabric 241

TAGAE, M. and OHTOMO, R.: Developmental Zero and Effective Accumulative Temperature of the Allium Leafminer, Liriomyza chinensis 245

TAGAE, M. and OHTOMO, R.: Effect of Low Temperature on Pupal Development of the Allium Leafminer, Liriomyza chinensis 248

GOTO, J., CHlBA, T. and SATO, S.: Occurrence of Ceutorhynchus diffusus, a New Weevil Pest of Upland Wasabi in Iwate 251

IITOMI, A. and NIIYAMA, T.: Dominant Pests and Their Damage to Water Shield in Akita 256 KAWASHIMA, K.: Actual State of Transmission and Accumulation of Tomato Spotted Wilt Virus in Its Insect Vector, the Western Flower Thrips, Frankliniella occidentalis (Pergande), in Chrysanthemum Field 261

KAWASHIMA, K.: Fertility and Growth of Larvae of the Western Flower Thrips, Frankliniella occidentalis (Pergande), on Some Varieties of Chrysanthemum 264

KAWASHIMA, K.: Ovipositional and Feeding Characteristics of Adult of the Garden Pea Leafminer, Chromatomyia horticola (Goureau), in Chrysanthemum 268

FUNAYAMA, K.: Residual Effect of Insecticides on Halyomorpha halys (Stal) (Heteroptera: Pentatomidae) 273

GOTO, S., SATO, T., ABE, 0., SAITO, T. and MARUKAWA, T.: Damage to Persimmons by Stink Bugs and their Seasonal Prevalence in Shonai, Yamagata 276

SUSA, H., YAGINUMA, K. and KATSUMATA, H.: Findings on Damage to Fruit by Stink Bugs Observed during 2001 in Fukushima 279

YAGINUMA, K., SUSA, H. and KATSUMATA, H.: Forecast and Infestation of Fruit-Piercing Stink Bugs during 2001 in Fukushima 282

TAKABE, M.: Occurrence of Damaged Apple Fruits Caused by Cercopid Spittle Bugs, Eoscartopsis assimilis Uhler 285

OKAZAKI, K. and ARAKAWA, A.: Control of Major Lepidopterous Insect Pests by Multiple Mating Disruptor in Apple Orchards 7. Possibility of Reducing Insecticide Application by Using Communication Disruption in the Control of the Fruit Moths 287

OKAZAKI, K., ARAKAWA, A. and ABE, M.: Control of Major Lepidopterous Insect Pests by Multiple Mating Disruptor in Apple Orchards 8. The Influence of Cutting Down Disused Apple Trees on the Damage by Peach Fruit Moth in Adjoining Apple Orchards 290

ARAKAWA, A., OKAZAKI, K., ABE, M., SASAKI, M. and ABE, N.: Control of the Peach Leafminer, Lyonetia clerkella (Linnaeus), by the Multiple Mating Disrupter in Peach Orchards 293

KUSHIDA, A. and MOMOTA, Y.: Axenic Culture of Heterodera glycines on Milk-Vetch Roots Genetically Transformed by Agrobacterium rhizogenes 297

NARABU, T., TSUJI, H. and ISHIKAWA, S.: Field Studies on the Effect of Antagonistic Plants and Weeds on the Population Density of Pratylenchus penetrans 301

IWASAKI, A.: Feeding Injuries to Soybean Seedlings Caused by the Hokkaido Hare, Lepus timidus ainu, and their Effect on Growth and Yield of Soybean 305