IDENTIFICATION OF ASPARAGUSIC ACID AS A NEMATICIDE OCCURRING NATURALLY IN THE ROOTS OF ASPARAGUS
- M. Takasugi, Y. Yachida, M. Anetai, T. Masamune, K. Kegasawa
- Chemistry
- 5 January 1975
A nematicidal constituent, present at least at 35 ppm, was isolated from the roots of asparagus and identified as asparagusic acid, which has also been reported to exist in the edible part of the…
Seasonal Abundance and the Possibility of Spring Immigration of the Diamondback Moth, Plutella xylostella(LINNAEUS)(Lepidoptera:Yponomeutidae), in Morioka City, Northern Japan
- K. Honda, Y. Miyahara, K. Kegasawa
- Biology
- 25 November 1992
Sex pheromone of the black cutworm moth, Agrotis ipsilon Hufnagel (Lepidoptera:Noctuidae): Attractant synergist and improved formulation.
- S. Wakamura, D. Struble, H. Matsuura, Masataro Sato, K. Kegasawa
- Biology
- 25 May 1986
Circadian Locomotor Activity Rhythms in the African Clawed Frog, Xenopus laevis: The Role of the Eye and the Hypothalamus
- Y. Harada, M. Goto, S. Ebihara, H. Fujisawa, K. Kegasawa, T. Oishi
- Biology
- 25 February 1998
The effects of hypothalamic lesioning and removal of the eyes on locomotor activity rhythms of African clawed frog, Xenopus laevis were examined and freerunning periods in intact frogs were significantly shorter in dimLL than in DD.
Population Dynamics of Adult Spodoptera litura(FABRICIUS)(Lepidoptera:Noctuidae):Estimation of Male Density by Using Release-Recapture Data
- S. Wakamura, S. Kôzai, K. Kegasawa, H. Inoue
- Environmental Science
- 25 February 1992
Male density was estimated for revealing the reJationship between trap catch wlth synthetic sex pheromone and wild rnale density and showed generally similar, but smaller, fluctuation to the considerably overestimated prejections obtained by PETERsEN's method.
Population dynamics of adult Spodoptera litura (Fabricius) (Lepidoptera: Noctuidae): Dispersal distance of male moths and its seasonal change.
- S. Wakamura, S. Kôzai, K. Kegasawa, H. Inoue
- Environmental Science, Biology
- 25 November 1990
Dispersal distance traveled by male spodoptera litura and its seasonal change frorn May to September wereimated by releasing marked males and later recapturing them with sex pheromone traps, and the dispersal distance decreased during summer.
Sex Pheromone of the Podborer, Matsumuraeses falcana (WALSHINGHAM) (Lepidoptera : Tortricidae) : Activity of the Third Component, (E, Z)-7, 9-Dodecadienyl Acetate, and 3-Component Formulation
- S. Wakamura, K. Kegasawa
- Biology
- 25 May 1986
Major Insect Pests of Leguminous Crops in Japan
- Takashi Kobayashi, T. Hasegawa, K. Kegasawa
- Biology
- 12 September 1972
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