Professor [List of research papers]
My publications are downloadable at https://www.researchgate.net/profile/Yukio_Ishikawa
Graduate course: 1) Special lecture on Entomology II 2) Integrated Pest Management 3) Seminar on Basic Biology I, II 4) Special Seminar on Agricultural and Environmental Biology
I am interested in the 'Biology' of the onion maggot Delia antiqua, the Asian corn borer and its allied species Ostrinia spp., and the yellow-spotted longicorn beetle Psacothea hilaris. The final objective of my research is to clarify the 'life' of these species from physiological, biochemical and chemical ecological points of view. To reach this goal, I am currently studying these insects from the following aspects:
As to the Onion maggot, Delia antiqua, the research efforts are now focused on 'Diapause' and 'Cold hardiness' of this insect, although I have conducted researches on 'Host plant - insect relationships' of this insect for more than 20 years.
As to the
have first tried to clarify the phylogenetic
relationships of Ostrinia species inhabiting Japan, because this
information is necessary to analyze the evolutionary changes that happed to this
group of insects. In parallel, the sex
pheromones of Ostrinia spp. have been investigated. In
the next a few years, I intend to clarify the factors that determine host plant preference. Overall, the research goal is
to clarify the evolutionary changes of host plant specificity and sex pheromone
communication system in Ostrinia.
As to the yellow-spotted longicorn beetle, characteristics and photoperiodic control of diapause in this species have been intensively studied. Cold hardiness of this insect was also studied to examine if at what stage this species has the capability for overwintering.