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

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Annual Report of the Society of Plant Protection of North Japan: Contents


No.30i1979j

Michiyo GOTO and Toru YAMADA : Ecological Studies on Emmalocera sp. Parasitic to Echinochloa. Daily Behavioral Rhythms in Adult Stage and Experimental Studies of the Timing Mechanism of Oviposition 6

Takeshi UJIYE : A simple Method for Testing the Residual Effect of Insecticides on the Apple Leaf Miner, Phyllonorycter ringoniella MATSUMURA 12

Kazufumi NISHI : Some Observations on the Fall Webworm Larvae Considered as the Third Generation at Fukushima in 1978 17

Akiyasu ITOMI : The Relation between the Incidence of White-Backed Planthopper, Sogata furcifera HORVATH, and Topography of Area Surrounding Paddy Field 21

Takashi KOBAYASHI, Toshio OKU, Akio TOKI, Takekatsu CHIBA, Kin-etsu WATANABE, Jiro KOBAYASHI, Katsuo FUNABASAMA, Norio EGUCHI and Mitsuru SAITO : Some Important Aspects of she Soybean Injury by Insect Pests in Upland Fields Converted from Paddy Fields in Tohoku District, 1978 26

Norio SEKITA and Masateru YAMADA : Influences of Hibernating Habitats on the Mating of Lyonetia Prunifoliella HUBNER subsp. malinela (MATSUMURA) 31

Katsutaro OKAZAKI : Parasitic Wasps of Rice Leaf Miner, Agromyza oryzae MUNAKATA. No.4. Autoecological Studies on the Chalcid Flies (Hymenoptera : Eulophidae) bred from the Larvae of Rice Leaf Miner (Diptera : Agromyzidae) 35

Yasuhisa FUJITA, Yukio ONUMA, Teruo SANADA, Manabu UMEKAWA, and Yasumasa WATANABE : Augular Leaf Spot of Muskmelon. I . Occurrence of the Desease and Infectivity of Isolated Bacteria 43

Manabu UMEKAWA, Yasumasa WATANABE and Yasuhisa FUJITA : Angular Leaf Spot of Muskmelon. II . Identification of Causal Bacterium 48

Yoshikatsu FUJITA and Hozumi SUZUKI : Suppresion of Blast Disease Occurrence by Double Inoculation between Rice Blast Fungus and Some Fungi on the Rice Plant 53

Kouhei KOMIYA : Fungicidal Effects of Metham-Sodium (Sodium N-Methyldithiocarbamate) in Soil. (1) Fungicidal Activity of Air Passed through Soil Treated with Metham-Sodium 56