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Annual Report of the Society of Plant Protection of North Japan:
Contents
AKAI, J. : The soil-borne diseases and its control of Laguminous crops in upland field converted from paddy field in Hokkaido 1
HIGASHI, T. and SAITO, S. : Mutual relations among levels of field resistance of rice cultivars to rice blast, disease severity and yield losses 7
OHTA, K., CHIBA, S. and SHIMADA, K. : Simulation of rice leaf blast using BLASTCAST, a plant disease simulator 9
HASHIMOTO, A., MATSUMOTO, K. and ADACHI, T. : Some trials for forcasting rice leaf blast epidemics by application of the computer simulation 12
SHINDO, K., YAEGASHI, H. and ASAGA, K. : Races of blast fungus, Pyricularia oryzae Cav., isolated in Tohoku district in 1980 15
SHINDO, K. YAEGASHI, H., IWANO, M. and ASAGA, K. : Blast fungus virulent to Pi-b isolated in Tohoku district in 1980 and 1981 18
IWANO, M. and ASAGA, K. : Estimation of racial composition and its proportion of rice blast fungus (Pyricularia oryzae Cav.) in the paddy field by seeding trap method 21
FUKAYA, T. and KOBAYASHI, J. : Occurrence of resistant strains of Pyricularia oryzae Cavara against Kasugamycin in Akita prefecture and declining of the strains after breakig of chemical application 25
IITOMI, A., FUKAYA, T. and DOBASHI, S. : Occurrence of torelant stains of rice blast fungus for chemicals in Yuri district of Akita prefecture and evaluation of effects of chemicals application in the district with seeding trap 29
ASAGA, K., SHINDO, K. and IWANO, M. : Effect of field resistance and chemical (granule) application on the panicle blast 33
YAMAYA, S. and KOBAYASHI, J. : Relations between effect of Fthalide on rice panicle blast and the chemicals residues in panicle 36
OGAWA, K. and SUWA, M. : Relationship between symptoms and of the age rice seeding inoculated by Pythium sp. 39
TAIRA, T. : The outbreak of the false smut, in Hamadori district, Fukushima prefecture in 1980 41
OIKAWA, T., HONKURA, R. and INOUE, T. : Discoloration of nufulled rice occurred by typhoon at Miyagi prefecture in 1981 43
TANAKA, F. and TSUCHIYA, S. : Causal fungi of brown blotche on glume of rice plant and enviromental factors affecting for the occurrence of the disease in Hokkaido 46
GOTO, T. : Occurrence of rice bacterial grain rot by inoculation of Pseudomonas glumae to seeding of rice plant 49
SUZUKI, H. and FUJITA, Y. : General aspects of snow mold of wheat and rye in the upland field converted from paddy field in the Yokote basin 51
HONKURA, R., OIKAWA, T. and INOUE, T. : Studies on diseases of Jobfs tears I DInfluence of cultivation method on occurrence of Jobfs tears leaf blight 53
INOUE, T., OIKAWA, T.and HONKURA, R, : Studies on diseases of Jobfs tears II DInfection source of leaf blight 55
OIKAWA, T., HONKURA, R. and INOUE, T. : Studies on diseases of Jobfs tears III DEffect of disinfection of Jobfs tears seed on Jobfs tears leaf blight and head smut 58
KUWATA, H. SHIMADA, K., SATOH, N. and OHSAKA, N. : Spore germination of smut fungus of Jobfs tears, Ustilago coicis Bref., with special refference to its thermal death points 60
KUWATA, H., SHIMADA, K. and SATOH, N. : Control of smut disease of Jobfs tears by seed treatment with several fungicides and the effects of the fungicides to the spore germination 63
TAKAHATA, Y., KODAMA, F. and AKAI, J. : Seed rots and damping-off of corn and its control by seed protectant fungicides 65
TSUKIJI, K., OZAWA, T. and OKAJIMA, M. : Technique of application of chemicals and deposition for control of soybean purple speck 67
TSUCHIYA, S., TANAKA, F. and KODAMA, F. : Resistance of some soybean cultivars to Phytophthora megasperma var. sojae Hildebrand and pathogenic race of isolates 69
TANAKA, T. : Difference of resistance of soybean varieties to several isolates of stem rot phytophthora and pathogenic race of isolates 72
HORIGUCHI, H. : Control of the soybean dwarf disease by the soil application of insecticides 75
HYAKUMACHI, M. and UI, T : Relationship between incidence of sugarbeet root rot in monoculture and climatic factors 77
OZAWA, T., SASAKI, K., ENDO, M. and ONO, T. : A suppresive phenomenon of chinese cabbage clubroot in the field 79
FUKUSHIMA, C., OSANAI, Y., NAKAZAWA, N. and SEGAWA, K. : Effect of calcium on violet root rot of apple tree 81
TSURUTA, R. and KOBAYASHI, J. : Distribution pattern and survey method of population density of ovipositional hills by 2nd generetion of rice stem borer, Chilo suppressalis Walker, in paddy fields 83
HASHIMOTO, Y. and HARUKI, T. : Analysis of damage by rice leaf beetle, Oulema oryzae Kuwayama, of rice plant in Hokkaido 85
OHSAWA, S. and SAITO, M. : Estimation of number of annual generations of Togohemipterus Scott by inspection of ovarial development 87
OKUYAMA, S. : Role of day-length in the oviposition of dormant eggs by the leaf bug, Trigonotylus colestialium Kirkaldy, and condition for release from the dormancy 89
IIMURA, S. : Seasonal prevalence of soybean pod borer, Leguminivora glycinivorella (Lepidoptera : Eucosmidae) in southern Iwate prefecture 93
OKU, T. and MIYAHARA, Y. : An aphid infesting soybean root, Smynthurodes betae Westwood 96
FUSE, H., SUZUKI, H., ISHIGURO, K., SAITO, S. and KANEKO, K. : On the diseases and insect pests of soybean in the upland field converted from paddy field in Shonai-district III DDiseases and insect pasts occurred in paddy field planted soybean in a group in 1981 97
FUSE, H., ISHIGURO, K., SAITO, S. and KANEKO, K. : On the diseases and insect pests of soybean in the upland field converted from paddy field in Shonai-district IV DRelation between crop injury by the black cutworm and weed flora 103
MAEDA, M. and KIDOKORO, T. : Analysis of damage on soybean defoliated by herbivorous insects I DEffect of defoliated time and degree on the yield 106
KIDOKORO, T. and MAEDA, M. : Analysis of damage on soybean defoliated by herbivorous insects II DLeaf consumption by larvae of bean tussock moth 108
MIYAHARA, Y. : Virgin female traps for capturing males of Ostrinia furnacalis Guenee 110
AKIYAMA, Y. : Studies on flea beetles of suger beet V DInfluences of temperature and duration of sunshine on egg production 113
AKIYAMA, Y. : Studies on flea beetles of sugar beet VI DInfluence of food plant of adult on egg production 116
AKIYAMA, Y. : Studies on flea beetles of sugar beet VII DHatching of egg in relation to temperature and humidity 118
TSUTSUMI, M. and MITSUI, Y. : The seasonal prevalence of three species of Diptera on onion in Sapporo district 119
SHOJI, T. and SAITO, T. : Some insect pests of safflower, Carthamus tinctorius L, in Yamagata prefecture 122
CHIEDA, T. : Ecological notes on oriental carpenter moth, Cossus japonica Gaede, in apple orchards 124
YAGINUMA, K., SATO, R, KANNO, K. and KUMAKURA, M. : Combined application of carbaryl and organophosphorus insecticides for the control of organophoshorus insecticide-resistant green peach aphid (Myzus persicae Sulzer) 126
YOSHII, T. and SUZUKI, E. : On the nematodes found in mulberry trunks and yellow-spotted longicorn beetles (Coleoptera, Cerambycidae) 129
YOSHII, T. and SUZUKI, E. : Inoculation experiments of the mulberry trees infected with nematodes obtained from mulberry trunks and yellow-spotted longicorn beetles (Coleoptera, Cerambycidae) 131
AMANO, K., HASEGAWA, T. and HAYAKAWA, H. : Comparison of the susceptibilities of the adults of Musca hervei with those of M. domestica to several insecticides by settling mist method 133
INAOKA, T., HAYAKAWA, H. and YONEYAMA, Y. : Faunal makeup and seasonal distribution of hematophagous tabanid flies at pastures in Wassamu, Hokkaido 139
HAYAKAWA, H. : Dung beetles collected from horse and cattle feces at Eburi district, Hokkaido 142
HAYAKAWA, H., YONEYAMA, Y. and INAOKA, T. : Tabanid flies collected at the marshes of Niseko, Kushiro, Sarobetsu and Ukishima in Hokkaido 143
HAYAKAWA, H. and KITAOKA, S. : Culicoides collected by light-trappings at a cattle barn at Shimokuriyagawa, Morioka-shi 144