Kyushu Plant Protection Research

Variation in the transmission rates of rice grassy stunt virus in various colonies of browm planthopper

Mabito IWASAKI, Masaaki NAKANO, Akira SHINKAI

1982 Volume 28 Pages 1-3
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.1

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A colony of Nilaparvata lugens, designated as K8, was formed by successive selection from infective and uninfective insects after four generations of acquisition feeding. Subsequent trasmission tests indicated 71% transmission for the selected infective insects, 21% for the selected uninfective, and 43% for the nonselected original colony. Ten colonies of N. lugens, collected from different localities in Japan and in different years, were divided into two groups which were tested for transmission rates with two replicates using different virus source plants. The original K8 colony was used as the control in all tests. The transmission rates varied from 8% to 46% (K8 : 50%) and from 1% to 19% (K8 : 21%) in the first and the second groups, respectively, which showed the least variations in the replicates of the same colony.

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Infection of hills rice plants with bacterial grain rot caused by Psudomonas glumae (Kurita et Tabei) Tominaga

Masamiti KAN, Masafumi MATSUZAKI

1982 Volume 28 Pages 3-5
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.3

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New pathogenic race of rice blast fungus, Pyricularia oryzae Cavara, isolated from variety Toride 1 in Kyushu

Hideki NAITO, Shizuo MOGI

1982 Volume 28 Pages 6-9
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.6

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One susceptible lesion developed on the seedlings of Toride 1 in 1979. The monospore culture derived from the lesion was inoculated to 9 differential varieties (shin 2, Aichi-asahi, Ishikari-shiroke, Kanto 51, Tsuyuake, Fukunishiki, Yashiromochi, Pi No. 4 and Toride 1) and Reiho, Mokoto, Nishihomare. Shin 2, Aichi-asahi, Yashiromochi, Pi No. 4, Toride 1 of these differential varieties and Reiho, Mokoto, Nishihomare showed susceptible reactions. The isolate was thus identified as a new race 703. When the susceptible reaction of Reiho was included, the race was designated as 703S. The number of susceptible lesions on Toride 1 and especially Pi No. 4 was fewer than that on other susceptible varieties under the conditions of 26 or 28 C after inoculation for about 20 hours. But the number of susceptible lesions on Pi No. 4 and especially Toride 1 increased when these varieties were placed under the conditions of 20 C for 5 days following inoculation. The isolate of the new race 703 (703S) and all tested isolates were pathogenic toward seedlings of barley, but only two isolates, race 703 (703S) and 102 (102S), were pathogenic toward seedlings of wheat.

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Comparison of field resistance toward rice blast disease by the sheath inoculation method

Kumiko NAKASHIMA, Tadamitsu IWAMOTO, Nobuaki MATSUYAMA

1982 Volume 28 Pages 10-11
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.10

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Comparison of field resistance of six standard varieties toward rice blast disease was conducted by the sheath inoculation method. The results led to the conclusion that this method is useful for the estimation of true resistance but not for that of field resistance.

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Effect of various new fungicides on rice blasts

Wataru HASAMA, Tsutomu TOMIKU, Shunji SATO, Yasuyuki ETO

1982 Volume 28 Pages 12-14
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.12

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Pathogenicity of sclerotial fungi of rice plants

Fukuji NONAKA, Masahiro YOSHIDA, Chun-ming YU, Kinji TANAKA

1982 Volume 28 Pages 15-18
Published: October 30, 1982
Released on J-STAGE: December 09, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.15

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In artificial inoculation using pot-grown rice plants, pathogenic differences were found in four sclerotial fungi tested. The severity of the pathogenicity was in order of Pelli-cularia sasakii, the most severe; Rhizoctonia oryzae, severe; Sclerotium oryzae-sativae, moderate; and the culture type III-B of Rhizoctonia solani, slight, while there werec ertain pathogenic differences within the isolates of individual fungal species. In paddy field experiments, the pathogenic severity of these fungi was in the following order when the rice plants were inoculated at the stage of panicle formation on August 10:R. oryzae≥the culture type III-B of R. solani>P. sasakii≥S. oryzae-sativae. However, when inoculated at the boot-stage on August 24, the pathogenic severity was in order of P. sasakii>the culture type III-B of R. solani>S. oryzae-sativae>R. oryzae. Thus, it is suggested that the pathogenicity of the sclerotial fungi on rice plants varies according to the growth stage of rice plants at the time of inoculation.

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Seasonal development of sclerotial diseases of rice plants in paddy fields

Fukuji NONAKA, Masahiro YOSHIDA, Chun-ming YU, Kinji TANAKA

1982 Volume 28 Pages 18-21
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.18

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Seasonal development of four sclerotial diseases of rice plants, namely sheath blight caused by Pellicularia sasakii, brown sclerotial disease caused by Sclerotium oryzae-sativae, brown sheath blight caused by the culture type III-B of Rhizoctonia solani and bordered sheath blight caused by R. oryzae, were observed in paddy fields during the rice growing season in 1981. Disease diagnosis was based primarily on lesion symptomatology and confirmation of the disease diagnosis was made by isolating the causal organisms in the cases of sheath blight like lesions and pseudo-sheath blight lesions. The first development of sheath blight, bordered sheath blight, brown sheath blight and brown sclerotial diseases was observed in early August, late August, post-heading time (early September), and milk-ripening time (middle September), respectively. Exceedingly progressed development of brown sclerotial disease was observed from early Octorber to harvesting time, at which time a mixture of sclerotial diseases consisting mostly of brown sclerotial disease and other sclerotial diseases was observed in the same paddy field.

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Forecastion of wheat scab disease by climatic condition

Tomio TAKASAKI, Daizaburo YOSHIMURA, Mari OTOFUJI

1982 Volume 28 Pages 21-24
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.21

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Further study on strains of soybean mosaic virus in Kyushu

Masaaki NAKANO, Mabito IWASAKI, Akira SHINKAI

1982 Volume 28 Pages 24-25
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.24

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Occurrence of soybean purple stain and its chemical control

Tsutomu TOMIKU, Shunji SATO, Wataru HASAMA, Yasuyuki ETO

1982 Volume 28 Pages 26-28
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.26

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Yield loss and vascular discoloration of tubers on potato bacterial wilt caused by Pseudomonas solanacearum

Katsumi KATAYAMA, Sadao KIMURA

1982 Volume 28 Pages 28-30
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.28

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The yield loss and vascular discoloration of potato tubers caused by Pseudomonas solanacearum were surveyed. Susceptible cultivar "Dejima" was grown on field plots whose soil was treated with certain chemicals for their evaluation. A highly significant correlation was found between wilt incidence and yield. Regression lines showed that final wilt incidence could be equated with the percentage of yield loss. With an increase in wilt incidence of the plots, the percentage of discoloration and detection of pathogen from tubers increased.

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Effect of land improvement on the occurrence of potato common scab and bacterial wilt

Toshinori SHINSU, Fumio YANO, Yoshitaka NAGAO

1982 Volume 28 Pages 31-33
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.31

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Effect of solar soil heating by transparent vinyl film mulching during hot seasons on potato common scab and bacterial wilt

Soichi SAKAGUCHI, Sunao TOYOMURA, Noriyuki MATSUBARA

1982 Volume 28 Pages 34-36
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.34

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Development of potato common scab disease in the field and its control by watering

Nobuya TASHIRO, Heizo YAMAMOTO, Yoshimitsu MATSUO

1982 Volume 28 Pages 36-40
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.36

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By successive observations of the development of potato common scab caused by Streptomyces scabies in the field, it was found that the infection period of the organism was about thirty days in the early stages of tuber development and the soil moisture in the infection period was closely related to the severity of the potato scab. The relationship between these findings was tested by watering during three stages into which the thirty day infection period was divided: the first stage, the second stage and the last stage. Potato scabs were greatly reduced by high moisture during the twenty days of the second and last stages.

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Detection of watermelon and cucumber mosaic viruses in vegetables by Enzyme-Linked Immunosorbent Assay (ELISA)

Takeo MIURA, Hitoshi KAWAGOE, Nobumichi SAKO

1982 Volume 28 Pages 40-42
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.40

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Causal viruses of cucurbits and sweet peppers in the fields were quickly detected by ELISA. Diagnosis of watermelon (WMV) and cucumber mosaic viruses (CMV) in cucurbits was made using antiγ-globulins coated on the same polystyrene microtitre plate. Double infection of the two viruses occurred at high frequencies in cucurbits grown in July whereas single infection of WMV was increasingly detected in the crops collected from August to November. ELISA was sensitive in detecting CMV in sweet peppers, while sap inoculations of indicator plants failed to detect CMV in the plants due to hot temperature in mid-summer or inhibitory effects of virus inhibitors in the crude sap.

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Mosaic diseases of pumpkin plants in Miyako and Yaeyama Islands, Okinawa 2. Leaf position with symptoms and formation of fruits with wens

Yoshihiro OHTSU, Nobumichi SAKO

1982 Volume 28 Pages 42-44
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.42

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Watermelon mosaic virus causes the most serious diseases of pumpkin plants in the Miyako and Yaeyama Islands. The pumpkins of infected plants showed the appearance of abnormal 'wens'. The symptoms of fruit were evident when leaf symptoms were observed at least on the first leaf to root side of fruit-bearing nodes and on subsequently emerging leaves. In order to harvest normal fruits, at least two symptom-free leaves to the tip side from fruit-bearing nodes had to be developed on the plants.

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Mosaic diseases of pumpkin plants in Miyako and Yaeyama Islands, Okinawa. 3. ELISA test of field samples

Nobumichi SAKO, Koushuke YOSHIOKA, Yoshihiro OHTSU

1982 Volume 28 Pages 45-47
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.45

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Naturally infected pumpkin plants were collected in Ishigaki Island, Okinawa on January 1982 and tested for the presence of watermelon mosaic virus (WMV) in various parts of the plants by ELSA. Test samples were prepared by grinding fresh materials in PBS-T (1:19) and filtrating the crude sap through two layers of gause. WMV could be detected easily by ELISA in leaves, petioles, roots, stems, flowers, fruits and seeds from infected plants. Higher virus concentrations were distributed in leaves, anther among staminate flower parts, colyx lobe among pistillate flower parts epicarp among fruit parts and the seed coats of seed parts. For diagnosis of WMV in field samples by ELISA, nearly all parts of the infected plants were useful as test sources.

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Occurrence of Onion-BIWADAMA like sympotoms and lettuce yellows caused by a leafhopper, Macrosteles orientalis, in developed areas of lettuce yellows, mycoplasmalike organism

Katsuhiko KOGA, Akira KISO, Yoshikuni NOMURA

1982 Volume 28 Pages 48-49
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.48

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Acute wilt disease of cucumbers grafted on squash root stock in a vinyl house culture

Akira KISO, Yoshikuni NOMURA

1982 Volume 28 Pages 50-53
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.50

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Control of acute wilt disease of water-melon grafted on calabash gourd stock

Sumito TANAKA, Hiroshi IKEDA, Toshinobu NAKAMURA

1982 Volume 28 Pages 53-54
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.53

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Cultural control of root-knot nematode (Meloidogyne incognita) and fusarium wilt (Fusarium oxysporum f. sp. lagenariae) in field watermelons in a plastic greenhouse

Seiji KOGA, Takahiko KOGA, Takenori NAKAYAMA

1982 Volume 28 Pages 55-58
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.55

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Effect of various fungicides on powdery mildew of cucumbers

Shunji SATO, Tsutomu TOMIKU, Shunji ANDO, Wataru HASAMA

1982 Volume 28 Pages 59-61
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.59

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Distribution of drug-resistant Botrytis from 1970 to 1981 in Nagasaki prefecture

Sadao KIMURA, Yoshio OGAWA, Michiaki NAGANO

1982 Volume 28 Pages 61-64
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.61

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Properties of iprodione resistant Botrytis cinerea. (1) Growth features in media containing pure dicarboximide fungicides

Yoshikuni NOMURA, Akira KISO, Yoshihiro KANEGAE

1982 Volume 28 Pages 64-66
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.64

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Iprodione resistant isolates of Botrytis cinerea were obtained from tomatoes cultivated in a vinyl house using iprodione fungicide, and the growth of isolates in PDA media containing pure dicarboximide compounds was tested. The growth of the isolates was suppressed at 35-75 ppm of iprodione, but recovered at 100-500 ppm. Growth features in response to iprodione were found on both wettable powder and the pure compound at almost the same density as the efficient ingredient in the media. But growth features in response to procymidone and vinclozolin could hardly be detected.

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Control by certain fungicides of southern blight, Corticium rolfsii CURZI, on vege-tables

Akira KISO, Yoshikuni NOMURA, Yoshiharu KANEGAE

1982 Volume 28 Pages 66-69
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.66

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Effects of sulfur-containing amino acids on sclerotial formation of Sclerotium rolfsii

Hirobumi TAZAKI, Nobuaki MATSUYAMA, Satoshi WAKIMOTO

1982 Volume 28 Pages 69-70
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.69

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The sclerotial formation of Sclerotium rolfsii was stimulated or inhibited by various amino acids. Sulfur-containing amino acids were always inhibitive toward the formation. Despite the structural resemblance between serine and cysteine, the effect on formation is quite different. This fact may possibly indicate the inhibitory effect of S or SH toward sclerotium development. The process of sclerotium formation was divided into main five stages: hyphal branching, aggregation and network formation, initials formation, whitish sclerotium formation and maturation. Inhibition by sulfur-containing amino acids appeared more distinctly when treatment was conducted at the early stage of sclerotium development. The mechanism of inhibition is briefly discussed.

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Effects of control on rot of onion bulbs during storage through fungicide application during the growing season

Masafumi MATSUZAKI, Masamiti KAN

1982 Volume 28 Pages 70-73
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.70

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A test of control effects on rot of onion bulbs during storage in the summer season was made by applying several kinds of fungicides to onion leaves infected by Phytophthora porri and Peronospora destructor during the growing season. The rot of onion bulbs decreased more by two applications of mancozeb prior harvest than by the same amount of chlorothalonil (TPN). The most effective results were obtained by four applications of mancozeb and three of zineb during the growing season, and by four applications of ridomil at the early part of the growing season.

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Phytophthora Rot of Anemone spp

Hiroshi IKEDA, Sumito TANAKA, Toshinobu NAKAMURA

1982 Volume 28 Pages 74-75
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.74

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Effects of hot-water treatment of seedling on gentian disease by Pyrenochaeta spp

Shuntaro TANOUE, Takenori NAKAYAMA

1982 Volume 28 Pages 75-78
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.75

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Comparative studies on the bacteriological properties of three strains of Pseudomonas syringae pv. Eriobotryae

Akira MORITA

1982 Volume 28 Pages 78-80
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.78

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[title in Japanese]

Tamotu KIKU

1982 Volume 28 Pages 80-82
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.80

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Assay of the antimicrobial activity of copper compound (Kocide) toward Xantho-monas campestris pv. citri on medium

Takahiko OTA

1982 Volume 28 Pages 83-85
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.83

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Bactericidal activity of the copper compound, Kocide, toward Xanthomonas campestris pv. citri was observed by assay under low component concentrations in the medium. The copper compound showed no inhibition toward the multiplication of X. campestris pv. citri at high concentrations. Polypeptone, sodium glutamate, and yeast extract added to the medium, inhibited the bactericidal activity of the copper compound while sucrose, magnesium sulfate, and agar had no influence on the inhibitory activity. Thus, it was found that PPS media diluted from ten to one hundred times with water were suitable for a bioassay of the copper compound activity toward X. campestris pv. citri.

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Establishment of a control program for diseases and pests of Kawano Natsudaidai (4) Effects of machine oil on citrus canker diseases

Takaharu ISODA, Shigeru YAMAMOTO

1982 Volume 28 Pages 86-89
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.86

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Method for chemical control of diseases and pests of growing citrus in a plastic greenhouse

Kimio ONO

1982 Volume 28 Pages 89-92
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.89

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Control of dead arm on 'Kyoho' grapevine

Mitsuo SADAMATSU, Kazuhiro OGATA

1982 Volume 28 Pages 93-96
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.93

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Characteristics of 'KIRINASHI FUNKO' a new driftless spray nozzle

Mitsuo SADAMATSU, Kazuhiro OGATA

1982 Volume 28 Pages 97-99
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.97

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Tolerance of tea anthracnose fungus Gloeosporium theae-sinensis, toward thiophanatemethyl and benomyl fungicide. (3) Occurrence of moderately resistant

Toshiyuki NONAKA

1982 Volume 28 Pages 100-102
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.100

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Causes of and countermeasures for damage to August rush plant seedings

Kiyoshi NARIKIYO

1982 Volume 28 Pages 102-106
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.102

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Relation of the occurrence of sugarcane diseases to sugarcane varieties and soil types in Okinawa

Kazuo HOKAMA, Ansho MIYARA

1982 Volume 28 Pages 106-108
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.106

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Ecology of the rice stem borer, Chilo supplessalis WALKER

Possibility of infestation of rice plants by the population grown on water-oats.

Kazuo MIYAHARA, Hatuko MIKURIYA, Hidehiko WAKIBE

1982 Volume 28 Pages 109-111
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.109

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Collection of rice leafrollers and brown planthoppers in traps equipped with fluorescent lamp and rice seedlings

Yukihiko YAMASHITA, Saburo FUKAMACHI

1982 Volume 28 Pages 111-113
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.111

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Host plant diversity and species-specific calling sounds in certain Sogatella spp. (Homoptera: Delphacidae)

Ki-Baik UHM, Hitoshi INOUE, Jutaro HIRAO

1982 Volume 28 Pages 113-116
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.113

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Our field observations indicate that the major host plants are Oryza sativa (rice) for Sogatella furcifera, Echinochloa crus-galli (barnyard grass) for S. panicicola, and Digitaria adscendens for S. longifurcifera. All of these plants gave good growth of insects in the laboratory except that both S. furcifera and S. panicicola showed a high mortality on D. adscendens. The distinct difference in calling sounds of these species suggested sexual isolation one from another. In an oscillograph analysis of sounds a series of male calling sounds consisted of two types, a trill of regular and irregular pulses, and in the case of females a series of simple and regular pulses consisting of several chirps, showing different rates of pulse repetition. No identical or confusingly similar sounds were demonstrated among the species. Interspecific insect crosses were unsuccessful for any combination of the three species.

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Catches of migrating rice planthoppers on the East China Sea and northern Kyushu, Japan in late June 1981

Shingo OYA, Jutaro HIRAO

1982 Volume 28 Pages 117-121
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.117

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A voyage survey to catch migrating rice planthoppers on a ship stationed at the Weather Station (31°N, 126°E) on, the East China Sea was carried out from June 23 to July 2, 1981. The results showed that the planthoppers were caught on June 24 and during June 27-30. The total number of planthoppers caught by net traps, 1 m in diameter and 18 m above the sea, during the voyage period was 125 Sogatella furcifera, 38 Nilaparvata lugens, and 19 Laodelphax striatellus. Also 14 species in 9 families includ-ing 6 species of agricultural importance were caught simultaneously during the period. Planthdpper immigration at Chikugo (33°12'N, 130°30'E), northern Kyushu, was observed twice, June 23 and June 27-30. The latter immigration at Chikugo coincided well with that on the Sea in terms of north-eastward migration, whereas the former occurred independently at these two stations. The total number of planthoppers caught at Chikugo during June 27-30 was 2, 129 S. furcifera and 19 N. lugens by 2 net traps and 1, 447 and 136, respectively, by a light trap. The difference in the number of planthoppers caught at the two stations presumably depends on the distance from the Baiu front with which migrations are considered to be associated. The fronts were always located close to Chikugo during the period of investigation.

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Control effects on rice insects by the seedling box application of mixed granules of disulfoton and cartap

Saburo FUKAMACHI, Akio KUDAMATSU

1982 Volume 28 Pages 121-124
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.121

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Laboratory testing methods of dust used against leafrollers, Cnaphalocrocis medinalis CUENEE

Satoru SHIMENO, Koki HIROTA

1982 Volume 28 Pages 124-126
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.124

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An improved testing method was developed for evaluating the effects of dusts on rice leaf rollers, C. medinalis. The plants, with or without insects, were dusted in a cylindrical plastic case of a size larger than that of a conventional Bell-jar duster, this facilitated the use of test plants of larger size. By this method, the effects of several kinds of dusts were tested for the relation between larval age and mortality, residual activity toward larvae and contact toxicity toward adults. Good correlation was found between the results of laboratory tests and those obtained from field experiments.

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Ecology and control of thrips infesting fruit vegetables. 5. Developmental velocity of Thrips palmi

Kouji NONAKA, Satoshi TERAMOTO, Kiyofumi NAGAI

1982 Volume 28 Pages 126-127
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.126

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Ecology and control of thrips infesting fruit vegetables. 6. Reproductive potential of Thrips palmi

Satoshi TERAMOTO, Kouji NONAKA, Kiyofumi NAGAI

1982 Volume 28 Pages 128-129
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.128

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Parthenogenesis in Thrips palmi KARNY

Toshio YOSHIHARA, Akira KAWAI

1982 Volume 28 Pages 130-131
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.130

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[in Japanese]

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Tests for attractiveness of white sticky trap for Thrips palmi KARNY

Akira KAWAI

1982 Volume 28 Pages 132-134
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.132

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[in Japanese]

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Physical control of Thrips palmi KARNY

Hiroshi SUZUKI, Shinco TAMAKI, Ansei MIYARA

1982 Volume 28 Pages 134-137
Published: October 30, 1982
Released on J-STAGE: May 22, 2009

DOIhttps://doi.org/10.4241/kyubyochu.28.134

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