k{aQ --- The Society of Plant Protection of North Japan

k{aQ ڎ
Annual Report of the Society of Plant Protection of North Japan: Contents

No.41 (1990)

TABEI, H. : Infection court of rice bacterial pathogens 1

FUJITA, Y. and YAEGASHI, H. : Some factors affecting the outbreak of "Nae-Imochi", seedling blight of rice caused by Pyricularia oryzae Cavara 4

UZUKI, T., YOSHINO, R., KOIZUMI, S. and HAYASHI, N. : The relation between the number of conidia of rice blast fungus, Pyricularia oryzae Cavara, attached onto a rice leaf blade and the number of conidia caught by the level spore sampler 8

MATSUHASHI, M., FUKAYA, T., IITOMI, A., KISHI, T., NAKAMURA, N., NAGASAWA, J., SATO, K. and KODAMA, K. : Attempt the field survey of upper leaf blast and spikelets blast in order to predict the panicle blast caused by Pyricularia oryzae Cavara 14

FUKAYA, T. : Effect of reduced application rate of probenazole granule on the control of rice leaf blast caused by Pyricularia oryzae Cavara 17

SAKUMA, H., KODAMA, K., SENO, K., FUJITA, Y. and KATOH, T. : Use of airblast sprayer for disease control in paddy field 23

TAKAHASHI, F. and TSUJI, H. : Seasonal occurrence of rice sheath blight and yield losses in Miyagi Prefecture in 1989 28

OHTA, K. and SHIMADA, K. : A computer simulation model for rice sheath blight disease 3. Effect of the time of outbreak on yield losses of the disease 31

FUJITA, Y., SONODA, R. and YAEGESHI, H. : An improved method for conidial formation of false smut fungus 35

HONKURA, R. : Distribution of the perfect stage of Gibberella fujikuroi (Sawada) S.Ito in Miyagi Prefecture 37

NAKAMINAMI, H. and TAKEDA, S. : Sensitivity of Gibberella fujikuroi (Sawada) S.Ito to several seed-treatment fungicides 39

HONKURA, R., MIURA, M. and MIURA, Y. : The damage and the control of rice kernel smut caused by Tilletia horrida Takahashi 43

KATOH, T., FUJITA, Y. and MIURA, Y. : Tropolone method to find rice seed, infected with bacterial seedling blight, Pseudomonas plantarii Azegami et al. 1987 47

OBA, S., SAITO, S., SATO, M., ISHIGAKI, H., TANAKA, T. and UZUKI, T. : On the occurrence of bacterial black node of wheat in Shonai region of Yamagata Prefecture 50

TAKEUCHI, T., TAMURA, O., KODAMA, F. and TANAKA, F. : Benzimidazole resistance of Pseudocercosporella herpotrichoides (From) Deighton in Hokkaido 53

MIKOSHIBA, Y., FUJISAWA, I., FUJITA, Y. and KAJI, K. : Prevalence of soybean dwarf in Tohoku District 58

MIKOSHIBA, Y., HONDA, K., FUJISAWA, I. and KEGASAWA, K. : The period of infection of soybean dwarf virus in soybeans at the northern coastal area in Iwate Prefecture 60

OIKAWA, K., KUWATA, M. and SHIMADA, K. : Cultivar difference in disease severity of carrot bacterial gall, caused by Rhizobacter daucus Goto et Kuwata 1988 62

TAKAHSHI, K. and OZAKI, K. : Race distribution of spinach downy mildew fungus in Iwate Prefecture 64

TAKEDA, S. and NAKAMINAMI, H. : Studies on the forecasting of hop downy mildew I. Dispersal of sporangia 66

KAJI, K. and HANZAWA, S. : Occurrence of fusarium wilt of tomato caused by Fusarium oxysporum f.sp. lycopersici race J2 in Fukushima Prefecture 70


of garlic latent virus on garlic cv " Fukuchi howaito " in Aomori Prefecture 72

YAMASHITA, K., SUGIYAMA, S. and SEITO, M. : Virus diseases occurred on some vegetable and legumes in Nanbu region of Aomori Prefecture 75

YAMASHITA, K. : Mosaic diseases occurred on gentian and prairie gentian in Aomori Prefecture 80

OGATA, T. and OCHIAI, M. : Bud blight caused by Botrytis cinerea Persoon in chinese quince 83

OSADA, S, : Yearly fluctuation in the occurrence of benomyl-resistant strain of japanese pear scab fungus in Miyagi Prefecture 86

NAKATANI, F. and TAKAHASHI, S. : Apple scab lesions developed on sepals and control by timely sprays with ergosterol biosynthetic inhibitor 89

ARAI, S., FUKUSHIMA, C., NAKAZAWA, N. and SEGAWA, K. : Susceptibility of apple root stock infected with apple chlorotic leaf spot virus to white root rot 92

MOCHIZUKI, A. : Feeding response of the adult rice water weevil to methanol extracts of some dicotyledons 94

WATANABE, K. and YOKOYAMA, K. : Effect of temperature on the feeding and ovipositional periods of the adult rice water weevil, Lissorhoptrus oryzophilus Kuschel 96

YOKOYAMA, K., SAITO, T. and WATANABE, K. : Estimation of maximum immigration period and control of the rice water weevil, Lissorhoptrus oryzophilus Kuschel, by using day-degree accumulation 99

TAKEDA, M. : Studies on the fecundity and feeding activity of the overwitered adult of the rice water weevil, Lissorhoptrus oryzophilus Kuschel, (Coleoptera : Curculionidae), under laboratory conditions 1. Effect of temperature 102

KIDOKORO, T. : Recent outbreaks of the green rice leaffhopper, Nephotettix cincticeps (Uhler), and the yellowing of rice leaves in Miyagi Prefecture 105

SHIBUYA, S. and NOGANO, T. : Susceptibility to insecticides in the green rice leaffhopper, Nephotettix cincticeps (Uhler), in Miyagi Prefecture 1. Occurrence of less susceptible population to some insecticides 109

HACHIYA, K. : Effect of temperature on the developmental velocity of small brown planthopper, Laodelphax striatellus Fallen 112

TAKANO, T and FUNABASAMA, K. : Ovipositing prevalence of smaller rice leaf miner, Hydrellia griseola Fallen, on the earlier transplanting rice plant 114

ICHITA, T. : Developmental traits of the rice grasshopper, Oxya yezoensis Shiraki (Orthoptera : Catantopidae) 117

ICHIMORI, T., CHIBA, T., TANAKA, H. and ITO, M. : Relation between the content of spotted rice and the distance from the origin place of sorghum plant bug, Stenotus rubrovittatus Matsumura 121

NAGANO, T. : Occurrence of pecky rice caused by releases of four species rice bugs 125

SATO, R., SATO, T., ASHIDATE, M. and OHSAWA, S. : Seasonal changes of immigration of alate viviparae of the cotton aphid (Aphis gossypii) in the cucumber field 127

SAITO, O. : Seasonal prevalence of the allium leafminer, Acrolepiopsis sapporensis (Matsumura), caught by sex pheromone trap at Sapporo 129

SUZUKI, T. : Systematic control of insect pests on cabbage 1. Evaluation of spray chemicals against the diamondback moth in relation to the insecticide resistance 131

SUZUKI, T. : Systematic control of insect pests on cabbage 2. Control of the diamondback moth by soil application of insecticide 134

TSUTSUI, H. : Overwintering and cold resistance of Rivella apicalis Hendel 136

TSUTSUI, H. : Damages of soybeans by Rivella apicalis Hendel and their control by insecticides 138

HONDA, K., MIKOSHIBA, Y., FUJISAWA, I. and KEGASAWA, K. : Ecological studies on the transmission of the soybean dwarf disease by the foxglove aphid, Aulacorthum solani (Kaltenbach) in Tohoku district, north Japan 1. Differences on the aphid population dynamics and the soybean dwarf incidences between in the inland area and in the Pacific coast area of Iwate Prefecture 140

HONDA, K., MIKOSHIBA, Y., FUJISAWA, I. and KEGASAWA, K. : Ecological studies on the transmission of the soybean dwarf disease by the foxglove aphid, Aulacorthum solani (Kaltenbach) in Tohoku district, north Japan 2. Differences on the density of aphids among six varieties of soybeans and their relationships to the soybean dwarf disease resistance 144

KOHNO, K. and KEGASAWA, K. : Wireworms infested on maize plants 147

TORIKURA, H. : On the life cycle of Aphis gossypii Glover in north-eastern Hokkaido 150

OKUDA, H. and TORIKURA, H. : On the pesticide susceptibility of Aphis gossypii Glover on potato 154

SATO, M., SAITO, S., OBA, S. and ISHIGAKI, H. : Occurrence of the lawn grass cutworm, Spodoptera deprauata Butler, in Shonai district 157

KANEKO, J., SUGAWARA, N. and KITAMURA, C. : Relation between the number of flower-visiting individuals and the number of male moths captured by sex pheromone trap in the silver Y moth (Autographa gamma L.) 160

KANEKO, J., KITAMURA, C., SUGAWARA, N., KANEHIRA, O., AKIYAMA, Y., SAITO, O., SATO, K. and SUGIE, H. : Investigation of the annual prevalence of the silver Y moth (Autographa gamma L.) at different points in Hokkaido with synthetic sex pheromone traps 164

TSUTSUI, H. : Cold resistance and mortality of winter eggs of Ivela auripes (Butler) 167

OHIRA, Y. and OKU, T. : Seasonal history of the peach fruit moth, Carposina sasaki Matsumura, in an isolated garden with plum and Japanese dwarf quince as major hosts 169

YOSHII, T. and ABE, N. : Number of annual generations and fecundity of Lyonetia prunifoliella malinella (Matsumura) (Lepidoptera : Lyonetiidae) 175

AMANO, K., HAYAKAWA, H., YAMASHITA, N., IWANE, K., HASEGAWA, T., TUBAKI, Y. and TAMURA, Y. : Laboratory tests to measure susceptibility of biting midges to permethrin 177

HAYAKAWA, H. and YAMASHITA, N. : Studies on mass rearing methods of the dung beetle, Onthophagus gazella 3. Relationship between the dung of soil and the number of adults emerged 180

HAYAKAWA, H. and YAMASHITA, N. : Studies on mass rearing methods of the dung beetle, Onthophagus gazella 4. A preliminary test on artificial diets for rearing the lervae 182

YAMASHITA, N. and HAYAKAWA, H. : Studies on mass rearing methods of the dung beetle, Onthophagus gazella 5. Influence of nesting density on the progeny number of Onthophagus gazella 184

HAYKAWA, H. and SASAKI, H. : A survey of tabanid flies at Uryu-numa Swamp in Hokkaido 186

KEGASAWA, K., ASAHI, Y. and MOCHIDA, H. : Relationship between the density of soybean cyst nematodes and the growth conditions of soybeans 188

KAGASAWA, K. : Races of soybean cyst nematode in Miyagi, Fukushima and Niigata Prefectures 191

MIYATA, M. and ENDO, N. : The relationships between the density of cobb's root-lesion nematode, Pratylenchus penetrans and the growth of lettuce 193

SATO, M. and AKASAKA, Y. : Varietal difference in the damage of Japanese radish by root-lesion nematode, Pratylenchus sp. 196

AKASAKA, Y. and SATO, M. : Effect of granular nematicides to root-lesion nematode, Pratylenchus sp. on Japanese radish 199

SATO, M. : Control of root-knot nematode, Meloidogyne sp. on Japanese yam by oxamyl 203